./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.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_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/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_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/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_46cb3788-39d1-4bdc-82f7-2510e03be17c/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 283b2978ab7cc2aad6d9ef5bd7f2056001c273cafa889d9023ed11b9be13f4c5 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 19:28:35,466 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 19:28:35,468 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 19:28:35,498 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 19:28:35,499 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 19:28:35,500 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 19:28:35,501 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 19:28:35,504 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 19:28:35,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 19:28:35,507 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 19:28:35,508 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 19:28:35,509 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 19:28:35,510 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 19:28:35,511 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 19:28:35,512 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 19:28:35,514 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 19:28:35,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 19:28:35,515 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 19:28:35,518 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 19:28:35,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 19:28:35,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 19:28:35,523 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 19:28:35,525 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 19:28:35,525 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 19:28:35,529 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 19:28:35,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 19:28:35,530 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 19:28:35,531 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 19:28:35,531 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 19:28:35,532 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 19:28:35,533 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 19:28:35,533 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 19:28:35,534 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 19:28:35,535 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 19:28:35,536 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 19:28:35,536 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 19:28:35,537 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 19:28:35,537 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 19:28:35,537 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 19:28:35,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 19:28:35,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 19:28:35,540 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-06 19:28:35,556 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 19:28:35,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 19:28:35,556 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 19:28:35,556 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 19:28:35,557 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 19:28:35,557 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 19:28:35,557 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 19:28:35,558 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 19:28:35,558 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 19:28:35,558 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 19:28:35,558 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 19:28:35,558 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 19:28:35,558 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 19:28:35,558 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 19:28:35,558 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 19:28:35,558 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 19:28:35,559 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 19:28:35,559 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 19:28:35,559 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 19:28:35,559 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 19:28:35,559 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 19:28:35,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:28:35,559 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 19:28:35,559 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 19:28:35,560 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 19:28:35,560 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 19:28:35,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 19:28:35,560 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 19:28:35,560 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 19:28:35,560 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 19:28:35,560 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 19:28:35,560 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_46cb3788-39d1-4bdc-82f7-2510e03be17c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 283b2978ab7cc2aad6d9ef5bd7f2056001c273cafa889d9023ed11b9be13f4c5 [2021-12-06 19:28:35,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 19:28:35,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 19:28:35,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 19:28:35,761 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 19:28:35,762 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 19:28:35,763 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i [2021-12-06 19:28:35,803 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/data/151fc120e/b31a74a93cc3424b8db1514483d47aeb/FLAG8e95bf28f [2021-12-06 19:28:36,462 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 19:28:36,463 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i [2021-12-06 19:28:36,498 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/data/151fc120e/b31a74a93cc3424b8db1514483d47aeb/FLAG8e95bf28f [2021-12-06 19:28:36,589 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/data/151fc120e/b31a74a93cc3424b8db1514483d47aeb [2021-12-06 19:28:36,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 19:28:36,593 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 19:28:36,594 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 19:28:36,594 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 19:28:36,597 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 19:28:36,598 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:28:36" (1/1) ... [2021-12-06 19:28:36,599 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@461bcccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:36, skipping insertion in model container [2021-12-06 19:28:36,599 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:28:36" (1/1) ... [2021-12-06 19:28:36,605 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 19:28:36,708 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 19:28:38,389 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_46cb3788-39d1-4bdc-82f7-2510e03be17c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i[319471,319484] [2021-12-06 19:28:38,435 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:28:38,456 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 19:28:38,727 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_46cb3788-39d1-4bdc-82f7-2510e03be17c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i[319471,319484] [2021-12-06 19:28:38,738 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:28:38,875 INFO L208 MainTranslator]: Completed translation [2021-12-06 19:28:38,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:38 WrapperNode [2021-12-06 19:28:38,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 19:28:38,877 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 19:28:38,877 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 19:28:38,877 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 19:28:38,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:38" (1/1) ... [2021-12-06 19:28:38,947 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:38" (1/1) ... [2021-12-06 19:28:39,063 INFO L137 Inliner]: procedures = 336, calls = 1905, calls flagged for inlining = 163, calls inlined = 135, statements flattened = 4619 [2021-12-06 19:28:39,064 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 19:28:39,064 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 19:28:39,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 19:28:39,065 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 19:28:39,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:38" (1/1) ... [2021-12-06 19:28:39,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:38" (1/1) ... [2021-12-06 19:28:39,095 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:38" (1/1) ... [2021-12-06 19:28:39,096 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:38" (1/1) ... [2021-12-06 19:28:39,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:38" (1/1) ... [2021-12-06 19:28:39,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:38" (1/1) ... [2021-12-06 19:28:39,221 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:38" (1/1) ... [2021-12-06 19:28:39,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 19:28:39,238 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 19:28:39,238 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 19:28:39,238 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 19:28:39,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:38" (1/1) ... [2021-12-06 19:28:39,245 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:28:39,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:28:39,263 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 19:28:39,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 19:28:39,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-06 19:28:39,299 INFO L130 BoogieDeclarations]: Found specification of procedure get_page [2021-12-06 19:28:39,299 INFO L138 BoogieDeclarations]: Found implementation of procedure get_page [2021-12-06 19:28:39,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-06 19:28:39,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-06 19:28:39,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-06 19:28:39,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-06 19:28:39,300 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-06 19:28:39,300 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-12-06 19:28:39,300 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-12-06 19:28:39,300 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_change_mtu [2021-12-06 19:28:39,300 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_change_mtu [2021-12-06 19:28:39,300 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-12-06 19:28:39,300 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-12-06 19:28:39,300 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_write [2021-12-06 19:28:39,300 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_write [2021-12-06 19:28:39,300 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-06 19:28:39,300 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-06 19:28:39,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-06 19:28:39,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-06 19:28:39,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-06 19:28:39,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-06 19:28:39,301 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-12-06 19:28:39,301 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-12-06 19:28:39,301 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_irq [2021-12-06 19:28:39,301 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_irq [2021-12-06 19:28:39,301 INFO L130 BoogieDeclarations]: Found specification of procedure bind_evtchn_to_irqhandler [2021-12-06 19:28:39,301 INFO L138 BoogieDeclarations]: Found implementation of procedure bind_evtchn_to_irqhandler [2021-12-06 19:28:39,301 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2021-12-06 19:28:39,301 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2021-12-06 19:28:39,301 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_remove [2021-12-06 19:28:39,301 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_remove [2021-12-06 19:28:39,301 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_percpu [2021-12-06 19:28:39,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_percpu [2021-12-06 19:28:39,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-06 19:28:39,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-06 19:28:39,302 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_make_txreqs [2021-12-06 19:28:39,302 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_make_txreqs [2021-12-06 19:28:39,302 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_destroy_queues [2021-12-06 19:28:39,302 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_destroy_queues [2021-12-06 19:28:39,302 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-12-06 19:28:39,302 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-12-06 19:28:39,302 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-06 19:28:39,302 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-06 19:28:39,302 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_grant_ring [2021-12-06 19:28:39,302 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_grant_ring [2021-12-06 19:28:39,302 INFO L130 BoogieDeclarations]: Found specification of procedure free_percpu [2021-12-06 19:28:39,302 INFO L138 BoogieDeclarations]: Found implementation of procedure free_percpu [2021-12-06 19:28:39,302 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-06 19:28:39,303 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-06 19:28:39,303 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_claim_grant_reference [2021-12-06 19:28:39,303 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_claim_grant_reference [2021-12-06 19:28:39,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-06 19:28:39,303 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-06 19:28:39,303 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-06 19:28:39,303 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-06 19:28:39,303 INFO L130 BoogieDeclarations]: Found specification of procedure netif_set_real_num_tx_queues [2021-12-06 19:28:39,303 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_set_real_num_tx_queues [2021-12-06 19:28:39,303 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access [2021-12-06 19:28:39,303 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access [2021-12-06 19:28:39,303 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_disconnect_backend [2021-12-06 19:28:39,303 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_disconnect_backend [2021-12-06 19:28:39,303 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_stats64 [2021-12-06 19:28:39,303 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_stats64 [2021-12-06 19:28:39,304 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-06 19:28:39,304 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-06 19:28:39,304 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_alloc_evtchn [2021-12-06 19:28:39,304 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_alloc_evtchn [2021-12-06 19:28:39,304 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-12-06 19:28:39,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-12-06 19:28:39,304 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_alloc_grant_references [2021-12-06 19:28:39,304 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_alloc_grant_references [2021-12-06 19:28:39,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2021-12-06 19:28:39,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2021-12-06 19:28:39,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 19:28:39,304 INFO L130 BoogieDeclarations]: Found specification of procedure netfront_tx_slot_available [2021-12-06 19:28:39,304 INFO L138 BoogieDeclarations]: Found implementation of procedure netfront_tx_slot_available [2021-12-06 19:28:39,304 INFO L130 BoogieDeclarations]: Found specification of procedure notify_remote_via_irq [2021-12-06 19:28:39,304 INFO L138 BoogieDeclarations]: Found implementation of procedure notify_remote_via_irq [2021-12-06 19:28:39,305 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_release_grant_reference [2021-12-06 19:28:39,305 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_release_grant_reference [2021-12-06 19:28:39,305 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-06 19:28:39,305 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-06 19:28:39,305 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-12-06 19:28:39,305 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-12-06 19:28:39,305 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_can_sg [2021-12-06 19:28:39,305 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_can_sg [2021-12-06 19:28:39,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 19:28:39,305 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-06 19:28:39,305 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-06 19:28:39,305 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-06 19:28:39,305 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-06 19:28:39,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-06 19:28:39,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-06 19:28:39,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-06 19:28:39,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-06 19:28:39,306 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_rxidx [2021-12-06 19:28:39,306 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_rxidx [2021-12-06 19:28:39,306 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-06 19:28:39,306 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-06 19:28:39,306 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2021-12-06 19:28:39,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2021-12-06 19:28:39,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 19:28:39,306 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2021-12-06 19:28:39,306 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2021-12-06 19:28:39,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 19:28:39,306 INFO L130 BoogieDeclarations]: Found specification of procedure write_queue_xenstore_keys [2021-12-06 19:28:39,306 INFO L138 BoogieDeclarations]: Found implementation of procedure write_queue_xenstore_keys [2021-12-06 19:28:39,306 INFO L130 BoogieDeclarations]: Found specification of procedure pfn_to_mfn [2021-12-06 19:28:39,306 INFO L138 BoogieDeclarations]: Found implementation of procedure pfn_to_mfn [2021-12-06 19:28:39,307 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-12-06 19:28:39,307 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-12-06 19:28:39,307 INFO L130 BoogieDeclarations]: Found specification of procedure add_id_to_freelist [2021-12-06 19:28:39,307 INFO L138 BoogieDeclarations]: Found implementation of procedure add_id_to_freelist [2021-12-06 19:28:39,307 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_alloc_rx_buffers [2021-12-06 19:28:39,307 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_alloc_rx_buffers [2021-12-06 19:28:39,307 INFO L130 BoogieDeclarations]: Found specification of procedure skb_entry_set_link [2021-12-06 19:28:39,307 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_entry_set_link [2021-12-06 19:28:39,307 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-06 19:28:39,307 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-06 19:28:39,307 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-06 19:28:39,307 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-06 19:28:39,307 INFO L130 BoogieDeclarations]: Found specification of procedure store_rxbuf [2021-12-06 19:28:39,307 INFO L138 BoogieDeclarations]: Found implementation of procedure store_rxbuf [2021-12-06 19:28:39,308 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-12-06 19:28:39,308 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-12-06 19:28:39,308 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2021-12-06 19:28:39,308 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2021-12-06 19:28:39,308 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access_ref [2021-12-06 19:28:39,308 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access_ref [2021-12-06 19:28:39,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-06 19:28:39,308 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_make_one_txreq [2021-12-06 19:28:39,308 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_make_one_txreq [2021-12-06 19:28:39,308 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-12-06 19:28:39,308 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-12-06 19:28:39,308 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_free_grant_references [2021-12-06 19:28:39,308 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_free_grant_references [2021-12-06 19:28:39,308 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2021-12-06 19:28:39,308 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2021-12-06 19:28:39,308 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-12-06 19:28:39,309 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-12-06 19:28:39,309 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-06 19:28:39,309 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-06 19:28:39,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-06 19:28:39,309 INFO L130 BoogieDeclarations]: Found specification of procedure unbind_from_irqhandler [2021-12-06 19:28:39,309 INFO L138 BoogieDeclarations]: Found implementation of procedure unbind_from_irqhandler [2021-12-06 19:28:39,309 INFO L130 BoogieDeclarations]: Found specification of procedure get_zeroed_page [2021-12-06 19:28:39,309 INFO L138 BoogieDeclarations]: Found implementation of procedure get_zeroed_page [2021-12-06 19:28:39,309 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_free_netdev [2021-12-06 19:28:39,309 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_free_netdev [2021-12-06 19:28:39,309 INFO L130 BoogieDeclarations]: Found specification of procedure netback_changed [2021-12-06 19:28:39,309 INFO L138 BoogieDeclarations]: Found implementation of procedure netback_changed [2021-12-06 19:28:39,309 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_poll_controller [2021-12-06 19:28:39,309 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_poll_controller [2021-12-06 19:28:39,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 19:28:39,309 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2021-12-06 19:28:39,309 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2021-12-06 19:28:39,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-06 19:28:39,310 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-06 19:28:39,310 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_select_queue [2021-12-06 19:28:39,310 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_select_queue [2021-12-06 19:28:39,310 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_end_access [2021-12-06 19:28:39,310 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_end_access [2021-12-06 19:28:39,310 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-06 19:28:39,310 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-06 19:28:39,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-06 19:28:39,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-06 19:28:39,310 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2021-12-06 19:28:39,310 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2021-12-06 19:28:39,310 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_init [2021-12-06 19:28:39,310 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_init [2021-12-06 19:28:39,310 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-06 19:28:39,310 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-06 19:28:39,310 INFO L130 BoogieDeclarations]: Found specification of procedure skb_add_rx_frag [2021-12-06 19:28:39,311 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_add_rx_frag [2021-12-06 19:28:39,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 19:28:39,311 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-12-06 19:28:39,311 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-12-06 19:28:39,311 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-12-06 19:28:39,311 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-12-06 19:28:39,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-06 19:28:39,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-06 19:28:39,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-06 19:28:39,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-06 19:28:39,311 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_fix_features [2021-12-06 19:28:39,311 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_fix_features [2021-12-06 19:28:39,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 19:28:39,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-12-06 19:28:39,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-06 19:28:39,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-06 19:28:39,311 INFO L130 BoogieDeclarations]: Found specification of procedure get_phys_to_machine [2021-12-06 19:28:39,312 INFO L138 BoogieDeclarations]: Found implementation of procedure get_phys_to_machine [2021-12-06 19:28:39,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 19:28:39,312 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-06 19:28:39,312 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-06 19:28:39,312 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2021-12-06 19:28:39,312 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2021-12-06 19:28:39,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 19:28:39,312 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-12-06 19:28:39,312 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-12-06 19:28:39,312 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-12-06 19:28:39,312 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-12-06 19:28:39,312 INFO L130 BoogieDeclarations]: Found specification of procedure show_rxbuf [2021-12-06 19:28:39,312 INFO L138 BoogieDeclarations]: Found implementation of procedure show_rxbuf [2021-12-06 19:28:39,312 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2021-12-06 19:28:39,312 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2021-12-06 19:28:39,312 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-06 19:28:39,312 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-06 19:28:39,313 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_grant_foreign_access_ref [2021-12-06 19:28:39,313 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_grant_foreign_access_ref [2021-12-06 19:28:39,313 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-12-06 19:28:39,313 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-12-06 19:28:39,313 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_set_features [2021-12-06 19:28:39,313 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_set_features [2021-12-06 19:28:39,313 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-12-06 19:28:39,313 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-12-06 19:28:39,313 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_irq [2021-12-06 19:28:39,313 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_irq [2021-12-06 19:28:39,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 19:28:39,313 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_free_evtchn [2021-12-06 19:28:39,313 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_free_evtchn [2021-12-06 19:28:39,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 19:28:39,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 19:28:39,313 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_tx_buf_gc [2021-12-06 19:28:39,313 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_tx_buf_gc [2021-12-06 19:28:39,314 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-12-06 19:28:39,314 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-12-06 19:28:39,314 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-06 19:28:39,314 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-06 19:28:39,743 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 19:28:39,745 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 19:28:40,344 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-06 19:28:42,691 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 19:28:42,711 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 19:28:42,711 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 19:28:42,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:28:42 BoogieIcfgContainer [2021-12-06 19:28:42,715 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 19:28:42,716 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 19:28:42,716 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 19:28:42,718 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 19:28:42,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 07:28:36" (1/3) ... [2021-12-06 19:28:42,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@315d649f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:28:42, skipping insertion in model container [2021-12-06 19:28:42,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:28:38" (2/3) ... [2021-12-06 19:28:42,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@315d649f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:28:42, skipping insertion in model container [2021-12-06 19:28:42,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:28:42" (3/3) ... [2021-12-06 19:28:42,720 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i [2021-12-06 19:28:42,724 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 19:28:42,724 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 19:28:42,766 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 19:28:42,771 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 19:28:42,771 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 19:28:42,809 INFO L276 IsEmpty]: Start isEmpty. Operand has 1564 states, 1105 states have (on average 1.3221719457013574) internal successors, (1461), 1140 states have internal predecessors, (1461), 352 states have call successors, (352), 106 states have call predecessors, (352), 105 states have return successors, (343), 340 states have call predecessors, (343), 343 states have call successors, (343) [2021-12-06 19:28:42,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2021-12-06 19:28:42,840 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:28:42,841 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:28:42,842 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:28:42,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:42,846 INFO L85 PathProgramCache]: Analyzing trace with hash -2007704875, now seen corresponding path program 1 times [2021-12-06 19:28:42,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:42,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511918290] [2021-12-06 19:28:42,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:42,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:43,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:28:43,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:43,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:43,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:28:43,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:43,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:43,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:28:43,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:43,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:43,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 19:28:43,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:43,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:43,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 19:28:43,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:43,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 19:28:43,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:43,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:43,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 19:28:43,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:43,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:43,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 19:28:43,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:43,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:43,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-06 19:28:43,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:43,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:43,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-06 19:28:43,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:43,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:43,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-06 19:28:43,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:43,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:43,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 19:28:43,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:43,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:43,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-06 19:28:43,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:43,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:43,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-06 19:28:43,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:43,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:43,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-06 19:28:43,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:43,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:43,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-06 19:28:43,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:43,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:43,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-06 19:28:43,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:43,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-06 19:28:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:43,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-12-06 19:28:43,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:43,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-06 19:28:43,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:43,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-06 19:28:43,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:43,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-12-06 19:28:43,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:43,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-12-06 19:28:43,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:43,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-12-06 19:28:43,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:43,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-12-06 19:28:43,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:43,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-12-06 19:28:43,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2021-12-06 19:28:43,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:43,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:43,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 19:28:43,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:43,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2021-12-06 19:28:44,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:44,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:44,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:44,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2021-12-06 19:28:44,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:44,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:44,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:44,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2021-12-06 19:28:44,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:44,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:44,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:44,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2021-12-06 19:28:44,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:44,075 INFO L134 CoverageAnalysis]: Checked inductivity of 2021 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2021 trivial. 0 not checked. [2021-12-06 19:28:44,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:44,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511918290] [2021-12-06 19:28:44,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511918290] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:28:44,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:28:44,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 19:28:44,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635922239] [2021-12-06 19:28:44,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:28:44,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 19:28:44,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:44,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 19:28:44,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:28:44,109 INFO L87 Difference]: Start difference. First operand has 1564 states, 1105 states have (on average 1.3221719457013574) internal successors, (1461), 1140 states have internal predecessors, (1461), 352 states have call successors, (352), 106 states have call predecessors, (352), 105 states have return successors, (343), 340 states have call predecessors, (343), 343 states have call successors, (343) Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 2 states have internal predecessors, (96), 2 states have call successors, (42), 6 states have call predecessors, (42), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-12-06 19:28:46,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:46,510 INFO L93 Difference]: Finished difference Result 3340 states and 4706 transitions. [2021-12-06 19:28:46,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:28:46,512 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 2 states have internal predecessors, (96), 2 states have call successors, (42), 6 states have call predecessors, (42), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 447 [2021-12-06 19:28:46,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:28:46,536 INFO L225 Difference]: With dead ends: 3340 [2021-12-06 19:28:46,536 INFO L226 Difference]: Without dead ends: 1751 [2021-12-06 19:28:46,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:28:46,551 INFO L933 BasicCegarLoop]: 1918 mSDtfsCounter, 2340 mSDsluCounter, 1477 mSDsCounter, 0 mSdLazyCounter, 1177 mSolverCounterSat, 1975 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2464 SdHoareTripleChecker+Valid, 3395 SdHoareTripleChecker+Invalid, 3152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1975 IncrementalHoareTripleChecker+Valid, 1177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:28:46,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2464 Valid, 3395 Invalid, 3152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1975 Valid, 1177 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-06 19:28:46,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1751 states. [2021-12-06 19:28:46,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1751 to 1537. [2021-12-06 19:28:46,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1537 states, 1089 states have (on average 1.3085399449035813) internal successors, (1425), 1113 states have internal predecessors, (1425), 343 states have call successors, (343), 105 states have call predecessors, (343), 104 states have return successors, (342), 339 states have call predecessors, (342), 342 states have call successors, (342) [2021-12-06 19:28:46,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1537 states to 1537 states and 2110 transitions. [2021-12-06 19:28:46,689 INFO L78 Accepts]: Start accepts. Automaton has 1537 states and 2110 transitions. Word has length 447 [2021-12-06 19:28:46,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:28:46,690 INFO L470 AbstractCegarLoop]: Abstraction has 1537 states and 2110 transitions. [2021-12-06 19:28:46,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 2 states have internal predecessors, (96), 2 states have call successors, (42), 6 states have call predecessors, (42), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-12-06 19:28:46,690 INFO L276 IsEmpty]: Start isEmpty. Operand 1537 states and 2110 transitions. [2021-12-06 19:28:46,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2021-12-06 19:28:46,704 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:28:46,705 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:28:46,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 19:28:46,705 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:28:46,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:46,705 INFO L85 PathProgramCache]: Analyzing trace with hash -498973003, now seen corresponding path program 1 times [2021-12-06 19:28:46,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:46,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896117885] [2021-12-06 19:28:46,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:46,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:46,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:46,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:28:46,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:46,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:46,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:46,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:46,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:46,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:28:46,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:47,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:47,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:28:47,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:47,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:47,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 19:28:47,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:47,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:47,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 19:28:47,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:47,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:47,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 19:28:47,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:47,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:47,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 19:28:47,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:47,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:47,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 19:28:47,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:47,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:47,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-06 19:28:47,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:47,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:47,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-06 19:28:47,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:47,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:47,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-06 19:28:47,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:47,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:47,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 19:28:47,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:47,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:47,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-06 19:28:47,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:47,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:47,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-06 19:28:47,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:47,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:47,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-06 19:28:47,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:47,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-06 19:28:47,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:47,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:47,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-06 19:28:47,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:47,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-06 19:28:47,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:47,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-12-06 19:28:47,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:47,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-06 19:28:47,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-06 19:28:47,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:47,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-12-06 19:28:47,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:47,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-12-06 19:28:47,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:47,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-12-06 19:28:47,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:47,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-12-06 19:28:47,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:47,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-12-06 19:28:47,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2021-12-06 19:28:47,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:47,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:47,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 19:28:47,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2021-12-06 19:28:47,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:47,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2021-12-06 19:28:47,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:47,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2021-12-06 19:28:47,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:47,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2021-12-06 19:28:47,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:47,458 INFO L134 CoverageAnalysis]: Checked inductivity of 2021 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2021 trivial. 0 not checked. [2021-12-06 19:28:47,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:47,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896117885] [2021-12-06 19:28:47,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896117885] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:28:47,459 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:28:47,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:28:47,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930305368] [2021-12-06 19:28:47,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:28:47,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:28:47,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:47,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:28:47,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:28:47,461 INFO L87 Difference]: Start difference. First operand 1537 states and 2110 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (42), 6 states have call predecessors, (42), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-12-06 19:28:51,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:51,361 INFO L93 Difference]: Finished difference Result 4444 states and 6137 transitions. [2021-12-06 19:28:51,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 19:28:51,361 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (42), 6 states have call predecessors, (42), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 447 [2021-12-06 19:28:51,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:28:51,383 INFO L225 Difference]: With dead ends: 4444 [2021-12-06 19:28:51,383 INFO L226 Difference]: Without dead ends: 2966 [2021-12-06 19:28:51,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-12-06 19:28:51,388 INFO L933 BasicCegarLoop]: 2250 mSDtfsCounter, 4695 mSDsluCounter, 2699 mSDsCounter, 0 mSdLazyCounter, 2625 mSolverCounterSat, 3421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4925 SdHoareTripleChecker+Valid, 4949 SdHoareTripleChecker+Invalid, 6046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3421 IncrementalHoareTripleChecker+Valid, 2625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-12-06 19:28:51,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4925 Valid, 4949 Invalid, 6046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3421 Valid, 2625 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2021-12-06 19:28:51,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2966 states. [2021-12-06 19:28:51,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2966 to 2570. [2021-12-06 19:28:51,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2570 states, 1829 states have (on average 1.3078184800437398) internal successors, (2392), 1878 states have internal predecessors, (2392), 555 states have call successors, (555), 188 states have call predecessors, (555), 185 states have return successors, (554), 542 states have call predecessors, (554), 554 states have call successors, (554) [2021-12-06 19:28:51,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2570 states to 2570 states and 3501 transitions. [2021-12-06 19:28:51,493 INFO L78 Accepts]: Start accepts. Automaton has 2570 states and 3501 transitions. Word has length 447 [2021-12-06 19:28:51,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:28:51,494 INFO L470 AbstractCegarLoop]: Abstraction has 2570 states and 3501 transitions. [2021-12-06 19:28:51,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (42), 6 states have call predecessors, (42), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-12-06 19:28:51,494 INFO L276 IsEmpty]: Start isEmpty. Operand 2570 states and 3501 transitions. [2021-12-06 19:28:51,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2021-12-06 19:28:51,499 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:28:51,500 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:28:51,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 19:28:51,500 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:28:51,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:51,500 INFO L85 PathProgramCache]: Analyzing trace with hash -628625941, now seen corresponding path program 1 times [2021-12-06 19:28:51,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:51,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979864345] [2021-12-06 19:28:51,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:51,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:51,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:28:51,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:51,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:51,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:28:51,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:51,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:51,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:28:51,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:51,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:51,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 19:28:51,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:51,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:51,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 19:28:51,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:51,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:51,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 19:28:51,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:51,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:51,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 19:28:51,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:51,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:51,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 19:28:51,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:51,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:51,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-06 19:28:51,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:51,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:51,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-06 19:28:51,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:51,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:51,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-06 19:28:51,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:51,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:51,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 19:28:51,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:51,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:51,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-06 19:28:51,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:51,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:51,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-06 19:28:51,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:51,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:51,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:51,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-06 19:28:51,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:52,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:52,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:52,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:52,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:52,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-06 19:28:52,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:52,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:52,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:52,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:52,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:52,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-06 19:28:52,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:52,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:52,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:52,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-06 19:28:52,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:52,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:52,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:52,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-12-06 19:28:52,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:52,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:52,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:52,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-06 19:28:52,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:52,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:52,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:52,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-06 19:28:52,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:52,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:52,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:52,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-12-06 19:28:52,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:52,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:52,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:52,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-12-06 19:28:52,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:52,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:52,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:52,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-12-06 19:28:52,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:52,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:52,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:52,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-12-06 19:28:52,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:52,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:52,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:52,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2021-12-06 19:28:52,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:52,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2021-12-06 19:28:52,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:52,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2021-12-06 19:28:52,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:52,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2021-12-06 19:28:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:52,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2021-12-06 19:28:52,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:52,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:52,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:52,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2021-12-06 19:28:52,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:52,223 INFO L134 CoverageAnalysis]: Checked inductivity of 2004 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2004 trivial. 0 not checked. [2021-12-06 19:28:52,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:52,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979864345] [2021-12-06 19:28:52,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979864345] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:28:52,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:28:52,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:28:52,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689672568] [2021-12-06 19:28:52,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:28:52,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:28:52,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:52,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:28:52,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:28:52,226 INFO L87 Difference]: Start difference. First operand 2570 states and 3501 transitions. Second operand has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (38), 6 states have call predecessors, (38), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-12-06 19:28:56,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:56,403 INFO L93 Difference]: Finished difference Result 6688 states and 9229 transitions. [2021-12-06 19:28:56,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:28:56,403 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (38), 6 states have call predecessors, (38), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 440 [2021-12-06 19:28:56,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:28:56,425 INFO L225 Difference]: With dead ends: 6688 [2021-12-06 19:28:56,425 INFO L226 Difference]: Without dead ends: 4177 [2021-12-06 19:28:56,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-06 19:28:56,434 INFO L933 BasicCegarLoop]: 2441 mSDtfsCounter, 3132 mSDsluCounter, 4381 mSDsCounter, 0 mSdLazyCounter, 3521 mSolverCounterSat, 2243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3342 SdHoareTripleChecker+Valid, 6822 SdHoareTripleChecker+Invalid, 5764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2243 IncrementalHoareTripleChecker+Valid, 3521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-12-06 19:28:56,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3342 Valid, 6822 Invalid, 5764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2243 Valid, 3521 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2021-12-06 19:28:56,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4177 states. [2021-12-06 19:28:56,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4177 to 3603. [2021-12-06 19:28:56,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3603 states, 2594 states have (on average 1.3211256746337703) internal successors, (3427), 2658 states have internal predecessors, (3427), 742 states have call successors, (742), 269 states have call predecessors, (742), 266 states have return successors, (741), 721 states have call predecessors, (741), 741 states have call successors, (741) [2021-12-06 19:28:56,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3603 states to 3603 states and 4910 transitions. [2021-12-06 19:28:56,578 INFO L78 Accepts]: Start accepts. Automaton has 3603 states and 4910 transitions. Word has length 440 [2021-12-06 19:28:56,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:28:56,579 INFO L470 AbstractCegarLoop]: Abstraction has 3603 states and 4910 transitions. [2021-12-06 19:28:56,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (38), 6 states have call predecessors, (38), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-12-06 19:28:56,579 INFO L276 IsEmpty]: Start isEmpty. Operand 3603 states and 4910 transitions. [2021-12-06 19:28:56,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2021-12-06 19:28:56,586 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:28:56,587 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:28:56,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 19:28:56,587 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:28:56,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:56,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1997284535, now seen corresponding path program 1 times [2021-12-06 19:28:56,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:56,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279436287] [2021-12-06 19:28:56,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:56,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:56,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:56,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:28:56,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:56,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:56,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:56,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:56,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:56,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:28:56,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:56,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:56,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:56,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:56,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:56,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:28:56,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:56,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:56,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:56,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:56,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:56,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 19:28:56,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:56,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:56,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:56,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:56,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:56,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 19:28:56,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:56,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:56,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:56,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:56,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:56,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 19:28:56,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:56,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:56,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:56,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:56,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:56,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 19:28:56,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:56,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:56,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:56,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:56,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:56,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 19:28:56,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:56,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:56,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:56,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:56,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:56,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-06 19:28:56,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:56,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:56,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:56,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:56,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:56,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-06 19:28:56,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:56,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:56,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:56,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:56,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-06 19:28:57,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:57,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:57,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 19:28:57,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:57,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-06 19:28:57,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:57,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:57,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-06 19:28:57,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:57,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:57,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-06 19:28:57,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:57,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:57,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-06 19:28:57,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:57,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:57,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-06 19:28:57,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:57,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-06 19:28:57,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:57,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-12-06 19:28:57,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:57,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-06 19:28:57,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:57,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-06 19:28:57,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:57,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-12-06 19:28:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:57,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-12-06 19:28:57,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:57,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-12-06 19:28:57,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:57,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-12-06 19:28:57,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:57,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-12-06 19:28:57,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:57,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:57,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2021-12-06 19:28:57,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:57,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:57,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2021-12-06 19:28:57,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:57,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:57,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2021-12-06 19:28:57,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:57,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:57,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2021-12-06 19:28:57,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:57,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:57,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 457 [2021-12-06 19:28:57,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:57,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:57,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2021-12-06 19:28:57,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 493 [2021-12-06 19:28:57,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2021-12-06 19:28:57,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 525 [2021-12-06 19:28:57,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 532 [2021-12-06 19:28:57,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:57,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2021-12-06 19:28:57,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:57,410 INFO L134 CoverageAnalysis]: Checked inductivity of 3563 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3558 trivial. 0 not checked. [2021-12-06 19:28:57,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:57,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279436287] [2021-12-06 19:28:57,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279436287] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:28:57,410 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:28:57,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:28:57,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541651182] [2021-12-06 19:28:57,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:28:57,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 19:28:57,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:57,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 19:28:57,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-06 19:28:57,412 INFO L87 Difference]: Start difference. First operand 3603 states and 4910 transitions. Second operand has 8 states, 8 states have (on average 17.0) internal successors, (136), 4 states have internal predecessors, (136), 2 states have call successors, (44), 6 states have call predecessors, (44), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-12-06 19:29:01,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:29:01,183 INFO L93 Difference]: Finished difference Result 7722 states and 10642 transitions. [2021-12-06 19:29:01,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:29:01,183 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.0) internal successors, (136), 4 states have internal predecessors, (136), 2 states have call successors, (44), 6 states have call predecessors, (44), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 558 [2021-12-06 19:29:01,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:29:01,203 INFO L225 Difference]: With dead ends: 7722 [2021-12-06 19:29:01,203 INFO L226 Difference]: Without dead ends: 4170 [2021-12-06 19:29:01,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:29:01,213 INFO L933 BasicCegarLoop]: 1931 mSDtfsCounter, 1522 mSDsluCounter, 5469 mSDsCounter, 0 mSdLazyCounter, 3123 mSolverCounterSat, 1399 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1602 SdHoareTripleChecker+Valid, 7400 SdHoareTripleChecker+Invalid, 4522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1399 IncrementalHoareTripleChecker+Valid, 3123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-12-06 19:29:01,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1602 Valid, 7400 Invalid, 4522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1399 Valid, 3123 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2021-12-06 19:29:01,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4170 states. [2021-12-06 19:29:01,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4170 to 3603. [2021-12-06 19:29:01,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3603 states, 2594 states have (on average 1.3180416345412491) internal successors, (3419), 2658 states have internal predecessors, (3419), 742 states have call successors, (742), 269 states have call predecessors, (742), 266 states have return successors, (741), 721 states have call predecessors, (741), 741 states have call successors, (741) [2021-12-06 19:29:01,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3603 states to 3603 states and 4902 transitions. [2021-12-06 19:29:01,340 INFO L78 Accepts]: Start accepts. Automaton has 3603 states and 4902 transitions. Word has length 558 [2021-12-06 19:29:01,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:29:01,341 INFO L470 AbstractCegarLoop]: Abstraction has 3603 states and 4902 transitions. [2021-12-06 19:29:01,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.0) internal successors, (136), 4 states have internal predecessors, (136), 2 states have call successors, (44), 6 states have call predecessors, (44), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-12-06 19:29:01,341 INFO L276 IsEmpty]: Start isEmpty. Operand 3603 states and 4902 transitions. [2021-12-06 19:29:01,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 565 [2021-12-06 19:29:01,347 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:29:01,347 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:29:01,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 19:29:01,347 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:29:01,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:29:01,348 INFO L85 PathProgramCache]: Analyzing trace with hash -922461304, now seen corresponding path program 1 times [2021-12-06 19:29:01,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:29:01,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109727822] [2021-12-06 19:29:01,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:29:01,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:29:01,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:29:01,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:01,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:01,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:29:01,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:01,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:01,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:29:01,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:01,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:01,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 19:29:01,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:01,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:01,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 19:29:01,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:01,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:01,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 19:29:01,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:01,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:01,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 19:29:01,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:01,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:01,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 19:29:01,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:01,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:01,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-06 19:29:01,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:01,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:01,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-06 19:29:01,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:01,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:01,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-06 19:29:01,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:01,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:01,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 19:29:01,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:01,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:01,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-06 19:29:01,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:01,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:01,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-06 19:29:01,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:01,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:01,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-06 19:29:01,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:01,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:01,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-06 19:29:01,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:01,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:01,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-06 19:29:01,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:01,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-06 19:29:01,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:01,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-12-06 19:29:01,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:01,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-06 19:29:01,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:01,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-06 19:29:01,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:01,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-12-06 19:29:01,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:01,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-12-06 19:29:01,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:01,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-12-06 19:29:01,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:01,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-12-06 19:29:01,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:01,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:01,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2021-12-06 19:29:02,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:02,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:02,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:02,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:02,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:02,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2021-12-06 19:29:02,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:02,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:02,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:02,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:02,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:02,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2021-12-06 19:29:02,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:02,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:02,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:02,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:02,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:02,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2021-12-06 19:29:02,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:02,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:02,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:02,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:02,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:02,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2021-12-06 19:29:02,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:02,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:02,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:02,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:02,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:02,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2021-12-06 19:29:02,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:02,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:02,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:02,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:02,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:02,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2021-12-06 19:29:02,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:02,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 499 [2021-12-06 19:29:02,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:02,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2021-12-06 19:29:02,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:02,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 531 [2021-12-06 19:29:02,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:02,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2021-12-06 19:29:02,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:02,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:02,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:02,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 549 [2021-12-06 19:29:02,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:02,166 INFO L134 CoverageAnalysis]: Checked inductivity of 3563 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3558 trivial. 0 not checked. [2021-12-06 19:29:02,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:29:02,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109727822] [2021-12-06 19:29:02,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109727822] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:29:02,167 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:29:02,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:29:02,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053115816] [2021-12-06 19:29:02,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:29:02,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 19:29:02,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:29:02,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 19:29:02,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-06 19:29:02,169 INFO L87 Difference]: Start difference. First operand 3603 states and 4902 transitions. Second operand has 8 states, 8 states have (on average 17.75) internal successors, (142), 4 states have internal predecessors, (142), 2 states have call successors, (44), 6 states have call predecessors, (44), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-12-06 19:29:08,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:29:08,001 INFO L93 Difference]: Finished difference Result 11704 states and 16172 transitions. [2021-12-06 19:29:08,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 19:29:08,001 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 4 states have internal predecessors, (142), 2 states have call successors, (44), 6 states have call predecessors, (44), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 564 [2021-12-06 19:29:08,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:29:08,037 INFO L225 Difference]: With dead ends: 11704 [2021-12-06 19:29:08,037 INFO L226 Difference]: Without dead ends: 8160 [2021-12-06 19:29:08,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:29:08,048 INFO L933 BasicCegarLoop]: 3509 mSDtfsCounter, 3417 mSDsluCounter, 8455 mSDsCounter, 0 mSdLazyCounter, 5362 mSolverCounterSat, 2133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3717 SdHoareTripleChecker+Valid, 11964 SdHoareTripleChecker+Invalid, 7495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2133 IncrementalHoareTripleChecker+Valid, 5362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-12-06 19:29:08,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3717 Valid, 11964 Invalid, 7495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2133 Valid, 5362 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2021-12-06 19:29:08,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8160 states. [2021-12-06 19:29:08,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8160 to 7029. [2021-12-06 19:29:08,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7029 states, 5069 states have (on average 1.3213651607812191) internal successors, (6698), 5195 states have internal predecessors, (6698), 1435 states have call successors, (1435), 529 states have call predecessors, (1435), 524 states have return successors, (1434), 1396 states have call predecessors, (1434), 1434 states have call successors, (1434) [2021-12-06 19:29:08,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7029 states to 7029 states and 9567 transitions. [2021-12-06 19:29:08,313 INFO L78 Accepts]: Start accepts. Automaton has 7029 states and 9567 transitions. Word has length 564 [2021-12-06 19:29:08,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:29:08,313 INFO L470 AbstractCegarLoop]: Abstraction has 7029 states and 9567 transitions. [2021-12-06 19:29:08,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 4 states have internal predecessors, (142), 2 states have call successors, (44), 6 states have call predecessors, (44), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-12-06 19:29:08,314 INFO L276 IsEmpty]: Start isEmpty. Operand 7029 states and 9567 transitions. [2021-12-06 19:29:08,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 565 [2021-12-06 19:29:08,321 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:29:08,322 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:29:08,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 19:29:08,322 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:29:08,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:29:08,322 INFO L85 PathProgramCache]: Analyzing trace with hash 862941958, now seen corresponding path program 1 times [2021-12-06 19:29:08,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:29:08,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354425473] [2021-12-06 19:29:08,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:29:08,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:29:08,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:29:08,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:08,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:08,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:29:08,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:08,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:08,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:29:08,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:08,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:08,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 19:29:08,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:08,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:08,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 19:29:08,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:08,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:08,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 19:29:08,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:08,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:08,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 19:29:08,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:08,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:08,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 19:29:08,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:08,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:08,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-06 19:29:08,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:08,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:08,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-06 19:29:08,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:08,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:08,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-06 19:29:08,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:08,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:08,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 19:29:08,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:08,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:08,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-06 19:29:08,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:08,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:08,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-06 19:29:08,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:08,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:08,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-06 19:29:08,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:08,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:08,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-06 19:29:08,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:08,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-06 19:29:08,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:08,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-06 19:29:08,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:08,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-12-06 19:29:08,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:08,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-06 19:29:08,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:08,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-06 19:29:08,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:08,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-12-06 19:29:08,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:08,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-12-06 19:29:08,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:08,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-12-06 19:29:08,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:08,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-12-06 19:29:08,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:08,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2021-12-06 19:29:08,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:08,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:08,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2021-12-06 19:29:08,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:08,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:08,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2021-12-06 19:29:08,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:08,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:08,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2021-12-06 19:29:08,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:08,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:08,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2021-12-06 19:29:08,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:08,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:08,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2021-12-06 19:29:08,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:08,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:08,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2021-12-06 19:29:08,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 499 [2021-12-06 19:29:08,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2021-12-06 19:29:08,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 531 [2021-12-06 19:29:08,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2021-12-06 19:29:08,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:08,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:08,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 549 [2021-12-06 19:29:08,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:09,020 INFO L134 CoverageAnalysis]: Checked inductivity of 3563 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3558 trivial. 0 not checked. [2021-12-06 19:29:09,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:29:09,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354425473] [2021-12-06 19:29:09,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354425473] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:29:09,021 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:29:09,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:29:09,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357335404] [2021-12-06 19:29:09,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:29:09,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:29:09,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:29:09,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:29:09,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:29:09,022 INFO L87 Difference]: Start difference. First operand 7029 states and 9567 transitions. Second operand has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 3 states have internal predecessors, (142), 3 states have call successors, (44), 6 states have call predecessors, (44), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2021-12-06 19:29:13,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:29:13,750 INFO L93 Difference]: Finished difference Result 20406 states and 28133 transitions. [2021-12-06 19:29:13,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:29:13,751 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 3 states have internal predecessors, (142), 3 states have call successors, (44), 6 states have call predecessors, (44), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 564 [2021-12-06 19:29:13,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:29:13,806 INFO L225 Difference]: With dead ends: 20406 [2021-12-06 19:29:13,806 INFO L226 Difference]: Without dead ends: 13440 [2021-12-06 19:29:13,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-06 19:29:13,824 INFO L933 BasicCegarLoop]: 2923 mSDtfsCounter, 3882 mSDsluCounter, 3947 mSDsCounter, 0 mSdLazyCounter, 3030 mSolverCounterSat, 2521 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4174 SdHoareTripleChecker+Valid, 6870 SdHoareTripleChecker+Invalid, 5551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2521 IncrementalHoareTripleChecker+Valid, 3030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:29:13,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4174 Valid, 6870 Invalid, 5551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2521 Valid, 3030 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2021-12-06 19:29:13,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13440 states. [2021-12-06 19:29:14,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13440 to 11541. [2021-12-06 19:29:14,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11541 states, 8331 states have (on average 1.3172488296723082) internal successors, (10974), 8541 states have internal predecessors, (10974), 2337 states have call successors, (2337), 877 states have call predecessors, (2337), 872 states have return successors, (2336), 2284 states have call predecessors, (2336), 2336 states have call successors, (2336) [2021-12-06 19:29:14,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11541 states to 11541 states and 15647 transitions. [2021-12-06 19:29:14,168 INFO L78 Accepts]: Start accepts. Automaton has 11541 states and 15647 transitions. Word has length 564 [2021-12-06 19:29:14,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:29:14,168 INFO L470 AbstractCegarLoop]: Abstraction has 11541 states and 15647 transitions. [2021-12-06 19:29:14,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 3 states have internal predecessors, (142), 3 states have call successors, (44), 6 states have call predecessors, (44), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2021-12-06 19:29:14,169 INFO L276 IsEmpty]: Start isEmpty. Operand 11541 states and 15647 transitions. [2021-12-06 19:29:14,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 564 [2021-12-06 19:29:14,175 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:29:14,203 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:29:14,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 19:29:14,203 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:29:14,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:29:14,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1985883345, now seen corresponding path program 1 times [2021-12-06 19:29:14,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:29:14,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247923214] [2021-12-06 19:29:14,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:29:14,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:29:14,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:29:14,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:14,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:14,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:29:14,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:14,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:14,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:29:14,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:14,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:14,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 19:29:14,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:14,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:14,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 19:29:14,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:14,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:14,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 19:29:14,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:14,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:14,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 19:29:14,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:14,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:14,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 19:29:14,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:14,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:14,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-06 19:29:14,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:14,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:14,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-06 19:29:14,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:14,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:14,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-06 19:29:14,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:14,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:14,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 19:29:14,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:14,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:14,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-06 19:29:14,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:14,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:14,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-06 19:29:14,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:14,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:14,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-06 19:29:14,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:14,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:14,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-06 19:29:14,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:14,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:14,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-06 19:29:14,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:14,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-06 19:29:14,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:14,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-12-06 19:29:14,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:14,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-06 19:29:14,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:14,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-06 19:29:14,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:14,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-12-06 19:29:14,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:14,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-12-06 19:29:14,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:14,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-12-06 19:29:14,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:14,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-12-06 19:29:14,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:14,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2021-12-06 19:29:14,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:14,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:14,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2021-12-06 19:29:14,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:14,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:14,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2021-12-06 19:29:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:14,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:14,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:14,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2021-12-06 19:29:14,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:15,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:15,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:15,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:15,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:15,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2021-12-06 19:29:15,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:15,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:15,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:15,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:15,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:15,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2021-12-06 19:29:15,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:15,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:15,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:15,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:15,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:15,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 493 [2021-12-06 19:29:15,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:15,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2021-12-06 19:29:15,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:15,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2021-12-06 19:29:15,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:15,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 530 [2021-12-06 19:29:15,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:15,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 537 [2021-12-06 19:29:15,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:15,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:15,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:15,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 548 [2021-12-06 19:29:15,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:15,096 INFO L134 CoverageAnalysis]: Checked inductivity of 3563 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3563 trivial. 0 not checked. [2021-12-06 19:29:15,096 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:29:15,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247923214] [2021-12-06 19:29:15,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247923214] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:29:15,096 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:29:15,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:29:15,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850496057] [2021-12-06 19:29:15,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:29:15,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:29:15,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:29:15,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:29:15,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:29:15,097 INFO L87 Difference]: Start difference. First operand 11541 states and 15647 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (44), 7 states have call predecessors, (44), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-12-06 19:29:17,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:29:17,678 INFO L93 Difference]: Finished difference Result 14444 states and 19608 transitions. [2021-12-06 19:29:17,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:29:17,678 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (44), 7 states have call predecessors, (44), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 563 [2021-12-06 19:29:17,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:29:17,714 INFO L225 Difference]: With dead ends: 14444 [2021-12-06 19:29:17,714 INFO L226 Difference]: Without dead ends: 14441 [2021-12-06 19:29:17,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-06 19:29:17,720 INFO L933 BasicCegarLoop]: 1959 mSDtfsCounter, 3043 mSDsluCounter, 2055 mSDsCounter, 0 mSdLazyCounter, 1498 mSolverCounterSat, 1733 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3238 SdHoareTripleChecker+Valid, 4014 SdHoareTripleChecker+Invalid, 3231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1733 IncrementalHoareTripleChecker+Valid, 1498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:29:17,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3238 Valid, 4014 Invalid, 3231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1733 Valid, 1498 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-06 19:29:17,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14441 states. [2021-12-06 19:29:18,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14441 to 12513. [2021-12-06 19:29:18,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12513 states, 8985 states have (on average 1.3032832498608793) internal successors, (11710), 9203 states have internal predecessors, (11710), 2453 states have call successors, (2453), 1079 states have call predecessors, (2453), 1074 states have return successors, (2452), 2400 states have call predecessors, (2452), 2452 states have call successors, (2452) [2021-12-06 19:29:18,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12513 states to 12513 states and 16615 transitions. [2021-12-06 19:29:18,101 INFO L78 Accepts]: Start accepts. Automaton has 12513 states and 16615 transitions. Word has length 563 [2021-12-06 19:29:18,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:29:18,102 INFO L470 AbstractCegarLoop]: Abstraction has 12513 states and 16615 transitions. [2021-12-06 19:29:18,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (44), 7 states have call predecessors, (44), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-12-06 19:29:18,102 INFO L276 IsEmpty]: Start isEmpty. Operand 12513 states and 16615 transitions. [2021-12-06 19:29:18,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 637 [2021-12-06 19:29:18,123 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:29:18,124 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:29:18,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 19:29:18,124 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:29:18,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:29:18,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1201945388, now seen corresponding path program 1 times [2021-12-06 19:29:18,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:29:18,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962761700] [2021-12-06 19:29:18,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:29:18,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:29:18,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:29:18,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:18,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:18,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:29:18,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:18,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:18,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:29:18,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:18,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:18,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 19:29:18,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:18,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:18,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 19:29:18,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:18,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:18,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 19:29:18,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:18,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:18,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 19:29:18,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:18,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:18,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 19:29:18,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:18,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:18,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-06 19:29:18,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:18,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:18,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-06 19:29:18,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:18,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:18,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-06 19:29:18,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:18,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:18,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 19:29:18,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:18,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:18,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-06 19:29:18,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:18,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-06 19:29:18,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:18,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:18,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-06 19:29:18,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:18,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:18,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-06 19:29:18,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:18,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:18,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-06 19:29:18,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:18,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-06 19:29:18,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:18,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-12-06 19:29:18,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:18,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-06 19:29:18,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:18,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-06 19:29:18,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:18,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-12-06 19:29:18,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:18,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-12-06 19:29:18,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:18,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-12-06 19:29:18,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:18,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-12-06 19:29:18,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:18,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2021-12-06 19:29:18,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:18,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:18,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2021-12-06 19:29:18,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:18,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:18,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2021-12-06 19:29:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:18,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:18,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2021-12-06 19:29:18,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:18,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2021-12-06 19:29:18,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:18,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:18,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2021-12-06 19:29:18,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:18,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:18,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2021-12-06 19:29:18,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2021-12-06 19:29:18,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 505 [2021-12-06 19:29:18,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:18,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2021-12-06 19:29:18,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2021-12-06 19:29:18,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2021-12-06 19:29:18,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:18,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:18,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 561 [2021-12-06 19:29:18,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 568 [2021-12-06 19:29:18,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:18,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:18,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 19:29:18,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 587 [2021-12-06 19:29:18,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:18,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 598 [2021-12-06 19:29:18,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:18,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 611 [2021-12-06 19:29:18,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:18,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 622 [2021-12-06 19:29:18,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:18,800 INFO L134 CoverageAnalysis]: Checked inductivity of 3899 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3891 trivial. 0 not checked. [2021-12-06 19:29:18,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:29:18,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962761700] [2021-12-06 19:29:18,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962761700] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:29:18,801 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:29:18,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 19:29:18,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238772001] [2021-12-06 19:29:18,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:29:18,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 19:29:18,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:29:18,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 19:29:18,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-06 19:29:18,802 INFO L87 Difference]: Start difference. First operand 12513 states and 16615 transitions. Second operand has 8 states, 8 states have (on average 20.25) internal successors, (162), 3 states have internal predecessors, (162), 3 states have call successors, (55), 7 states have call predecessors, (55), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2021-12-06 19:29:24,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:29:24,800 INFO L93 Difference]: Finished difference Result 34100 states and 45939 transitions. [2021-12-06 19:29:24,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 19:29:24,800 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.25) internal successors, (162), 3 states have internal predecessors, (162), 3 states have call successors, (55), 7 states have call predecessors, (55), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) Word has length 636 [2021-12-06 19:29:24,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:29:24,847 INFO L225 Difference]: With dead ends: 34100 [2021-12-06 19:29:24,847 INFO L226 Difference]: Without dead ends: 21650 [2021-12-06 19:29:24,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2021-12-06 19:29:24,875 INFO L933 BasicCegarLoop]: 2908 mSDtfsCounter, 3916 mSDsluCounter, 5570 mSDsCounter, 0 mSdLazyCounter, 5202 mSolverCounterSat, 2793 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4102 SdHoareTripleChecker+Valid, 8478 SdHoareTripleChecker+Invalid, 7995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2793 IncrementalHoareTripleChecker+Valid, 5202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:29:24,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4102 Valid, 8478 Invalid, 7995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2793 Valid, 5202 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2021-12-06 19:29:24,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21650 states. [2021-12-06 19:29:25,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21650 to 18167. [2021-12-06 19:29:25,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18167 states, 13142 states have (on average 1.3008674478770355) internal successors, (17096), 13470 states have internal predecessors, (17096), 3443 states have call successors, (3443), 1590 states have call predecessors, (3443), 1581 states have return successors, (3442), 3358 states have call predecessors, (3442), 3442 states have call successors, (3442) [2021-12-06 19:29:25,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18167 states to 18167 states and 23981 transitions. [2021-12-06 19:29:25,434 INFO L78 Accepts]: Start accepts. Automaton has 18167 states and 23981 transitions. Word has length 636 [2021-12-06 19:29:25,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:29:25,435 INFO L470 AbstractCegarLoop]: Abstraction has 18167 states and 23981 transitions. [2021-12-06 19:29:25,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.25) internal successors, (162), 3 states have internal predecessors, (162), 3 states have call successors, (55), 7 states have call predecessors, (55), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2021-12-06 19:29:25,435 INFO L276 IsEmpty]: Start isEmpty. Operand 18167 states and 23981 transitions. [2021-12-06 19:29:25,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 657 [2021-12-06 19:29:25,464 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:29:25,465 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:29:25,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 19:29:25,465 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:29:25,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:29:25,465 INFO L85 PathProgramCache]: Analyzing trace with hash 727400918, now seen corresponding path program 1 times [2021-12-06 19:29:25,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:29:25,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96687711] [2021-12-06 19:29:25,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:29:25,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:29:25,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:25,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:29:25,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:25,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:25,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:25,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:25,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:25,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:29:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:25,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:25,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:25,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:25,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:25,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:29:25,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:25,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:25,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:25,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:25,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:25,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 19:29:25,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:26,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:26,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 19:29:26,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:26,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:26,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 19:29:26,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:26,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:26,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 19:29:26,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:26,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:26,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 19:29:26,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:26,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:26,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-06 19:29:26,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:26,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:26,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-06 19:29:26,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:26,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:26,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-06 19:29:26,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:26,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:26,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 19:29:26,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:26,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:26,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-06 19:29:26,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:26,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:26,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-06 19:29:26,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:26,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:26,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-06 19:29:26,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:26,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:26,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-06 19:29:26,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:26,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:26,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-06 19:29:26,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:26,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-06 19:29:26,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:26,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-12-06 19:29:26,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:26,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-06 19:29:26,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:26,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-06 19:29:26,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:26,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-12-06 19:29:26,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:26,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-12-06 19:29:26,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:26,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-12-06 19:29:26,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:26,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-12-06 19:29:26,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:26,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2021-12-06 19:29:26,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:26,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:26,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2021-12-06 19:29:26,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:26,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:26,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2021-12-06 19:29:26,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:26,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:26,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2021-12-06 19:29:26,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:26,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:26,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2021-12-06 19:29:26,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:26,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:26,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2021-12-06 19:29:26,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:26,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:26,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2021-12-06 19:29:26,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2021-12-06 19:29:26,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 505 [2021-12-06 19:29:26,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:26,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2021-12-06 19:29:26,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2021-12-06 19:29:26,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2021-12-06 19:29:26,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:26,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:26,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 581 [2021-12-06 19:29:26,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 588 [2021-12-06 19:29:26,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:26,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:26,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 19:29:26,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2021-12-06 19:29:26,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:26,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 618 [2021-12-06 19:29:26,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:26,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2021-12-06 19:29:26,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:26,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 642 [2021-12-06 19:29:26,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:26,747 INFO L134 CoverageAnalysis]: Checked inductivity of 3919 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 3903 trivial. 0 not checked. [2021-12-06 19:29:26,747 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:29:26,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96687711] [2021-12-06 19:29:26,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96687711] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:29:26,747 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:29:26,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-12-06 19:29:26,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892756917] [2021-12-06 19:29:26,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:29:26,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-06 19:29:26,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:29:26,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-06 19:29:26,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2021-12-06 19:29:26,749 INFO L87 Difference]: Start difference. First operand 18167 states and 23981 transitions. Second operand has 18 states, 16 states have (on average 10.6875) internal successors, (171), 10 states have internal predecessors, (171), 4 states have call successors, (55), 7 states have call predecessors, (55), 4 states have return successors, (52), 5 states have call predecessors, (52), 4 states have call successors, (52) [2021-12-06 19:29:37,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:29:37,729 INFO L93 Difference]: Finished difference Result 43687 states and 59508 transitions. [2021-12-06 19:29:37,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-06 19:29:37,730 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 10.6875) internal successors, (171), 10 states have internal predecessors, (171), 4 states have call successors, (55), 7 states have call predecessors, (55), 4 states have return successors, (52), 5 states have call predecessors, (52), 4 states have call successors, (52) Word has length 656 [2021-12-06 19:29:37,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:29:37,825 INFO L225 Difference]: With dead ends: 43687 [2021-12-06 19:29:37,825 INFO L226 Difference]: Without dead ends: 25583 [2021-12-06 19:29:37,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=155, Invalid=775, Unknown=0, NotChecked=0, Total=930 [2021-12-06 19:29:37,849 INFO L933 BasicCegarLoop]: 2361 mSDtfsCounter, 3890 mSDsluCounter, 22896 mSDsCounter, 0 mSdLazyCounter, 12631 mSolverCounterSat, 2559 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4012 SdHoareTripleChecker+Valid, 25257 SdHoareTripleChecker+Invalid, 15190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2559 IncrementalHoareTripleChecker+Valid, 12631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2021-12-06 19:29:37,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4012 Valid, 25257 Invalid, 15190 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2559 Valid, 12631 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2021-12-06 19:29:37,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25583 states. [2021-12-06 19:29:38,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25583 to 18191. [2021-12-06 19:29:38,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18191 states, 13160 states have (on average 1.3004559270516718) internal successors, (17114), 13488 states have internal predecessors, (17114), 3449 states have call successors, (3449), 1590 states have call predecessors, (3449), 1581 states have return successors, (3448), 3364 states have call predecessors, (3448), 3448 states have call successors, (3448) [2021-12-06 19:29:38,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18191 states to 18191 states and 24011 transitions. [2021-12-06 19:29:38,415 INFO L78 Accepts]: Start accepts. Automaton has 18191 states and 24011 transitions. Word has length 656 [2021-12-06 19:29:38,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:29:38,415 INFO L470 AbstractCegarLoop]: Abstraction has 18191 states and 24011 transitions. [2021-12-06 19:29:38,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 10.6875) internal successors, (171), 10 states have internal predecessors, (171), 4 states have call successors, (55), 7 states have call predecessors, (55), 4 states have return successors, (52), 5 states have call predecessors, (52), 4 states have call successors, (52) [2021-12-06 19:29:38,416 INFO L276 IsEmpty]: Start isEmpty. Operand 18191 states and 24011 transitions. [2021-12-06 19:29:38,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 677 [2021-12-06 19:29:38,443 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:29:38,443 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:29:38,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 19:29:38,443 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:29:38,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:29:38,444 INFO L85 PathProgramCache]: Analyzing trace with hash 395320594, now seen corresponding path program 1 times [2021-12-06 19:29:38,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:29:38,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837472230] [2021-12-06 19:29:38,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:29:38,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:29:38,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:29:38,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:38,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:38,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:29:38,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:38,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:38,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:29:38,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:38,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:38,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 19:29:38,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:38,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:38,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 19:29:38,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:38,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:38,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 19:29:38,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:38,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:38,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 19:29:38,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:38,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:38,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 19:29:38,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:38,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:38,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-06 19:29:38,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:38,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:38,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-06 19:29:38,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:38,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:38,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-06 19:29:38,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:38,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:38,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 19:29:38,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:38,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:38,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-06 19:29:38,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:38,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:38,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-06 19:29:38,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:38,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:38,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-06 19:29:38,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:38,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:38,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-06 19:29:38,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:38,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:38,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-06 19:29:38,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:38,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-06 19:29:38,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:38,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:38,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-12-06 19:29:39,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:39,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-06 19:29:39,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:39,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-06 19:29:39,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:39,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-12-06 19:29:39,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:39,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-12-06 19:29:39,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:39,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-12-06 19:29:39,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:39,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-12-06 19:29:39,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:39,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2021-12-06 19:29:39,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:39,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:39,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2021-12-06 19:29:39,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:39,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:39,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2021-12-06 19:29:39,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:39,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:39,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2021-12-06 19:29:39,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:39,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:39,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2021-12-06 19:29:39,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:39,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:39,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2021-12-06 19:29:39,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:39,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:39,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 493 [2021-12-06 19:29:39,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2021-12-06 19:29:39,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2021-12-06 19:29:39,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 530 [2021-12-06 19:29:39,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 537 [2021-12-06 19:29:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:39,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 548 [2021-12-06 19:29:39,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2021-12-06 19:29:39,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 564 [2021-12-06 19:29:39,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 571 [2021-12-06 19:29:39,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 578 [2021-12-06 19:29:39,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 586 [2021-12-06 19:29:39,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:39,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:39,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 19:29:39,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 19:29:39,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-06 19:29:39,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 19:29:39,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 630 [2021-12-06 19:29:39,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 638 [2021-12-06 19:29:39,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:39,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 651 [2021-12-06 19:29:39,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:39,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 662 [2021-12-06 19:29:39,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:39,291 INFO L134 CoverageAnalysis]: Checked inductivity of 3598 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3598 trivial. 0 not checked. [2021-12-06 19:29:39,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:29:39,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837472230] [2021-12-06 19:29:39,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837472230] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:29:39,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:29:39,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 19:29:39,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771470232] [2021-12-06 19:29:39,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:29:39,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 19:29:39,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:29:39,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 19:29:39,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:29:39,293 INFO L87 Difference]: Start difference. First operand 18191 states and 24011 transitions. Second operand has 10 states, 10 states have (on average 20.0) internal successors, (200), 5 states have internal predecessors, (200), 2 states have call successors, (61), 7 states have call predecessors, (61), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2021-12-06 19:29:44,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:29:44,355 INFO L93 Difference]: Finished difference Result 42903 states and 58043 transitions. [2021-12-06 19:29:44,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-06 19:29:44,356 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 20.0) internal successors, (200), 5 states have internal predecessors, (200), 2 states have call successors, (61), 7 states have call predecessors, (61), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 676 [2021-12-06 19:29:44,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:29:44,417 INFO L225 Difference]: With dead ends: 42903 [2021-12-06 19:29:44,417 INFO L226 Difference]: Without dead ends: 24775 [2021-12-06 19:29:44,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=96, Invalid=366, Unknown=0, NotChecked=0, Total=462 [2021-12-06 19:29:44,444 INFO L933 BasicCegarLoop]: 1971 mSDtfsCounter, 2983 mSDsluCounter, 6372 mSDsCounter, 0 mSdLazyCounter, 5072 mSolverCounterSat, 2490 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3101 SdHoareTripleChecker+Valid, 8343 SdHoareTripleChecker+Invalid, 7562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2490 IncrementalHoareTripleChecker+Valid, 5072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:29:44,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3101 Valid, 8343 Invalid, 7562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2490 Valid, 5072 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2021-12-06 19:29:44,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24775 states. [2021-12-06 19:29:45,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24775 to 18215. [2021-12-06 19:29:45,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18215 states, 13184 states have (on average 1.2999089805825244) internal successors, (17138), 13512 states have internal predecessors, (17138), 3449 states have call successors, (3449), 1590 states have call predecessors, (3449), 1581 states have return successors, (3448), 3364 states have call predecessors, (3448), 3448 states have call successors, (3448) [2021-12-06 19:29:45,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18215 states to 18215 states and 24035 transitions. [2021-12-06 19:29:45,062 INFO L78 Accepts]: Start accepts. Automaton has 18215 states and 24035 transitions. Word has length 676 [2021-12-06 19:29:45,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:29:45,063 INFO L470 AbstractCegarLoop]: Abstraction has 18215 states and 24035 transitions. [2021-12-06 19:29:45,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 20.0) internal successors, (200), 5 states have internal predecessors, (200), 2 states have call successors, (61), 7 states have call predecessors, (61), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2021-12-06 19:29:45,063 INFO L276 IsEmpty]: Start isEmpty. Operand 18215 states and 24035 transitions. [2021-12-06 19:29:45,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 689 [2021-12-06 19:29:45,087 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:29:45,087 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:29:45,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 19:29:45,088 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:29:45,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:29:45,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1648921529, now seen corresponding path program 1 times [2021-12-06 19:29:45,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:29:45,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617077710] [2021-12-06 19:29:45,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:29:45,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:29:45,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:29:45,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:45,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:29:45,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:45,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:29:45,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:45,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 19:29:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:45,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 19:29:45,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:45,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 19:29:45,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:45,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 19:29:45,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:45,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 19:29:45,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:45,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-06 19:29:45,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:45,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-06 19:29:45,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:45,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-06 19:29:45,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:45,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 19:29:45,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:45,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-06 19:29:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:45,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-06 19:29:45,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:45,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-06 19:29:45,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:45,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-06 19:29:45,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:45,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-06 19:29:45,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-06 19:29:45,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-12-06 19:29:45,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-06 19:29:45,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-06 19:29:45,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-12-06 19:29:45,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-12-06 19:29:45,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-12-06 19:29:45,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-12-06 19:29:45,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2021-12-06 19:29:45,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:45,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2021-12-06 19:29:45,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:45,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2021-12-06 19:29:45,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:45,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2021-12-06 19:29:45,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:45,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2021-12-06 19:29:45,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:45,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2021-12-06 19:29:45,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:45,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2021-12-06 19:29:45,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2021-12-06 19:29:45,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2021-12-06 19:29:45,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2021-12-06 19:29:45,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 531 [2021-12-06 19:29:45,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 537 [2021-12-06 19:29:45,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 548 [2021-12-06 19:29:45,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 553 [2021-12-06 19:29:45,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2021-12-06 19:29:45,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:45,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 613 [2021-12-06 19:29:45,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 620 [2021-12-06 19:29:45,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:45,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 19:29:45,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 639 [2021-12-06 19:29:45,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 650 [2021-12-06 19:29:45,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 663 [2021-12-06 19:29:45,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:45,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 674 [2021-12-06 19:29:45,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:45,899 INFO L134 CoverageAnalysis]: Checked inductivity of 3942 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 3922 trivial. 0 not checked. [2021-12-06 19:29:45,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:29:45,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617077710] [2021-12-06 19:29:45,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617077710] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:29:45,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671533177] [2021-12-06 19:29:45,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:29:45,900 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:29:45,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:29:45,901 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:29:45,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 19:29:46,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:46,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 5225 conjuncts, 25 conjunts are in the unsatisfiable core [2021-12-06 19:29:46,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:29:47,017 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 7 treesize of output 6 [2021-12-06 19:29:59,242 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 16 treesize of output 12 [2021-12-06 19:29:59,318 INFO L134 CoverageAnalysis]: Checked inductivity of 3942 backedges. 264 proven. 0 refuted. 0 times theorem prover too weak. 3678 trivial. 0 not checked. [2021-12-06 19:29:59,318 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:29:59,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671533177] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:29:59,319 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 19:29:59,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 20 [2021-12-06 19:29:59,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204654738] [2021-12-06 19:29:59,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:29:59,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 19:29:59,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:29:59,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 19:29:59,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=330, Unknown=3, NotChecked=0, Total=380 [2021-12-06 19:29:59,321 INFO L87 Difference]: Start difference. First operand 18215 states and 24035 transitions. Second operand has 11 states, 11 states have (on average 17.454545454545453) internal successors, (192), 9 states have internal predecessors, (192), 4 states have call successors, (60), 3 states have call predecessors, (60), 5 states have return successors, (58), 6 states have call predecessors, (58), 4 states have call successors, (58) [2021-12-06 19:30:04,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:30:04,074 INFO L93 Difference]: Finished difference Result 43239 states and 57383 transitions. [2021-12-06 19:30:04,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-06 19:30:04,075 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 17.454545454545453) internal successors, (192), 9 states have internal predecessors, (192), 4 states have call successors, (60), 3 states have call predecessors, (60), 5 states have return successors, (58), 6 states have call predecessors, (58), 4 states have call successors, (58) Word has length 688 [2021-12-06 19:30:04,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:30:04,131 INFO L225 Difference]: With dead ends: 43239 [2021-12-06 19:30:04,131 INFO L226 Difference]: Without dead ends: 25087 [2021-12-06 19:30:04,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 922 GetRequests, 893 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=98, Invalid=655, Unknown=3, NotChecked=0, Total=756 [2021-12-06 19:30:04,156 INFO L933 BasicCegarLoop]: 2516 mSDtfsCounter, 847 mSDsluCounter, 15868 mSDsCounter, 0 mSdLazyCounter, 2872 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 18384 SdHoareTripleChecker+Invalid, 3229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 337 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-12-06 19:30:04,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [847 Valid, 18384 Invalid, 3229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2872 Invalid, 0 Unknown, 337 Unchecked, 3.9s Time] [2021-12-06 19:30:04,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25087 states. [2021-12-06 19:30:04,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25087 to 24439. [2021-12-06 19:30:04,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24439 states, 18102 states have (on average 1.3258755938570324) internal successors, (24001), 18566 states have internal predecessors, (24001), 4297 states have call successors, (4297), 2072 states have call predecessors, (4297), 2039 states have return successors, (4362), 4070 states have call predecessors, (4362), 4296 states have call successors, (4362) [2021-12-06 19:30:04,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24439 states to 24439 states and 32660 transitions. [2021-12-06 19:30:04,891 INFO L78 Accepts]: Start accepts. Automaton has 24439 states and 32660 transitions. Word has length 688 [2021-12-06 19:30:04,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:30:04,891 INFO L470 AbstractCegarLoop]: Abstraction has 24439 states and 32660 transitions. [2021-12-06 19:30:04,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 17.454545454545453) internal successors, (192), 9 states have internal predecessors, (192), 4 states have call successors, (60), 3 states have call predecessors, (60), 5 states have return successors, (58), 6 states have call predecessors, (58), 4 states have call successors, (58) [2021-12-06 19:30:04,892 INFO L276 IsEmpty]: Start isEmpty. Operand 24439 states and 32660 transitions. [2021-12-06 19:30:04,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 709 [2021-12-06 19:30:04,924 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:30:04,924 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 9, 9, 9, 9, 9, 9, 9, 9, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:30:04,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 19:30:05,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:30:05,126 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:30:05,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:30:05,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1505230308, now seen corresponding path program 1 times [2021-12-06 19:30:05,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:30:05,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223404736] [2021-12-06 19:30:05,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:30:05,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:30:05,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:30:05,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:05,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:30:05,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:30:05,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:05,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:30:05,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:30:05,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:05,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:30:05,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 19:30:05,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:05,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:30:05,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 19:30:05,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:05,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:30:05,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 19:30:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:05,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:30:05,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 19:30:05,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:05,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:30:05,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 19:30:05,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:05,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:30:05,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-06 19:30:05,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:05,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:30:05,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-06 19:30:05,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:05,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:30:05,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-06 19:30:05,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:05,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:30:05,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 19:30:05,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:05,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:30:05,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-06 19:30:05,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:05,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:30:05,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-06 19:30:05,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:05,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:30:05,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-06 19:30:05,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:05,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:30:05,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-06 19:30:05,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:05,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:30:05,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-06 19:30:05,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:05,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-06 19:30:05,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-12-06 19:30:05,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:05,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-06 19:30:05,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:05,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-06 19:30:05,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:05,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-12-06 19:30:05,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:05,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-12-06 19:30:05,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:05,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-12-06 19:30:05,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:05,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-12-06 19:30:05,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:05,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2021-12-06 19:30:05,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:05,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:30:05,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2021-12-06 19:30:05,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:05,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:30:05,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2021-12-06 19:30:05,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:05,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:30:05,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2021-12-06 19:30:05,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:05,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:30:05,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2021-12-06 19:30:05,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:05,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:30:05,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2021-12-06 19:30:05,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:05,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:30:05,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2021-12-06 19:30:05,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2021-12-06 19:30:05,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2021-12-06 19:30:05,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:05,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2021-12-06 19:30:05,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:05,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 531 [2021-12-06 19:30:05,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 537 [2021-12-06 19:30:05,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:05,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 548 [2021-12-06 19:30:05,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 553 [2021-12-06 19:30:05,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2021-12-06 19:30:05,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:05,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:30:05,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 606 [2021-12-06 19:30:05,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 613 [2021-12-06 19:30:05,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 633 [2021-12-06 19:30:05,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 640 [2021-12-06 19:30:05,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:05,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:30:05,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 19:30:05,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 659 [2021-12-06 19:30:05,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:05,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:05,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 670 [2021-12-06 19:30:05,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:06,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:06,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:06,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 683 [2021-12-06 19:30:06,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:06,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:30:06,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:06,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 694 [2021-12-06 19:30:06,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:06,041 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 3936 trivial. 0 not checked. [2021-12-06 19:30:06,041 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:30:06,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223404736] [2021-12-06 19:30:06,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223404736] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:30:06,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283085431] [2021-12-06 19:30:06,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:30:06,041 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:30:06,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:30:06,042 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:30:06,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 19:30:06,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:30:06,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 5337 conjuncts, 243 conjunts are in the unsatisfiable core [2021-12-06 19:30:06,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:30:07,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2021-12-06 19:30:07,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2021-12-06 19:30:07,470 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 [2021-12-06 19:30:07,506 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 [2021-12-06 19:30:07,544 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-06 19:30:07,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-12-06 19:30:07,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2021-12-06 19:30:07,586 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 [2021-12-06 19:30:07,606 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 [2021-12-06 19:30:07,644 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-06 19:30:07,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-12-06 19:30:07,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2021-12-06 19:30:07,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 9 [2021-12-06 19:30:07,716 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 7 treesize of output 6 [2021-12-06 19:30:07,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 9 [2021-12-06 19:30:08,006 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-06 19:30:08,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-12-06 19:30:08,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 19:30:08,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:30:08,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2021-12-06 19:30:08,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 19:30:08,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:30:08,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2021-12-06 19:30:08,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 19:30:09,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 19:30:09,104 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2021-12-06 19:30:09,138 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2021-12-06 19:30:09,144 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 [2021-12-06 19:30:09,151 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 0 case distinctions, treesize of input 13 treesize of output 15 [2021-12-06 19:30:16,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 6 treesize of output 4 [2021-12-06 19:30:16,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2021-12-06 19:30:16,757 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 0 case distinctions, treesize of input 27 treesize of output 27 [2021-12-06 19:30:20,999 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 31 treesize of output 19 [2021-12-06 19:30:21,021 INFO L354 Elim1Store]: treesize reduction 21, result has 46.2 percent of original size [2021-12-06 19:30:21,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 38 [2021-12-06 19:30:21,032 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 19:30:21,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 31 [2021-12-06 19:30:21,059 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 10 treesize of output 9 [2021-12-06 19:30:27,419 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 19:30:27,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 27 treesize of output 31 [2021-12-06 19:30:27,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 19:30:27,698 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 7 treesize of output 6 [2021-12-06 19:30:27,700 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 5 treesize of output 3 [2021-12-06 19:30:39,908 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-12-06 19:30:39,909 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2021-12-06 19:30:39,919 INFO L354 Elim1Store]: treesize reduction 20, result has 31.0 percent of original size [2021-12-06 19:30:39,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 43 [2021-12-06 19:31:02,485 WARN L227 SmtUtils]: Spent 6.83s on a formula simplification. DAG size of input: 40 DAG size of output: 27 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-06 19:31:08,749 INFO L354 Elim1Store]: treesize reduction 24, result has 56.4 percent of original size [2021-12-06 19:31:08,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 95 treesize of output 110 [2021-12-06 19:31:08,833 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 22 treesize of output 21 [2021-12-06 19:31:08,903 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 21 treesize of output 20 [2021-12-06 19:34:22,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 30 [2021-12-06 19:34:22,975 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Should have been eliminated by DER [2021-12-06 19:34:22,975 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-12-06 19:34:22,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-12-06 19:34:22,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598914991] [2021-12-06 19:34:22,976 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-12-06 19:34:22,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 19:34:22,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:34:22,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 19:34:22,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=315, Invalid=4449, Unknown=66, NotChecked=0, Total=4830 [2021-12-06 19:34:22,978 INFO L87 Difference]: Start difference. First operand 24439 states and 32660 transitions. Second operand has 11 states, 11 states have (on average 17.90909090909091) internal successors, (197), 5 states have internal predecessors, (197), 2 states have call successors, (61), 7 states have call predecessors, (61), 2 states have return successors, (58), 3 states have call predecessors, (58), 2 states have call successors, (58) [2021-12-06 19:34:22,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 19:34:22,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 868 GetRequests, 787 SyntacticMatches, 13 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1948 ImplicationChecksByTransitivity, 138.0s TimeCoverageRelationStatistics Valid=315, Invalid=4449, Unknown=66, NotChecked=0, Total=4830 [2021-12-06 19:34:22,980 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 [2021-12-06 19:34:22,980 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] [2021-12-06 19:34:23,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 19:34:23,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:34:23,183 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.smtlibutils.IncrementalPlicationChecker@4a2154 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) [2021-12-06 19:34:23,191 INFO L158 Benchmark]: Toolchain (without parser) took 346597.89ms. Allocated memory was 96.5MB in the beginning and 1.0GB in the end (delta: 929.0MB). Free memory was 67.6MB in the beginning and 371.3MB in the end (delta: -303.7MB). Peak memory consumption was 624.3MB. Max. memory is 16.1GB. [2021-12-06 19:34:23,192 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 96.5MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:34:23,193 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2282.31ms. Allocated memory was 96.5MB in the beginning and 153.1MB in the end (delta: 56.6MB). Free memory was 67.6MB in the beginning and 56.3MB in the end (delta: 11.3MB). Peak memory consumption was 72.4MB. Max. memory is 16.1GB. [2021-12-06 19:34:23,194 INFO L158 Benchmark]: Boogie Procedure Inliner took 187.18ms. Allocated memory is still 153.1MB. Free memory was 56.3MB in the beginning and 67.1MB in the end (delta: -10.8MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2021-12-06 19:34:23,195 INFO L158 Benchmark]: Boogie Preprocessor took 172.60ms. Allocated memory is still 153.1MB. Free memory was 67.1MB in the beginning and 65.5MB in the end (delta: 1.6MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. [2021-12-06 19:34:23,196 INFO L158 Benchmark]: RCFGBuilder took 3477.03ms. Allocated memory was 153.1MB in the beginning and 400.6MB in the end (delta: 247.5MB). Free memory was 65.5MB in the beginning and 123.2MB in the end (delta: -57.6MB). Peak memory consumption was 235.8MB. Max. memory is 16.1GB. [2021-12-06 19:34:23,197 INFO L158 Benchmark]: TraceAbstraction took 340474.14ms. Allocated memory was 400.6MB in the beginning and 1.0GB in the end (delta: 625.0MB). Free memory was 122.1MB in the beginning and 371.3MB in the end (delta: -249.2MB). Peak memory consumption was 374.7MB. Max. memory is 16.1GB. [2021-12-06 19:34:23,202 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 96.5MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2282.31ms. Allocated memory was 96.5MB in the beginning and 153.1MB in the end (delta: 56.6MB). Free memory was 67.6MB in the beginning and 56.3MB in the end (delta: 11.3MB). Peak memory consumption was 72.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 187.18ms. Allocated memory is still 153.1MB. Free memory was 56.3MB in the beginning and 67.1MB in the end (delta: -10.8MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 172.60ms. Allocated memory is still 153.1MB. Free memory was 67.1MB in the beginning and 65.5MB in the end (delta: 1.6MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. * RCFGBuilder took 3477.03ms. Allocated memory was 153.1MB in the beginning and 400.6MB in the end (delta: 247.5MB). Free memory was 65.5MB in the beginning and 123.2MB in the end (delta: -57.6MB). Peak memory consumption was 235.8MB. Max. memory is 16.1GB. * TraceAbstraction took 340474.14ms. Allocated memory was 400.6MB in the beginning and 1.0GB in the end (delta: 625.0MB). Free memory was 122.1MB in the beginning and 371.3MB in the end (delta: -249.2MB). Peak memory consumption was 374.7MB. 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.smtlibutils.IncrementalPlicationChecker@4a2154 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@4a2154: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-06 19:34:23,422 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-12-06 19:34:23,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 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_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/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_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/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_46cb3788-39d1-4bdc-82f7-2510e03be17c/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 283b2978ab7cc2aad6d9ef5bd7f2056001c273cafa889d9023ed11b9be13f4c5 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 19:34:24,814 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 19:34:24,816 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 19:34:24,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 19:34:24,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 19:34:24,841 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 19:34:24,843 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 19:34:24,845 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 19:34:24,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 19:34:24,847 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 19:34:24,848 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 19:34:24,849 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 19:34:24,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 19:34:24,851 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 19:34:24,852 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 19:34:24,853 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 19:34:24,854 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 19:34:24,855 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 19:34:24,857 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 19:34:24,859 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 19:34:24,860 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 19:34:24,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 19:34:24,863 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 19:34:24,863 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 19:34:24,866 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 19:34:24,867 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 19:34:24,867 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 19:34:24,868 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 19:34:24,868 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 19:34:24,869 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 19:34:24,869 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 19:34:24,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 19:34:24,871 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 19:34:24,871 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 19:34:24,872 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 19:34:24,873 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 19:34:24,873 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 19:34:24,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 19:34:24,874 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 19:34:24,875 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 19:34:24,875 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 19:34:24,876 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-12-06 19:34:24,898 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 19:34:24,899 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 19:34:24,899 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 19:34:24,899 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 19:34:24,900 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 19:34:24,900 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 19:34:24,901 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 19:34:24,901 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 19:34:24,901 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 19:34:24,901 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 19:34:24,902 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 19:34:24,902 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 19:34:24,902 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 19:34:24,902 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 19:34:24,902 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 19:34:24,903 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-06 19:34:24,903 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-06 19:34:24,903 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 19:34:24,903 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 19:34:24,903 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 19:34:24,904 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 19:34:24,904 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 19:34:24,904 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 19:34:24,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:34:24,904 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 19:34:24,905 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 19:34:24,905 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 19:34:24,905 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-06 19:34:24,905 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-06 19:34:24,905 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 19:34:24,906 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 19:34:24,906 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 19:34:24,906 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 19:34:24,906 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-06 19:34:24,906 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_46cb3788-39d1-4bdc-82f7-2510e03be17c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 283b2978ab7cc2aad6d9ef5bd7f2056001c273cafa889d9023ed11b9be13f4c5 [2021-12-06 19:34:25,153 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 19:34:25,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 19:34:25,171 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 19:34:25,171 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 19:34:25,172 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 19:34:25,173 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i [2021-12-06 19:34:25,215 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/data/d8b44c176/aac337b2b4fb461db7a8604bccf25cf2/FLAG66b9a1088 [2021-12-06 19:34:25,851 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 19:34:25,852 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i [2021-12-06 19:34:25,880 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/data/d8b44c176/aac337b2b4fb461db7a8604bccf25cf2/FLAG66b9a1088 [2021-12-06 19:34:26,196 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/data/d8b44c176/aac337b2b4fb461db7a8604bccf25cf2 [2021-12-06 19:34:26,198 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 19:34:26,199 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 19:34:26,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 19:34:26,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 19:34:26,203 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 19:34:26,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:34:26" (1/1) ... [2021-12-06 19:34:26,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61e64f30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:26, skipping insertion in model container [2021-12-06 19:34:26,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:34:26" (1/1) ... [2021-12-06 19:34:26,209 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 19:34:26,291 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 19:34:28,085 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_46cb3788-39d1-4bdc-82f7-2510e03be17c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i[319471,319484] [2021-12-06 19:34:28,138 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:34:28,162 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-06 19:34:28,224 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 19:34:28,434 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_46cb3788-39d1-4bdc-82f7-2510e03be17c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i[319471,319484] [2021-12-06 19:34:28,443 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:34:28,469 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 19:34:28,826 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_46cb3788-39d1-4bdc-82f7-2510e03be17c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i[319471,319484] [2021-12-06 19:34:28,835 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:34:28,975 INFO L208 MainTranslator]: Completed translation [2021-12-06 19:34:28,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:28 WrapperNode [2021-12-06 19:34:28,975 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 19:34:28,976 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 19:34:28,976 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 19:34:28,976 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 19:34:28,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:28" (1/1) ... [2021-12-06 19:34:29,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:28" (1/1) ... [2021-12-06 19:34:29,167 INFO L137 Inliner]: procedures = 350, calls = 1905, calls flagged for inlining = 163, calls inlined = 135, statements flattened = 4470 [2021-12-06 19:34:29,167 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 19:34:29,168 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 19:34:29,168 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 19:34:29,168 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 19:34:29,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:28" (1/1) ... [2021-12-06 19:34:29,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:28" (1/1) ... [2021-12-06 19:34:29,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:28" (1/1) ... [2021-12-06 19:34:29,192 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:28" (1/1) ... [2021-12-06 19:34:29,282 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:28" (1/1) ... [2021-12-06 19:34:29,301 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:28" (1/1) ... [2021-12-06 19:34:29,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:28" (1/1) ... [2021-12-06 19:34:29,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 19:34:29,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 19:34:29,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 19:34:29,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 19:34:29,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:28" (1/1) ... [2021-12-06 19:34:29,353 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:34:29,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:34:29,376 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 19:34:29,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 19:34:29,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-12-06 19:34:29,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-12-06 19:34:29,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-06 19:34:29,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-06 19:34:29,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-12-06 19:34:29,405 INFO L130 BoogieDeclarations]: Found specification of procedure get_page [2021-12-06 19:34:29,405 INFO L138 BoogieDeclarations]: Found implementation of procedure get_page [2021-12-06 19:34:29,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-06 19:34:29,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-06 19:34:29,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-06 19:34:29,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-06 19:34:29,405 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-06 19:34:29,405 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-12-06 19:34:29,405 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-12-06 19:34:29,405 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_change_mtu [2021-12-06 19:34:29,406 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_change_mtu [2021-12-06 19:34:29,406 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-12-06 19:34:29,406 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-12-06 19:34:29,406 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_write [2021-12-06 19:34:29,406 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_write [2021-12-06 19:34:29,406 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-06 19:34:29,406 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-06 19:34:29,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-06 19:34:29,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-06 19:34:29,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-06 19:34:29,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-06 19:34:29,406 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-12-06 19:34:29,407 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-12-06 19:34:29,407 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_irq [2021-12-06 19:34:29,407 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_irq [2021-12-06 19:34:29,407 INFO L130 BoogieDeclarations]: Found specification of procedure bind_evtchn_to_irqhandler [2021-12-06 19:34:29,407 INFO L138 BoogieDeclarations]: Found implementation of procedure bind_evtchn_to_irqhandler [2021-12-06 19:34:29,407 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2021-12-06 19:34:29,407 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2021-12-06 19:34:29,407 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_remove [2021-12-06 19:34:29,407 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_remove [2021-12-06 19:34:29,407 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_percpu [2021-12-06 19:34:29,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_percpu [2021-12-06 19:34:29,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-06 19:34:29,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-06 19:34:29,408 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_make_txreqs [2021-12-06 19:34:29,408 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_make_txreqs [2021-12-06 19:34:29,408 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_destroy_queues [2021-12-06 19:34:29,408 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_destroy_queues [2021-12-06 19:34:29,408 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-12-06 19:34:29,408 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-12-06 19:34:29,408 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-06 19:34:29,408 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-06 19:34:29,408 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_grant_ring [2021-12-06 19:34:29,408 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_grant_ring [2021-12-06 19:34:29,408 INFO L130 BoogieDeclarations]: Found specification of procedure free_percpu [2021-12-06 19:34:29,409 INFO L138 BoogieDeclarations]: Found implementation of procedure free_percpu [2021-12-06 19:34:29,409 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-06 19:34:29,409 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-06 19:34:29,409 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_claim_grant_reference [2021-12-06 19:34:29,409 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_claim_grant_reference [2021-12-06 19:34:29,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-06 19:34:29,409 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-06 19:34:29,409 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-06 19:34:29,409 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-06 19:34:29,409 INFO L130 BoogieDeclarations]: Found specification of procedure netif_set_real_num_tx_queues [2021-12-06 19:34:29,409 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_set_real_num_tx_queues [2021-12-06 19:34:29,409 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access [2021-12-06 19:34:29,410 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access [2021-12-06 19:34:29,410 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_disconnect_backend [2021-12-06 19:34:29,410 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_disconnect_backend [2021-12-06 19:34:29,410 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_stats64 [2021-12-06 19:34:29,410 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_stats64 [2021-12-06 19:34:29,410 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-06 19:34:29,410 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-06 19:34:29,410 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_alloc_evtchn [2021-12-06 19:34:29,410 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_alloc_evtchn [2021-12-06 19:34:29,410 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-12-06 19:34:29,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-12-06 19:34:29,410 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_alloc_grant_references [2021-12-06 19:34:29,411 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_alloc_grant_references [2021-12-06 19:34:29,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2021-12-06 19:34:29,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2021-12-06 19:34:29,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 19:34:29,411 INFO L130 BoogieDeclarations]: Found specification of procedure netfront_tx_slot_available [2021-12-06 19:34:29,411 INFO L138 BoogieDeclarations]: Found implementation of procedure netfront_tx_slot_available [2021-12-06 19:34:29,411 INFO L130 BoogieDeclarations]: Found specification of procedure notify_remote_via_irq [2021-12-06 19:34:29,411 INFO L138 BoogieDeclarations]: Found implementation of procedure notify_remote_via_irq [2021-12-06 19:34:29,411 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_release_grant_reference [2021-12-06 19:34:29,411 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_release_grant_reference [2021-12-06 19:34:29,411 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-06 19:34:29,411 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-06 19:34:29,411 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-12-06 19:34:29,412 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-12-06 19:34:29,412 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_can_sg [2021-12-06 19:34:29,412 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_can_sg [2021-12-06 19:34:29,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 19:34:29,412 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-06 19:34:29,412 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-06 19:34:29,412 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-06 19:34:29,412 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-06 19:34:29,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-06 19:34:29,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-06 19:34:29,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-06 19:34:29,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-06 19:34:29,413 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_rxidx [2021-12-06 19:34:29,413 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_rxidx [2021-12-06 19:34:29,413 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-06 19:34:29,413 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-06 19:34:29,413 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2021-12-06 19:34:29,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2021-12-06 19:34:29,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-12-06 19:34:29,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-12-06 19:34:29,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-12-06 19:34:29,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 19:34:29,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-06 19:34:29,413 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2021-12-06 19:34:29,414 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2021-12-06 19:34:29,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 19:34:29,414 INFO L130 BoogieDeclarations]: Found specification of procedure write_queue_xenstore_keys [2021-12-06 19:34:29,414 INFO L138 BoogieDeclarations]: Found implementation of procedure write_queue_xenstore_keys [2021-12-06 19:34:29,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-12-06 19:34:29,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-06 19:34:29,414 INFO L130 BoogieDeclarations]: Found specification of procedure pfn_to_mfn [2021-12-06 19:34:29,414 INFO L138 BoogieDeclarations]: Found implementation of procedure pfn_to_mfn [2021-12-06 19:34:29,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-12-06 19:34:29,414 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-12-06 19:34:29,414 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-12-06 19:34:29,414 INFO L130 BoogieDeclarations]: Found specification of procedure add_id_to_freelist [2021-12-06 19:34:29,414 INFO L138 BoogieDeclarations]: Found implementation of procedure add_id_to_freelist [2021-12-06 19:34:29,415 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_alloc_rx_buffers [2021-12-06 19:34:29,415 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_alloc_rx_buffers [2021-12-06 19:34:29,415 INFO L130 BoogieDeclarations]: Found specification of procedure skb_entry_set_link [2021-12-06 19:34:29,415 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_entry_set_link [2021-12-06 19:34:29,415 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-06 19:34:29,415 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-06 19:34:29,415 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-06 19:34:29,415 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-06 19:34:29,415 INFO L130 BoogieDeclarations]: Found specification of procedure store_rxbuf [2021-12-06 19:34:29,415 INFO L138 BoogieDeclarations]: Found implementation of procedure store_rxbuf [2021-12-06 19:34:29,415 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-12-06 19:34:29,415 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-12-06 19:34:29,415 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2021-12-06 19:34:29,416 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2021-12-06 19:34:29,416 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access_ref [2021-12-06 19:34:29,416 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access_ref [2021-12-06 19:34:29,416 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_make_one_txreq [2021-12-06 19:34:29,416 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_make_one_txreq [2021-12-06 19:34:29,416 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-12-06 19:34:29,416 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-12-06 19:34:29,416 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_free_grant_references [2021-12-06 19:34:29,416 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_free_grant_references [2021-12-06 19:34:29,416 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2021-12-06 19:34:29,416 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2021-12-06 19:34:29,416 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-12-06 19:34:29,416 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-12-06 19:34:29,416 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-06 19:34:29,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-06 19:34:29,417 INFO L130 BoogieDeclarations]: Found specification of procedure unbind_from_irqhandler [2021-12-06 19:34:29,417 INFO L138 BoogieDeclarations]: Found implementation of procedure unbind_from_irqhandler [2021-12-06 19:34:29,417 INFO L130 BoogieDeclarations]: Found specification of procedure get_zeroed_page [2021-12-06 19:34:29,417 INFO L138 BoogieDeclarations]: Found implementation of procedure get_zeroed_page [2021-12-06 19:34:29,417 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_free_netdev [2021-12-06 19:34:29,417 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_free_netdev [2021-12-06 19:34:29,417 INFO L130 BoogieDeclarations]: Found specification of procedure netback_changed [2021-12-06 19:34:29,417 INFO L138 BoogieDeclarations]: Found implementation of procedure netback_changed [2021-12-06 19:34:29,417 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_poll_controller [2021-12-06 19:34:29,417 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_poll_controller [2021-12-06 19:34:29,417 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2021-12-06 19:34:29,417 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2021-12-06 19:34:29,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-06 19:34:29,418 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-06 19:34:29,418 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_select_queue [2021-12-06 19:34:29,418 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_select_queue [2021-12-06 19:34:29,418 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_end_access [2021-12-06 19:34:29,418 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_end_access [2021-12-06 19:34:29,418 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-06 19:34:29,418 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-06 19:34:29,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-06 19:34:29,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-06 19:34:29,418 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2021-12-06 19:34:29,418 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2021-12-06 19:34:29,418 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_init [2021-12-06 19:34:29,419 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_init [2021-12-06 19:34:29,419 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-06 19:34:29,419 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-06 19:34:29,419 INFO L130 BoogieDeclarations]: Found specification of procedure skb_add_rx_frag [2021-12-06 19:34:29,419 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_add_rx_frag [2021-12-06 19:34:29,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-12-06 19:34:29,419 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-12-06 19:34:29,419 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-12-06 19:34:29,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-12-06 19:34:29,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-12-06 19:34:29,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-12-06 19:34:29,419 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-12-06 19:34:29,419 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-12-06 19:34:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-06 19:34:29,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-06 19:34:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-06 19:34:29,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-06 19:34:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_fix_features [2021-12-06 19:34:29,420 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_fix_features [2021-12-06 19:34:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 19:34:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-12-06 19:34:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-06 19:34:29,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-06 19:34:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure get_phys_to_machine [2021-12-06 19:34:29,420 INFO L138 BoogieDeclarations]: Found implementation of procedure get_phys_to_machine [2021-12-06 19:34:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 19:34:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-06 19:34:29,421 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-06 19:34:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2021-12-06 19:34:29,421 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2021-12-06 19:34:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 19:34:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-12-06 19:34:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-12-06 19:34:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-12-06 19:34:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-12-06 19:34:29,421 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-12-06 19:34:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-12-06 19:34:29,421 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-12-06 19:34:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure show_rxbuf [2021-12-06 19:34:29,421 INFO L138 BoogieDeclarations]: Found implementation of procedure show_rxbuf [2021-12-06 19:34:29,422 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2021-12-06 19:34:29,422 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2021-12-06 19:34:29,422 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-06 19:34:29,422 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-06 19:34:29,422 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_grant_foreign_access_ref [2021-12-06 19:34:29,422 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_grant_foreign_access_ref [2021-12-06 19:34:29,422 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-12-06 19:34:29,422 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-12-06 19:34:29,422 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_set_features [2021-12-06 19:34:29,422 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_set_features [2021-12-06 19:34:29,422 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-12-06 19:34:29,422 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-12-06 19:34:29,422 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_irq [2021-12-06 19:34:29,423 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_irq [2021-12-06 19:34:29,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-12-06 19:34:29,423 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_free_evtchn [2021-12-06 19:34:29,423 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_free_evtchn [2021-12-06 19:34:29,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 19:34:29,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 19:34:29,423 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_tx_buf_gc [2021-12-06 19:34:29,423 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_tx_buf_gc [2021-12-06 19:34:29,423 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-12-06 19:34:29,423 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-12-06 19:34:29,423 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-06 19:34:29,423 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-06 19:34:29,900 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 19:34:29,903 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 19:34:42,062 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-06 19:35:06,021 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 19:35:06,039 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 19:35:06,039 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 19:35:06,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:35:06 BoogieIcfgContainer [2021-12-06 19:35:06,043 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 19:35:06,044 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 19:35:06,044 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 19:35:06,046 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 19:35:06,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 07:34:26" (1/3) ... [2021-12-06 19:35:06,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8cbd9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:35:06, skipping insertion in model container [2021-12-06 19:35:06,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:34:28" (2/3) ... [2021-12-06 19:35:06,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8cbd9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:35:06, skipping insertion in model container [2021-12-06 19:35:06,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:35:06" (3/3) ... [2021-12-06 19:35:06,048 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i [2021-12-06 19:35:06,052 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 19:35:06,052 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 19:35:06,100 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 19:35:06,105 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 19:35:06,105 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 19:35:06,148 INFO L276 IsEmpty]: Start isEmpty. Operand has 1564 states, 1105 states have (on average 1.3221719457013574) internal successors, (1461), 1140 states have internal predecessors, (1461), 352 states have call successors, (352), 106 states have call predecessors, (352), 105 states have return successors, (343), 340 states have call predecessors, (343), 343 states have call successors, (343) [2021-12-06 19:35:06,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2021-12-06 19:35:06,184 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:35:06,185 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:35:06,186 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:35:06,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:35:06,190 INFO L85 PathProgramCache]: Analyzing trace with hash -2007704875, now seen corresponding path program 1 times [2021-12-06 19:35:06,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:35:06,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1797277744] [2021-12-06 19:35:06,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:35:06,215 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:35:06,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:35:06,216 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:35:06,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-06 19:35:07,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:35:07,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 2307 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-06 19:35:07,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:35:08,136 INFO L134 CoverageAnalysis]: Checked inductivity of 2021 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 1946 trivial. 0 not checked. [2021-12-06 19:35:08,136 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:35:08,137 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:35:08,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1797277744] [2021-12-06 19:35:08,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1797277744] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:35:08,138 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:35:08,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 19:35:08,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122634475] [2021-12-06 19:35:08,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:35:08,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 19:35:08,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:35:08,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 19:35:08,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 19:35:08,172 INFO L87 Difference]: Start difference. First operand has 1564 states, 1105 states have (on average 1.3221719457013574) internal successors, (1461), 1140 states have internal predecessors, (1461), 352 states have call successors, (352), 106 states have call predecessors, (352), 105 states have return successors, (343), 340 states have call predecessors, (343), 343 states have call successors, (343) Second operand has 2 states, 2 states have (on average 50.0) internal successors, (100), 2 states have internal predecessors, (100), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-12-06 19:35:08,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:35:08,296 INFO L93 Difference]: Finished difference Result 3123 states and 4356 transitions. [2021-12-06 19:35:08,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 19:35:08,298 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 50.0) internal successors, (100), 2 states have internal predecessors, (100), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 447 [2021-12-06 19:35:08,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:35:08,324 INFO L225 Difference]: With dead ends: 3123 [2021-12-06 19:35:08,324 INFO L226 Difference]: Without dead ends: 1537 [2021-12-06 19:35:08,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 446 GetRequests, 446 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 19:35:08,338 INFO L933 BasicCegarLoop]: 2152 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, 2152 SdHoareTripleChecker+Invalid, 0 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 [2021-12-06 19:35:08,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2152 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:35:08,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1537 states. [2021-12-06 19:35:08,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1537 to 1537. [2021-12-06 19:35:08,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1537 states, 1089 states have (on average 1.3085399449035813) internal successors, (1425), 1113 states have internal predecessors, (1425), 343 states have call successors, (343), 105 states have call predecessors, (343), 104 states have return successors, (342), 339 states have call predecessors, (342), 342 states have call successors, (342) [2021-12-06 19:35:08,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1537 states to 1537 states and 2110 transitions. [2021-12-06 19:35:08,471 INFO L78 Accepts]: Start accepts. Automaton has 1537 states and 2110 transitions. Word has length 447 [2021-12-06 19:35:08,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:35:08,473 INFO L470 AbstractCegarLoop]: Abstraction has 1537 states and 2110 transitions. [2021-12-06 19:35:08,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 50.0) internal successors, (100), 2 states have internal predecessors, (100), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-12-06 19:35:08,473 INFO L276 IsEmpty]: Start isEmpty. Operand 1537 states and 2110 transitions. [2021-12-06 19:35:08,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2021-12-06 19:35:08,487 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:35:08,487 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:35:08,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-06 19:35:08,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:35:08,688 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:35:08,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:35:08,689 INFO L85 PathProgramCache]: Analyzing trace with hash -498973003, now seen corresponding path program 1 times [2021-12-06 19:35:08,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:35:08,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1739661622] [2021-12-06 19:35:08,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:35:08,692 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:35:08,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:35:08,693 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:35:08,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-06 19:35:10,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:35:10,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 2307 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 19:35:10,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:35:10,917 INFO L134 CoverageAnalysis]: Checked inductivity of 2021 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 1949 trivial. 0 not checked. [2021-12-06 19:35:10,918 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:35:10,918 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:35:10,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1739661622] [2021-12-06 19:35:10,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1739661622] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:35:10,918 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:35:10,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 19:35:10,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915923115] [2021-12-06 19:35:10,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:35:10,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 19:35:10,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:35:10,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 19:35:10,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:35:10,921 INFO L87 Difference]: Start difference. First operand 1537 states and 2110 transitions. Second operand has 6 states, 5 states have (on average 20.4) internal successors, (102), 6 states have internal predecessors, (102), 3 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2021-12-06 19:35:11,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:35:11,328 INFO L93 Difference]: Finished difference Result 3044 states and 4187 transitions. [2021-12-06 19:35:11,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:35:11,329 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.4) internal successors, (102), 6 states have internal predecessors, (102), 3 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 447 [2021-12-06 19:35:11,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:35:11,342 INFO L225 Difference]: With dead ends: 3044 [2021-12-06 19:35:11,342 INFO L226 Difference]: Without dead ends: 1538 [2021-12-06 19:35:11,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 442 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-06 19:35:11,350 INFO L933 BasicCegarLoop]: 2098 mSDtfsCounter, 6 mSDsluCounter, 8366 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 10464 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:35:11,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 10464 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:35:11,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1538 states. [2021-12-06 19:35:11,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1538 to 1538. [2021-12-06 19:35:11,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1538 states, 1090 states have (on average 1.308256880733945) internal successors, (1426), 1114 states have internal predecessors, (1426), 343 states have call successors, (343), 105 states have call predecessors, (343), 104 states have return successors, (342), 339 states have call predecessors, (342), 342 states have call successors, (342) [2021-12-06 19:35:11,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1538 states to 1538 states and 2111 transitions. [2021-12-06 19:35:11,422 INFO L78 Accepts]: Start accepts. Automaton has 1538 states and 2111 transitions. Word has length 447 [2021-12-06 19:35:11,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:35:11,424 INFO L470 AbstractCegarLoop]: Abstraction has 1538 states and 2111 transitions. [2021-12-06 19:35:11,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.4) internal successors, (102), 6 states have internal predecessors, (102), 3 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2021-12-06 19:35:11,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1538 states and 2111 transitions. [2021-12-06 19:35:11,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2021-12-06 19:35:11,433 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:35:11,433 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:35:11,467 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-06 19:35:11,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:35:11,634 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:35:11,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:35:11,635 INFO L85 PathProgramCache]: Analyzing trace with hash 796433049, now seen corresponding path program 1 times [2021-12-06 19:35:11,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:35:11,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [234575948] [2021-12-06 19:35:11,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:35:11,637 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:35:11,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:35:11,638 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:35:11,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-06 19:35:13,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:35:13,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 2406 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 19:35:13,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:35:13,913 INFO L134 CoverageAnalysis]: Checked inductivity of 2138 backedges. 96 proven. 1 refuted. 0 times theorem prover too weak. 2041 trivial. 0 not checked. [2021-12-06 19:35:13,913 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:35:14,792 INFO L134 CoverageAnalysis]: Checked inductivity of 2138 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 2057 trivial. 0 not checked. [2021-12-06 19:35:14,792 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:35:14,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [234575948] [2021-12-06 19:35:14,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [234575948] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:35:14,792 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 19:35:14,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-12-06 19:35:14,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665744816] [2021-12-06 19:35:14,793 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 19:35:14,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-06 19:35:14,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:35:14,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-06 19:35:14,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-12-06 19:35:14,794 INFO L87 Difference]: Start difference. First operand 1538 states and 2111 transitions. Second operand has 11 states, 9 states have (on average 15.555555555555555) internal successors, (140), 11 states have internal predecessors, (140), 4 states have call successors, (64), 2 states have call predecessors, (64), 5 states have return successors, (62), 4 states have call predecessors, (62), 4 states have call successors, (62) [2021-12-06 19:35:15,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:35:15,484 INFO L93 Difference]: Finished difference Result 3051 states and 4195 transitions. [2021-12-06 19:35:15,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:35:15,485 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 15.555555555555555) internal successors, (140), 11 states have internal predecessors, (140), 4 states have call successors, (64), 2 states have call predecessors, (64), 5 states have return successors, (62), 4 states have call predecessors, (62), 4 states have call successors, (62) Word has length 456 [2021-12-06 19:35:15,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:35:15,494 INFO L225 Difference]: With dead ends: 3051 [2021-12-06 19:35:15,494 INFO L226 Difference]: Without dead ends: 1544 [2021-12-06 19:35:15,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 913 GetRequests, 901 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2021-12-06 19:35:15,500 INFO L933 BasicCegarLoop]: 2099 mSDtfsCounter, 8 mSDsluCounter, 12555 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 14654 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 19:35:15,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 14654 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 19:35:15,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1544 states. [2021-12-06 19:35:15,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1544 to 1544. [2021-12-06 19:35:15,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1544 states, 1094 states have (on average 1.3071297989031079) internal successors, (1430), 1118 states have internal predecessors, (1430), 344 states have call successors, (344), 106 states have call predecessors, (344), 105 states have return successors, (343), 340 states have call predecessors, (343), 343 states have call successors, (343) [2021-12-06 19:35:15,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1544 states to 1544 states and 2117 transitions. [2021-12-06 19:35:15,564 INFO L78 Accepts]: Start accepts. Automaton has 1544 states and 2117 transitions. Word has length 456 [2021-12-06 19:35:15,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:35:15,565 INFO L470 AbstractCegarLoop]: Abstraction has 1544 states and 2117 transitions. [2021-12-06 19:35:15,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 15.555555555555555) internal successors, (140), 11 states have internal predecessors, (140), 4 states have call successors, (64), 2 states have call predecessors, (64), 5 states have return successors, (62), 4 states have call predecessors, (62), 4 states have call successors, (62) [2021-12-06 19:35:15,566 INFO L276 IsEmpty]: Start isEmpty. Operand 1544 states and 2117 transitions. [2021-12-06 19:35:15,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2021-12-06 19:35:15,571 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:35:15,572 INFO L514 BasicCegarLoop]: trace histogram [18, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:35:15,605 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-12-06 19:35:15,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:35:15,772 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:35:15,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:35:15,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1888440629, now seen corresponding path program 2 times [2021-12-06 19:35:15,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:35:15,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1565786304] [2021-12-06 19:35:15,775 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 19:35:15,775 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:35:15,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:35:15,776 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:35:15,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-06 19:35:16,476 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-06 19:35:16,476 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 19:35:16,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 1167 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 19:35:16,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:35:16,881 INFO L134 CoverageAnalysis]: Checked inductivity of 2336 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2336 trivial. 0 not checked. [2021-12-06 19:35:16,882 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:35:16,882 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:35:16,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1565786304] [2021-12-06 19:35:16,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1565786304] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:35:16,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:35:16,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 19:35:16,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515454257] [2021-12-06 19:35:16,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:35:16,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:35:16,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:35:16,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:35:16,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:35:16,885 INFO L87 Difference]: Start difference. First operand 1544 states and 2117 transitions. Second operand has 5 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2021-12-06 19:35:16,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:35:16,989 INFO L93 Difference]: Finished difference Result 1573 states and 2159 transitions. [2021-12-06 19:35:16,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 19:35:16,989 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) Word has length 465 [2021-12-06 19:35:16,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:35:17,002 INFO L225 Difference]: With dead ends: 1573 [2021-12-06 19:35:17,002 INFO L226 Difference]: Without dead ends: 1570 [2021-12-06 19:35:17,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 461 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 19:35:17,004 INFO L933 BasicCegarLoop]: 2146 mSDtfsCounter, 59 mSDsluCounter, 6356 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 8502 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:35:17,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 8502 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:35:17,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2021-12-06 19:35:17,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 1548. [2021-12-06 19:35:17,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1548 states, 1097 states have (on average 1.3062898814949864) internal successors, (1433), 1121 states have internal predecessors, (1433), 344 states have call successors, (344), 107 states have call predecessors, (344), 106 states have return successors, (343), 340 states have call predecessors, (343), 343 states have call successors, (343) [2021-12-06 19:35:17,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1548 states to 1548 states and 2120 transitions. [2021-12-06 19:35:17,049 INFO L78 Accepts]: Start accepts. Automaton has 1548 states and 2120 transitions. Word has length 465 [2021-12-06 19:35:17,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:35:17,051 INFO L470 AbstractCegarLoop]: Abstraction has 1548 states and 2120 transitions. [2021-12-06 19:35:17,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2021-12-06 19:35:17,051 INFO L276 IsEmpty]: Start isEmpty. Operand 1548 states and 2120 transitions. [2021-12-06 19:35:17,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2021-12-06 19:35:17,057 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:35:17,057 INFO L514 BasicCegarLoop]: trace histogram [18, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:35:17,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-12-06 19:35:17,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:35:17,259 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:35:17,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:35:17,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1959152789, now seen corresponding path program 1 times [2021-12-06 19:35:17,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:35:17,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2119854879] [2021-12-06 19:35:17,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:35:17,265 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:35:17,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:35:17,267 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:35:17,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-06 19:35:19,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:35:19,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 2817 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 19:35:19,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:35:20,159 INFO L134 CoverageAnalysis]: Checked inductivity of 2319 backedges. 136 proven. 3 refuted. 0 times theorem prover too weak. 2180 trivial. 0 not checked. [2021-12-06 19:35:20,159 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:35:21,191 INFO L134 CoverageAnalysis]: Checked inductivity of 2319 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 2196 trivial. 0 not checked. [2021-12-06 19:35:21,191 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:35:21,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2119854879] [2021-12-06 19:35:21,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2119854879] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:35:21,191 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 19:35:21,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-12-06 19:35:21,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403116216] [2021-12-06 19:35:21,192 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 19:35:21,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 19:35:21,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:35:21,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 19:35:21,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:35:21,193 INFO L87 Difference]: Start difference. First operand 1548 states and 2120 transitions. Second operand has 13 states, 11 states have (on average 13.454545454545455) internal successors, (148), 13 states have internal predecessors, (148), 4 states have call successors, (56), 2 states have call predecessors, (56), 5 states have return successors, (54), 4 states have call predecessors, (54), 4 states have call successors, (54) [2021-12-06 19:35:21,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:35:21,881 INFO L93 Difference]: Finished difference Result 3069 states and 4210 transitions. [2021-12-06 19:35:21,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 19:35:21,882 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 13.454545454545455) internal successors, (148), 13 states have internal predecessors, (148), 4 states have call successors, (56), 2 states have call predecessors, (56), 5 states have return successors, (54), 4 states have call predecessors, (54), 4 states have call successors, (54) Word has length 458 [2021-12-06 19:35:21,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:35:21,895 INFO L225 Difference]: With dead ends: 3069 [2021-12-06 19:35:21,895 INFO L226 Difference]: Without dead ends: 1549 [2021-12-06 19:35:21,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 917 GetRequests, 903 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-12-06 19:35:21,903 INFO L933 BasicCegarLoop]: 2099 mSDtfsCounter, 15 mSDsluCounter, 12570 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 14669 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 19:35:21,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 14669 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 19:35:21,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1549 states. [2021-12-06 19:35:21,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1549 to 1549. [2021-12-06 19:35:21,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1549 states, 1098 states have (on average 1.3060109289617485) internal successors, (1434), 1122 states have internal predecessors, (1434), 344 states have call successors, (344), 107 states have call predecessors, (344), 106 states have return successors, (343), 340 states have call predecessors, (343), 343 states have call successors, (343) [2021-12-06 19:35:21,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1549 states to 1549 states and 2121 transitions. [2021-12-06 19:35:21,962 INFO L78 Accepts]: Start accepts. Automaton has 1549 states and 2121 transitions. Word has length 458 [2021-12-06 19:35:21,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:35:21,963 INFO L470 AbstractCegarLoop]: Abstraction has 1549 states and 2121 transitions. [2021-12-06 19:35:21,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 13.454545454545455) internal successors, (148), 13 states have internal predecessors, (148), 4 states have call successors, (56), 2 states have call predecessors, (56), 5 states have return successors, (54), 4 states have call predecessors, (54), 4 states have call successors, (54) [2021-12-06 19:35:21,963 INFO L276 IsEmpty]: Start isEmpty. Operand 1549 states and 2121 transitions. [2021-12-06 19:35:21,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2021-12-06 19:35:21,972 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:35:21,972 INFO L514 BasicCegarLoop]: trace histogram [27, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:35:22,011 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-12-06 19:35:22,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:35:22,173 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:35:22,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:35:22,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1611442937, now seen corresponding path program 2 times [2021-12-06 19:35:22,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:35:22,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1178458424] [2021-12-06 19:35:22,176 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 19:35:22,176 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:35:22,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:35:22,177 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:35:22,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-06 19:35:23,163 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-06 19:35:23,163 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 19:35:23,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 1610 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:35:23,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:35:23,664 INFO L134 CoverageAnalysis]: Checked inductivity of 2598 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2598 trivial. 0 not checked. [2021-12-06 19:35:23,664 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:35:23,665 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:35:23,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1178458424] [2021-12-06 19:35:23,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1178458424] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:35:23,665 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:35:23,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:35:23,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882842836] [2021-12-06 19:35:23,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:35:23,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:35:23,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:35:23,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:35:23,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:35:23,667 INFO L87 Difference]: Start difference. First operand 1549 states and 2121 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-12-06 19:35:23,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:35:23,901 INFO L93 Difference]: Finished difference Result 3909 states and 5335 transitions. [2021-12-06 19:35:23,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:35:23,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 467 [2021-12-06 19:35:23,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:35:23,913 INFO L225 Difference]: With dead ends: 3909 [2021-12-06 19:35:23,913 INFO L226 Difference]: Without dead ends: 2424 [2021-12-06 19:35:23,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 465 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 19:35:23,918 INFO L933 BasicCegarLoop]: 2277 mSDtfsCounter, 1250 mSDsluCounter, 1999 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1250 SdHoareTripleChecker+Valid, 4276 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:35:23,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1250 Valid, 4276 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:35:23,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2424 states. [2021-12-06 19:35:23,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2424 to 2419. [2021-12-06 19:35:23,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2419 states, 1730 states have (on average 1.3150289017341041) internal successors, (2275), 1764 states have internal predecessors, (2275), 512 states have call successors, (512), 177 states have call predecessors, (512), 176 states have return successors, (511), 504 states have call predecessors, (511), 511 states have call successors, (511) [2021-12-06 19:35:23,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2419 states to 2419 states and 3298 transitions. [2021-12-06 19:35:23,986 INFO L78 Accepts]: Start accepts. Automaton has 2419 states and 3298 transitions. Word has length 467 [2021-12-06 19:35:23,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:35:23,987 INFO L470 AbstractCegarLoop]: Abstraction has 2419 states and 3298 transitions. [2021-12-06 19:35:23,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-12-06 19:35:23,987 INFO L276 IsEmpty]: Start isEmpty. Operand 2419 states and 3298 transitions. [2021-12-06 19:35:23,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2021-12-06 19:35:23,992 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:35:23,992 INFO L514 BasicCegarLoop]: trace histogram [27, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:35:24,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-12-06 19:35:24,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:35:24,194 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:35:24,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:35:24,195 INFO L85 PathProgramCache]: Analyzing trace with hash -758597085, now seen corresponding path program 1 times [2021-12-06 19:35:24,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:35:24,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1761709640] [2021-12-06 19:35:24,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:35:24,202 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:35:24,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:35:24,204 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:35:24,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-12-06 19:35:25,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:35:26,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 2645 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 19:35:26,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:35:26,759 INFO L134 CoverageAnalysis]: Checked inductivity of 2623 backedges. 192 proven. 6 refuted. 0 times theorem prover too weak. 2425 trivial. 0 not checked. [2021-12-06 19:35:26,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:35:28,002 INFO L134 CoverageAnalysis]: Checked inductivity of 2623 backedges. 2 proven. 182 refuted. 0 times theorem prover too weak. 2439 trivial. 0 not checked. [2021-12-06 19:35:28,002 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:35:28,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1761709640] [2021-12-06 19:35:28,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1761709640] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:35:28,002 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 19:35:28,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2021-12-06 19:35:28,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108130811] [2021-12-06 19:35:28,002 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 19:35:28,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-06 19:35:28,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:35:28,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-06 19:35:28,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-12-06 19:35:28,004 INFO L87 Difference]: Start difference. First operand 2419 states and 3298 transitions. Second operand has 15 states, 13 states have (on average 12.23076923076923) internal successors, (159), 15 states have internal predecessors, (159), 4 states have call successors, (70), 2 states have call predecessors, (70), 5 states have return successors, (68), 4 states have call predecessors, (68), 4 states have call successors, (68) [2021-12-06 19:35:28,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:35:28,720 INFO L93 Difference]: Finished difference Result 4814 states and 6569 transitions. [2021-12-06 19:35:28,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 19:35:28,721 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 12.23076923076923) internal successors, (159), 15 states have internal predecessors, (159), 4 states have call successors, (70), 2 states have call predecessors, (70), 5 states have return successors, (68), 4 states have call predecessors, (68), 4 states have call successors, (68) Word has length 492 [2021-12-06 19:35:28,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:35:28,733 INFO L225 Difference]: With dead ends: 4814 [2021-12-06 19:35:28,733 INFO L226 Difference]: Without dead ends: 2421 [2021-12-06 19:35:28,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 985 GetRequests, 969 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2021-12-06 19:35:28,741 INFO L933 BasicCegarLoop]: 2099 mSDtfsCounter, 16 mSDsluCounter, 12568 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 14667 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 19:35:28,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 14667 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 19:35:28,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2421 states. [2021-12-06 19:35:28,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2421 to 2421. [2021-12-06 19:35:28,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2421 states, 1732 states have (on average 1.3146651270207852) internal successors, (2277), 1766 states have internal predecessors, (2277), 512 states have call successors, (512), 177 states have call predecessors, (512), 176 states have return successors, (511), 504 states have call predecessors, (511), 511 states have call successors, (511) [2021-12-06 19:35:28,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2421 states to 2421 states and 3300 transitions. [2021-12-06 19:35:28,807 INFO L78 Accepts]: Start accepts. Automaton has 2421 states and 3300 transitions. Word has length 492 [2021-12-06 19:35:28,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:35:28,808 INFO L470 AbstractCegarLoop]: Abstraction has 2421 states and 3300 transitions. [2021-12-06 19:35:28,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 12.23076923076923) internal successors, (159), 15 states have internal predecessors, (159), 4 states have call successors, (70), 2 states have call predecessors, (70), 5 states have return successors, (68), 4 states have call predecessors, (68), 4 states have call successors, (68) [2021-12-06 19:35:28,808 INFO L276 IsEmpty]: Start isEmpty. Operand 2421 states and 3300 transitions. [2021-12-06 19:35:28,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2021-12-06 19:35:28,813 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:35:28,814 INFO L514 BasicCegarLoop]: trace histogram [36, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:35:28,857 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-12-06 19:35:29,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:35:29,015 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:35:29,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:35:29,016 INFO L85 PathProgramCache]: Analyzing trace with hash 644406975, now seen corresponding path program 2 times [2021-12-06 19:35:29,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:35:29,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2043580305] [2021-12-06 19:35:29,018 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 19:35:29,019 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:35:29,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:35:29,020 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:35:29,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-12-06 19:35:30,198 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-06 19:35:30,198 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 19:35:30,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:35:30,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:35:30,689 INFO L134 CoverageAnalysis]: Checked inductivity of 2983 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2983 trivial. 0 not checked. [2021-12-06 19:35:30,689 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:35:30,690 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:35:30,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2043580305] [2021-12-06 19:35:30,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2043580305] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:35:30,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:35:30,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:35:30,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136896995] [2021-12-06 19:35:30,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:35:30,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:35:30,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:35:30,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:35:30,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:35:30,691 INFO L87 Difference]: Start difference. First operand 2421 states and 3300 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-12-06 19:35:31,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:35:31,101 INFO L93 Difference]: Finished difference Result 5997 states and 8157 transitions. [2021-12-06 19:35:31,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:35:31,102 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 501 [2021-12-06 19:35:31,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:35:31,120 INFO L225 Difference]: With dead ends: 5997 [2021-12-06 19:35:31,120 INFO L226 Difference]: Without dead ends: 3648 [2021-12-06 19:35:31,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 499 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 19:35:31,127 INFO L933 BasicCegarLoop]: 2572 mSDtfsCounter, 1503 mSDsluCounter, 1915 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 4487 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:35:31,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1503 Valid, 4487 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 19:35:31,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3648 states. [2021-12-06 19:35:31,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3648 to 3632. [2021-12-06 19:35:31,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3632 states, 2618 states have (on average 1.3181818181818181) internal successors, (3451), 2682 states have internal predecessors, (3451), 743 states have call successors, (743), 273 states have call predecessors, (743), 270 states have return successors, (742), 722 states have call predecessors, (742), 742 states have call successors, (742) [2021-12-06 19:35:31,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3632 states to 3632 states and 4936 transitions. [2021-12-06 19:35:31,235 INFO L78 Accepts]: Start accepts. Automaton has 3632 states and 4936 transitions. Word has length 501 [2021-12-06 19:35:31,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:35:31,235 INFO L470 AbstractCegarLoop]: Abstraction has 3632 states and 4936 transitions. [2021-12-06 19:35:31,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-12-06 19:35:31,235 INFO L276 IsEmpty]: Start isEmpty. Operand 3632 states and 4936 transitions. [2021-12-06 19:35:31,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 593 [2021-12-06 19:35:31,242 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:35:31,242 INFO L514 BasicCegarLoop]: trace histogram [36, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:35:31,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-12-06 19:35:31,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:35:31,443 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:35:31,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:35:31,443 INFO L85 PathProgramCache]: Analyzing trace with hash -472437293, now seen corresponding path program 1 times [2021-12-06 19:35:31,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:35:31,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2117799247] [2021-12-06 19:35:31,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:35:31,445 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:35:31,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:35:31,446 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:35:31,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-12-06 19:35:34,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:35:34,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 3331 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-06 19:35:34,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:35:35,000 INFO L134 CoverageAnalysis]: Checked inductivity of 4517 backedges. 2097 proven. 10 refuted. 0 times theorem prover too weak. 2410 trivial. 0 not checked. [2021-12-06 19:35:35,000 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:35:36,723 INFO L134 CoverageAnalysis]: Checked inductivity of 4517 backedges. 93 proven. 165 refuted. 0 times theorem prover too weak. 4259 trivial. 0 not checked. [2021-12-06 19:35:36,723 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:35:36,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2117799247] [2021-12-06 19:35:36,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2117799247] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:35:36,723 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 19:35:36,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2021-12-06 19:35:36,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118761728] [2021-12-06 19:35:36,724 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 19:35:36,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-06 19:35:36,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:35:36,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-06 19:35:36,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2021-12-06 19:35:36,726 INFO L87 Difference]: Start difference. First operand 3632 states and 4936 transitions. Second operand has 17 states, 15 states have (on average 12.2) internal successors, (183), 17 states have internal predecessors, (183), 4 states have call successors, (67), 2 states have call predecessors, (67), 5 states have return successors, (65), 4 states have call predecessors, (65), 4 states have call successors, (65) [2021-12-06 19:35:37,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:35:37,932 INFO L93 Difference]: Finished difference Result 7246 states and 9858 transitions. [2021-12-06 19:35:37,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-06 19:35:37,933 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 12.2) internal successors, (183), 17 states have internal predecessors, (183), 4 states have call successors, (67), 2 states have call predecessors, (67), 5 states have return successors, (65), 4 states have call predecessors, (65), 4 states have call successors, (65) Word has length 592 [2021-12-06 19:35:37,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:35:37,952 INFO L225 Difference]: With dead ends: 7246 [2021-12-06 19:35:37,952 INFO L226 Difference]: Without dead ends: 3643 [2021-12-06 19:35:37,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1188 GetRequests, 1167 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2021-12-06 19:35:37,962 INFO L933 BasicCegarLoop]: 2098 mSDtfsCounter, 17 mSDsluCounter, 20941 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 23039 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-06 19:35:37,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 23039 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-06 19:35:37,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3643 states. [2021-12-06 19:35:38,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3643 to 3643. [2021-12-06 19:35:38,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3643 states, 2628 states have (on average 1.317351598173516) internal successors, (3462), 2692 states have internal predecessors, (3462), 743 states have call successors, (743), 274 states have call predecessors, (743), 271 states have return successors, (742), 722 states have call predecessors, (742), 742 states have call successors, (742) [2021-12-06 19:35:38,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3643 states to 3643 states and 4947 transitions. [2021-12-06 19:35:38,058 INFO L78 Accepts]: Start accepts. Automaton has 3643 states and 4947 transitions. Word has length 592 [2021-12-06 19:35:38,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:35:38,059 INFO L470 AbstractCegarLoop]: Abstraction has 3643 states and 4947 transitions. [2021-12-06 19:35:38,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 12.2) internal successors, (183), 17 states have internal predecessors, (183), 4 states have call successors, (67), 2 states have call predecessors, (67), 5 states have return successors, (65), 4 states have call predecessors, (65), 4 states have call successors, (65) [2021-12-06 19:35:38,059 INFO L276 IsEmpty]: Start isEmpty. Operand 3643 states and 4947 transitions. [2021-12-06 19:35:38,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2021-12-06 19:35:38,065 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:35:38,066 INFO L514 BasicCegarLoop]: trace histogram [41, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:35:38,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-12-06 19:35:38,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:35:38,267 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:35:38,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:35:38,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1770230432, now seen corresponding path program 1 times [2021-12-06 19:35:38,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:35:38,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1735673487] [2021-12-06 19:35:38,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:35:38,269 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:35:38,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:35:38,270 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:35:38,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-12-06 19:35:40,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:35:41,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 3387 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-06 19:35:41,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:35:41,932 INFO L134 CoverageAnalysis]: Checked inductivity of 4752 backedges. 2221 proven. 15 refuted. 0 times theorem prover too weak. 2516 trivial. 0 not checked. [2021-12-06 19:35:41,933 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:35:43,885 INFO L134 CoverageAnalysis]: Checked inductivity of 4752 backedges. 108 proven. 219 refuted. 0 times theorem prover too weak. 4425 trivial. 0 not checked. [2021-12-06 19:35:43,886 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:35:43,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1735673487] [2021-12-06 19:35:43,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1735673487] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:35:43,886 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 19:35:43,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2021-12-06 19:35:43,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110277332] [2021-12-06 19:35:43,886 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 19:35:43,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-06 19:35:43,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:35:43,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-06 19:35:43,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2021-12-06 19:35:43,888 INFO L87 Difference]: Start difference. First operand 3643 states and 4947 transitions. Second operand has 19 states, 17 states have (on average 10.941176470588236) internal successors, (186), 19 states have internal predecessors, (186), 4 states have call successors, (67), 2 states have call predecessors, (67), 5 states have return successors, (65), 4 states have call predecessors, (65), 4 states have call successors, (65) [2021-12-06 19:35:45,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:35:45,151 INFO L93 Difference]: Finished difference Result 7256 states and 9859 transitions. [2021-12-06 19:35:45,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-06 19:35:45,152 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 10.941176470588236) internal successors, (186), 19 states have internal predecessors, (186), 4 states have call successors, (67), 2 states have call predecessors, (67), 5 states have return successors, (65), 4 states have call predecessors, (65), 4 states have call successors, (65) Word has length 598 [2021-12-06 19:35:45,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:35:45,170 INFO L225 Difference]: With dead ends: 7256 [2021-12-06 19:35:45,170 INFO L226 Difference]: Without dead ends: 3646 [2021-12-06 19:35:45,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1201 GetRequests, 1177 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=132, Invalid=518, Unknown=0, NotChecked=0, Total=650 [2021-12-06 19:35:45,180 INFO L933 BasicCegarLoop]: 2098 mSDtfsCounter, 37 mSDsluCounter, 20948 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 23046 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-06 19:35:45,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 23046 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-06 19:35:45,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3646 states. [2021-12-06 19:35:45,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3646 to 3646. [2021-12-06 19:35:45,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3646 states, 2631 states have (on average 1.3169897377423032) internal successors, (3465), 2695 states have internal predecessors, (3465), 743 states have call successors, (743), 274 states have call predecessors, (743), 271 states have return successors, (742), 722 states have call predecessors, (742), 742 states have call successors, (742) [2021-12-06 19:35:45,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3646 states to 3646 states and 4950 transitions. [2021-12-06 19:35:45,271 INFO L78 Accepts]: Start accepts. Automaton has 3646 states and 4950 transitions. Word has length 598 [2021-12-06 19:35:45,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:35:45,271 INFO L470 AbstractCegarLoop]: Abstraction has 3646 states and 4950 transitions. [2021-12-06 19:35:45,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 10.941176470588236) internal successors, (186), 19 states have internal predecessors, (186), 4 states have call successors, (67), 2 states have call predecessors, (67), 5 states have return successors, (65), 4 states have call predecessors, (65), 4 states have call successors, (65) [2021-12-06 19:35:45,271 INFO L276 IsEmpty]: Start isEmpty. Operand 3646 states and 4950 transitions. [2021-12-06 19:35:45,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 603 [2021-12-06 19:35:45,285 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:35:45,285 INFO L514 BasicCegarLoop]: trace histogram [46, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:35:45,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2021-12-06 19:35:45,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:35:45,486 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:35:45,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:35:45,487 INFO L85 PathProgramCache]: Analyzing trace with hash 676986195, now seen corresponding path program 2 times [2021-12-06 19:35:45,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:35:45,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [346926911] [2021-12-06 19:35:45,489 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 19:35:45,489 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:35:45,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:35:45,489 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:35:45,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-12-06 19:35:46,526 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-06 19:35:46,527 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 19:35:46,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 1561 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 19:35:46,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:35:47,013 INFO L134 CoverageAnalysis]: Checked inductivity of 5012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5012 trivial. 0 not checked. [2021-12-06 19:35:47,014 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:35:47,014 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:35:47,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [346926911] [2021-12-06 19:35:47,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [346926911] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:35:47,014 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:35:47,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:35:47,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373211055] [2021-12-06 19:35:47,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:35:47,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:35:47,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:35:47,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:35:47,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:35:47,016 INFO L87 Difference]: Start difference. First operand 3646 states and 4950 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-12-06 19:35:47,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:35:47,145 INFO L93 Difference]: Finished difference Result 7236 states and 9839 transitions. [2021-12-06 19:35:47,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:35:47,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 602 [2021-12-06 19:35:47,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:35:47,165 INFO L225 Difference]: With dead ends: 7236 [2021-12-06 19:35:47,165 INFO L226 Difference]: Without dead ends: 3672 [2021-12-06 19:35:47,175 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 601 GetRequests, 600 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 19:35:47,175 INFO L933 BasicCegarLoop]: 2102 mSDtfsCounter, 232 mSDsluCounter, 1795 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 3897 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:35:47,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [296 Valid, 3897 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:35:47,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3672 states. [2021-12-06 19:35:47,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3672 to 3666. [2021-12-06 19:35:47,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3666 states, 2651 states have (on average 1.3145982648057337) internal successors, (3485), 2715 states have internal predecessors, (3485), 743 states have call successors, (743), 274 states have call predecessors, (743), 271 states have return successors, (742), 722 states have call predecessors, (742), 742 states have call successors, (742) [2021-12-06 19:35:47,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3666 states to 3666 states and 4970 transitions. [2021-12-06 19:35:47,259 INFO L78 Accepts]: Start accepts. Automaton has 3666 states and 4970 transitions. Word has length 602 [2021-12-06 19:35:47,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:35:47,259 INFO L470 AbstractCegarLoop]: Abstraction has 3666 states and 4970 transitions. [2021-12-06 19:35:47,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-12-06 19:35:47,260 INFO L276 IsEmpty]: Start isEmpty. Operand 3666 states and 4970 transitions. [2021-12-06 19:35:47,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 604 [2021-12-06 19:35:47,266 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:35:47,266 INFO L514 BasicCegarLoop]: trace histogram [46, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:35:47,298 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-12-06 19:35:47,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:35:47,467 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:35:47,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:35:47,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1789924094, now seen corresponding path program 1 times [2021-12-06 19:35:47,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:35:47,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1639996260] [2021-12-06 19:35:47,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:35:47,469 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:35:47,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:35:47,469 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:35:47,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-12-06 19:35:50,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:35:50,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 3442 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-06 19:35:50,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:35:51,254 INFO L134 CoverageAnalysis]: Checked inductivity of 5012 backedges. 2353 proven. 21 refuted. 0 times theorem prover too weak. 2638 trivial. 0 not checked. [2021-12-06 19:35:51,254 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:35:53,514 INFO L134 CoverageAnalysis]: Checked inductivity of 5012 backedges. 123 proven. 282 refuted. 0 times theorem prover too weak. 4607 trivial. 0 not checked. [2021-12-06 19:35:53,514 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:35:53,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1639996260] [2021-12-06 19:35:53,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1639996260] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:35:53,515 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 19:35:53,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2021-12-06 19:35:53,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772921463] [2021-12-06 19:35:53,515 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 19:35:53,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-12-06 19:35:53,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:35:53,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-12-06 19:35:53,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2021-12-06 19:35:53,517 INFO L87 Difference]: Start difference. First operand 3666 states and 4970 transitions. Second operand has 21 states, 19 states have (on average 9.894736842105264) internal successors, (188), 21 states have internal predecessors, (188), 4 states have call successors, (67), 2 states have call predecessors, (67), 5 states have return successors, (65), 4 states have call predecessors, (65), 4 states have call successors, (65) [2021-12-06 19:35:55,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:35:55,115 INFO L93 Difference]: Finished difference Result 7302 states and 9905 transitions. [2021-12-06 19:35:55,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-06 19:35:55,117 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 9.894736842105264) internal successors, (188), 21 states have internal predecessors, (188), 4 states have call successors, (67), 2 states have call predecessors, (67), 5 states have return successors, (65), 4 states have call predecessors, (65), 4 states have call successors, (65) Word has length 603 [2021-12-06 19:35:55,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:35:55,131 INFO L225 Difference]: With dead ends: 7302 [2021-12-06 19:35:55,131 INFO L226 Difference]: Without dead ends: 3669 [2021-12-06 19:35:55,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1211 GetRequests, 1185 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=150, Invalid=606, Unknown=0, NotChecked=0, Total=756 [2021-12-06 19:35:55,139 INFO L933 BasicCegarLoop]: 2098 mSDtfsCounter, 28 mSDsluCounter, 33498 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 35596 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:35:55,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 35596 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 19:35:55,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3669 states. [2021-12-06 19:35:55,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3669 to 3669. [2021-12-06 19:35:55,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3669 states, 2654 states have (on average 1.3142426525998492) internal successors, (3488), 2718 states have internal predecessors, (3488), 743 states have call successors, (743), 274 states have call predecessors, (743), 271 states have return successors, (742), 722 states have call predecessors, (742), 742 states have call successors, (742) [2021-12-06 19:35:55,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3669 states to 3669 states and 4973 transitions. [2021-12-06 19:35:55,215 INFO L78 Accepts]: Start accepts. Automaton has 3669 states and 4973 transitions. Word has length 603 [2021-12-06 19:35:55,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:35:55,215 INFO L470 AbstractCegarLoop]: Abstraction has 3669 states and 4973 transitions. [2021-12-06 19:35:55,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 9.894736842105264) internal successors, (188), 21 states have internal predecessors, (188), 4 states have call successors, (67), 2 states have call predecessors, (67), 5 states have return successors, (65), 4 states have call predecessors, (65), 4 states have call successors, (65) [2021-12-06 19:35:55,215 INFO L276 IsEmpty]: Start isEmpty. Operand 3669 states and 4973 transitions. [2021-12-06 19:35:55,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 609 [2021-12-06 19:35:55,221 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:35:55,222 INFO L514 BasicCegarLoop]: trace histogram [51, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:35:55,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-12-06 19:35:55,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:35:55,422 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:35:55,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:35:55,423 INFO L85 PathProgramCache]: Analyzing trace with hash 360470298, now seen corresponding path program 2 times [2021-12-06 19:35:55,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:35:55,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1578290856] [2021-12-06 19:35:55,424 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 19:35:55,425 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:35:55,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:35:55,425 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:35:55,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-12-06 19:35:56,694 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-06 19:35:56,694 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 19:35:56,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 1562 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 19:35:56,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:35:59,239 INFO L134 CoverageAnalysis]: Checked inductivity of 5297 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5297 trivial. 0 not checked. [2021-12-06 19:35:59,239 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:35:59,239 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:35:59,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1578290856] [2021-12-06 19:35:59,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1578290856] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:35:59,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:35:59,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:35:59,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57295418] [2021-12-06 19:35:59,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:35:59,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 19:35:59,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:35:59,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 19:35:59,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:35:59,241 INFO L87 Difference]: Start difference. First operand 3669 states and 4973 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-12-06 19:36:00,344 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:36:01,827 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:36:02,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:36:02,268 INFO L93 Difference]: Finished difference Result 10849 states and 14723 transitions. [2021-12-06 19:36:02,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 19:36:02,268 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 608 [2021-12-06 19:36:02,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:36:02,293 INFO L225 Difference]: With dead ends: 10849 [2021-12-06 19:36:02,293 INFO L226 Difference]: Without dead ends: 7263 [2021-12-06 19:36:02,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 608 GetRequests, 605 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 19:36:02,302 INFO L933 BasicCegarLoop]: 3857 mSDtfsCounter, 2077 mSDsluCounter, 5664 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2077 SdHoareTripleChecker+Valid, 9521 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-12-06 19:36:02,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2077 Valid, 9521 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-12-06 19:36:02,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7263 states. [2021-12-06 19:36:02,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7263 to 7236. [2021-12-06 19:36:02,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7236 states, 5239 states have (on average 1.317617866004963) internal successors, (6903), 5367 states have internal predecessors, (6903), 1458 states have call successors, (1458), 543 states have call predecessors, (1458), 538 states have return successors, (1457), 1417 states have call predecessors, (1457), 1457 states have call successors, (1457) [2021-12-06 19:36:02,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7236 states to 7236 states and 9818 transitions. [2021-12-06 19:36:02,460 INFO L78 Accepts]: Start accepts. Automaton has 7236 states and 9818 transitions. Word has length 608 [2021-12-06 19:36:02,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:36:02,461 INFO L470 AbstractCegarLoop]: Abstraction has 7236 states and 9818 transitions. [2021-12-06 19:36:02,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-12-06 19:36:02,461 INFO L276 IsEmpty]: Start isEmpty. Operand 7236 states and 9818 transitions. [2021-12-06 19:36:02,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 609 [2021-12-06 19:36:02,468 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:36:02,468 INFO L514 BasicCegarLoop]: trace histogram [51, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:36:02,498 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-12-06 19:36:02,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:36:02,669 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:36:02,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:36:02,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1020001820, now seen corresponding path program 1 times [2021-12-06 19:36:02,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:36:02,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [771358354] [2021-12-06 19:36:02,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:36:02,671 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:36:02,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:36:02,672 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:36:02,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-12-06 19:36:05,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:36:05,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 3497 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-06 19:36:05,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:36:06,615 INFO L134 CoverageAnalysis]: Checked inductivity of 5297 backedges. 2493 proven. 28 refuted. 0 times theorem prover too weak. 2776 trivial. 0 not checked. [2021-12-06 19:36:06,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:36:09,267 INFO L134 CoverageAnalysis]: Checked inductivity of 5297 backedges. 138 proven. 354 refuted. 0 times theorem prover too weak. 4805 trivial. 0 not checked. [2021-12-06 19:36:09,268 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:36:09,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [771358354] [2021-12-06 19:36:09,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [771358354] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:36:09,268 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 19:36:09,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2021-12-06 19:36:09,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936306117] [2021-12-06 19:36:09,268 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 19:36:09,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-12-06 19:36:09,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:36:09,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-12-06 19:36:09,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=415, Unknown=0, NotChecked=0, Total=506 [2021-12-06 19:36:09,270 INFO L87 Difference]: Start difference. First operand 7236 states and 9818 transitions. Second operand has 23 states, 21 states have (on average 9.047619047619047) internal successors, (190), 23 states have internal predecessors, (190), 4 states have call successors, (67), 2 states have call predecessors, (67), 5 states have return successors, (65), 4 states have call predecessors, (65), 4 states have call successors, (65) [2021-12-06 19:36:11,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:36:11,003 INFO L93 Difference]: Finished difference Result 14448 states and 19617 transitions. [2021-12-06 19:36:11,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-06 19:36:11,004 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 9.047619047619047) internal successors, (190), 23 states have internal predecessors, (190), 4 states have call successors, (67), 2 states have call predecessors, (67), 5 states have return successors, (65), 4 states have call predecessors, (65), 4 states have call successors, (65) Word has length 608 [2021-12-06 19:36:11,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:36:11,021 INFO L225 Difference]: With dead ends: 14448 [2021-12-06 19:36:11,021 INFO L226 Difference]: Without dead ends: 7241 [2021-12-06 19:36:11,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1221 GetRequests, 1193 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=169, Invalid=701, Unknown=0, NotChecked=0, Total=870 [2021-12-06 19:36:11,032 INFO L933 BasicCegarLoop]: 2098 mSDtfsCounter, 39 mSDsluCounter, 25131 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 27229 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:36:11,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 27229 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-06 19:36:11,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7241 states. [2021-12-06 19:36:11,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7241 to 7241. [2021-12-06 19:36:11,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7241 states, 5244 states have (on average 1.3173150266971778) internal successors, (6908), 5372 states have internal predecessors, (6908), 1458 states have call successors, (1458), 543 states have call predecessors, (1458), 538 states have return successors, (1457), 1417 states have call predecessors, (1457), 1457 states have call successors, (1457) [2021-12-06 19:36:11,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7241 states to 7241 states and 9823 transitions. [2021-12-06 19:36:11,190 INFO L78 Accepts]: Start accepts. Automaton has 7241 states and 9823 transitions. Word has length 608 [2021-12-06 19:36:11,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:36:11,191 INFO L470 AbstractCegarLoop]: Abstraction has 7241 states and 9823 transitions. [2021-12-06 19:36:11,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 9.047619047619047) internal successors, (190), 23 states have internal predecessors, (190), 4 states have call successors, (67), 2 states have call predecessors, (67), 5 states have return successors, (65), 4 states have call predecessors, (65), 4 states have call successors, (65) [2021-12-06 19:36:11,191 INFO L276 IsEmpty]: Start isEmpty. Operand 7241 states and 9823 transitions. [2021-12-06 19:36:11,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 614 [2021-12-06 19:36:11,198 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:36:11,198 INFO L514 BasicCegarLoop]: trace histogram [56, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:36:11,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-12-06 19:36:11,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:36:11,399 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:36:11,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:36:11,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1474397568, now seen corresponding path program 2 times [2021-12-06 19:36:11,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:36:11,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2135263965] [2021-12-06 19:36:11,401 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 19:36:11,401 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:36:11,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:36:11,402 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:36:11,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-12-06 19:36:12,708 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-06 19:36:12,708 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 19:36:12,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 1562 conjuncts, 27 conjunts are in the unsatisfiable core [2021-12-06 19:36:12,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:36:13,937 INFO L134 CoverageAnalysis]: Checked inductivity of 5607 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5607 trivial. 0 not checked. [2021-12-06 19:36:13,937 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:36:13,938 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:36:13,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2135263965] [2021-12-06 19:36:13,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2135263965] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:36:13,938 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:36:13,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 19:36:13,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778625901] [2021-12-06 19:36:13,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:36:13,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 19:36:13,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:36:13,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 19:36:13,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:36:13,940 INFO L87 Difference]: Start difference. First operand 7241 states and 9823 transitions. Second operand has 12 states, 10 states have (on average 13.2) internal successors, (132), 9 states have internal predecessors, (132), 4 states have call successors, (44), 2 states have call predecessors, (44), 5 states have return successors, (41), 5 states have call predecessors, (41), 4 states have call successors, (41) [2021-12-06 19:36:15,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:36:15,133 INFO L93 Difference]: Finished difference Result 16074 states and 22135 transitions. [2021-12-06 19:36:15,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 19:36:15,134 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 13.2) internal successors, (132), 9 states have internal predecessors, (132), 4 states have call successors, (44), 2 states have call predecessors, (44), 5 states have return successors, (41), 5 states have call predecessors, (41), 4 states have call successors, (41) Word has length 613 [2021-12-06 19:36:15,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:36:15,155 INFO L225 Difference]: With dead ends: 16074 [2021-12-06 19:36:15,155 INFO L226 Difference]: Without dead ends: 8917 [2021-12-06 19:36:15,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 617 GetRequests, 602 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2021-12-06 19:36:15,166 INFO L933 BasicCegarLoop]: 2228 mSDtfsCounter, 809 mSDsluCounter, 22160 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 24388 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 19:36:15,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [870 Valid, 24388 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 19:36:15,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8917 states. [2021-12-06 19:36:15,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8917 to 7269. [2021-12-06 19:36:15,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7269 states, 5264 states have (on average 1.3161094224924013) internal successors, (6928), 5392 states have internal predecessors, (6928), 1462 states have call successors, (1462), 543 states have call predecessors, (1462), 542 states have return successors, (1487), 1425 states have call predecessors, (1487), 1461 states have call successors, (1487) [2021-12-06 19:36:15,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7269 states to 7269 states and 9877 transitions. [2021-12-06 19:36:15,365 INFO L78 Accepts]: Start accepts. Automaton has 7269 states and 9877 transitions. Word has length 613 [2021-12-06 19:36:15,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:36:15,366 INFO L470 AbstractCegarLoop]: Abstraction has 7269 states and 9877 transitions. [2021-12-06 19:36:15,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 13.2) internal successors, (132), 9 states have internal predecessors, (132), 4 states have call successors, (44), 2 states have call predecessors, (44), 5 states have return successors, (41), 5 states have call predecessors, (41), 4 states have call successors, (41) [2021-12-06 19:36:15,366 INFO L276 IsEmpty]: Start isEmpty. Operand 7269 states and 9877 transitions. [2021-12-06 19:36:15,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2021-12-06 19:36:15,373 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:36:15,374 INFO L514 BasicCegarLoop]: trace histogram [56, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:36:15,399 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2021-12-06 19:36:15,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:36:15,574 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:36:15,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:36:15,575 INFO L85 PathProgramCache]: Analyzing trace with hash -696340907, now seen corresponding path program 1 times [2021-12-06 19:36:15,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:36:15,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [791163705] [2021-12-06 19:36:15,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:36:15,577 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:36:15,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:36:15,578 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:36:15,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-12-06 19:36:20,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:36:20,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 3549 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 19:36:20,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:36:21,304 INFO L134 CoverageAnalysis]: Checked inductivity of 5607 backedges. 1349 proven. 0 refuted. 0 times theorem prover too weak. 4258 trivial. 0 not checked. [2021-12-06 19:36:21,305 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:36:21,305 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:36:21,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [791163705] [2021-12-06 19:36:21,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [791163705] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:36:21,305 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:36:21,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:36:21,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237157364] [2021-12-06 19:36:21,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:36:21,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 19:36:21,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:36:21,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 19:36:21,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:36:21,307 INFO L87 Difference]: Start difference. First operand 7269 states and 9877 transitions. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2021-12-06 19:36:22,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:36:22,222 INFO L93 Difference]: Finished difference Result 11046 states and 15016 transitions. [2021-12-06 19:36:22,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 19:36:22,223 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 614 [2021-12-06 19:36:22,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:36:22,232 INFO L225 Difference]: With dead ends: 11046 [2021-12-06 19:36:22,232 INFO L226 Difference]: Without dead ends: 3846 [2021-12-06 19:36:22,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 614 GetRequests, 611 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 19:36:22,242 INFO L933 BasicCegarLoop]: 2108 mSDtfsCounter, 3 mSDsluCounter, 4210 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6318 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 19:36:22,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 6318 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-06 19:36:22,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3846 states. [2021-12-06 19:36:22,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3846 to 3700. [2021-12-06 19:36:22,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3700 states, 2676 states have (on average 1.3086696562032885) internal successors, (3502), 2740 states have internal predecessors, (3502), 747 states have call successors, (747), 277 states have call predecessors, (747), 276 states have return successors, (759), 728 states have call predecessors, (759), 746 states have call successors, (759) [2021-12-06 19:36:22,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3700 states to 3700 states and 5008 transitions. [2021-12-06 19:36:22,325 INFO L78 Accepts]: Start accepts. Automaton has 3700 states and 5008 transitions. Word has length 614 [2021-12-06 19:36:22,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:36:22,326 INFO L470 AbstractCegarLoop]: Abstraction has 3700 states and 5008 transitions. [2021-12-06 19:36:22,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2021-12-06 19:36:22,326 INFO L276 IsEmpty]: Start isEmpty. Operand 3700 states and 5008 transitions. [2021-12-06 19:36:22,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2021-12-06 19:36:22,332 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:36:22,332 INFO L514 BasicCegarLoop]: trace histogram [56, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:36:22,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2021-12-06 19:36:22,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:36:22,533 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:36:22,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:36:22,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1850672469, now seen corresponding path program 1 times [2021-12-06 19:36:22,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:36:22,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1602638388] [2021-12-06 19:36:22,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:36:22,537 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:36:22,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:36:22,538 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:36:22,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-12-06 19:36:27,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:36:27,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 3585 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:36:27,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:36:28,217 INFO L134 CoverageAnalysis]: Checked inductivity of 5607 backedges. 1349 proven. 0 refuted. 0 times theorem prover too weak. 4258 trivial. 0 not checked. [2021-12-06 19:36:28,217 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:36:28,217 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:36:28,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1602638388] [2021-12-06 19:36:28,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1602638388] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:36:28,218 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:36:28,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:36:28,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105566160] [2021-12-06 19:36:28,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:36:28,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:36:28,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:36:28,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:36:28,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:36:28,220 INFO L87 Difference]: Start difference. First operand 3700 states and 5008 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2021-12-06 19:36:28,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:36:28,308 INFO L93 Difference]: Finished difference Result 7306 states and 9898 transitions. [2021-12-06 19:36:28,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:36:28,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 619 [2021-12-06 19:36:28,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:36:28,317 INFO L225 Difference]: With dead ends: 7306 [2021-12-06 19:36:28,317 INFO L226 Difference]: Without dead ends: 3700 [2021-12-06 19:36:28,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 618 GetRequests, 617 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 19:36:28,323 INFO L933 BasicCegarLoop]: 2108 mSDtfsCounter, 0 mSDsluCounter, 2104 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4212 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:36:28,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 4212 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:36:28,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3700 states. [2021-12-06 19:36:28,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3700 to 3700. [2021-12-06 19:36:28,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3700 states, 2676 states have (on average 1.3071748878923768) internal successors, (3498), 2740 states have internal predecessors, (3498), 747 states have call successors, (747), 277 states have call predecessors, (747), 276 states have return successors, (759), 728 states have call predecessors, (759), 746 states have call successors, (759) [2021-12-06 19:36:28,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3700 states to 3700 states and 5004 transitions. [2021-12-06 19:36:28,396 INFO L78 Accepts]: Start accepts. Automaton has 3700 states and 5004 transitions. Word has length 619 [2021-12-06 19:36:28,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:36:28,396 INFO L470 AbstractCegarLoop]: Abstraction has 3700 states and 5004 transitions. [2021-12-06 19:36:28,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2021-12-06 19:36:28,397 INFO L276 IsEmpty]: Start isEmpty. Operand 3700 states and 5004 transitions. [2021-12-06 19:36:28,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 622 [2021-12-06 19:36:28,402 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:36:28,403 INFO L514 BasicCegarLoop]: trace histogram [56, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:36:28,465 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (18)] Ended with exit code 0 [2021-12-06 19:36:28,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:36:28,604 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:36:28,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:36:28,604 INFO L85 PathProgramCache]: Analyzing trace with hash 224269777, now seen corresponding path program 1 times [2021-12-06 19:36:28,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:36:28,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1897973637] [2021-12-06 19:36:28,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:36:28,607 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:36:28,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:36:28,608 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:36:28,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-12-06 19:36:33,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:36:34,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 3587 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:36:34,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:36:34,845 INFO L134 CoverageAnalysis]: Checked inductivity of 5607 backedges. 1013 proven. 0 refuted. 0 times theorem prover too weak. 4594 trivial. 0 not checked. [2021-12-06 19:36:34,846 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:36:34,846 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:36:34,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1897973637] [2021-12-06 19:36:34,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1897973637] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:36:34,846 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:36:34,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:36:34,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504304331] [2021-12-06 19:36:34,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:36:34,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:36:34,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:36:34,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:36:34,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:36:34,848 INFO L87 Difference]: Start difference. First operand 3700 states and 5004 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 3 states have call successors, (46), 3 states have call predecessors, (46), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-12-06 19:36:35,938 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:36:36,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:36:36,203 INFO L93 Difference]: Finished difference Result 9644 states and 13042 transitions. [2021-12-06 19:36:36,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:36:36,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 3 states have call successors, (46), 3 states have call predecessors, (46), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 621 [2021-12-06 19:36:36,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:36:36,217 INFO L225 Difference]: With dead ends: 9644 [2021-12-06 19:36:36,217 INFO L226 Difference]: Without dead ends: 6042 [2021-12-06 19:36:36,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 620 GetRequests, 619 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 19:36:36,224 INFO L933 BasicCegarLoop]: 3194 mSDtfsCounter, 1926 mSDsluCounter, 1969 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1926 SdHoareTripleChecker+Valid, 5163 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:36:36,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1926 Valid, 5163 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-06 19:36:36,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6042 states. [2021-12-06 19:36:36,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6042 to 6035. [2021-12-06 19:36:36,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6035 states, 4375 states have (on average 1.3044571428571428) internal successors, (5707), 4482 states have internal predecessors, (5707), 1204 states have call successors, (1204), 454 states have call predecessors, (1204), 455 states have return successors, (1225), 1179 states have call predecessors, (1225), 1203 states have call successors, (1225) [2021-12-06 19:36:36,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6035 states to 6035 states and 8136 transitions. [2021-12-06 19:36:36,354 INFO L78 Accepts]: Start accepts. Automaton has 6035 states and 8136 transitions. Word has length 621 [2021-12-06 19:36:36,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:36:36,355 INFO L470 AbstractCegarLoop]: Abstraction has 6035 states and 8136 transitions. [2021-12-06 19:36:36,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 3 states have call successors, (46), 3 states have call predecessors, (46), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-12-06 19:36:36,355 INFO L276 IsEmpty]: Start isEmpty. Operand 6035 states and 8136 transitions. [2021-12-06 19:36:36,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2021-12-06 19:36:36,361 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:36:36,361 INFO L514 BasicCegarLoop]: trace histogram [56, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:36:36,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-12-06 19:36:36,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:36:36,562 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:36:36,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:36:36,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1377436819, now seen corresponding path program 1 times [2021-12-06 19:36:36,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:36:36,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2113504772] [2021-12-06 19:36:36,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:36:36,566 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:36:36,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:36:36,567 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:36:36,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-12-06 19:36:42,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:36:42,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 3585 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:36:42,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:36:43,319 INFO L134 CoverageAnalysis]: Checked inductivity of 5607 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5607 trivial. 0 not checked. [2021-12-06 19:36:43,320 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:36:43,320 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:36:43,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2113504772] [2021-12-06 19:36:43,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2113504772] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:36:43,320 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:36:43,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:36:43,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825171693] [2021-12-06 19:36:43,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:36:43,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:36:43,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:36:43,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:36:43,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:36:43,322 INFO L87 Difference]: Start difference. First operand 6035 states and 8136 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-12-06 19:36:43,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:36:43,517 INFO L93 Difference]: Finished difference Result 12808 states and 17434 transitions. [2021-12-06 19:36:43,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:36:43,517 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 619 [2021-12-06 19:36:43,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:36:43,534 INFO L225 Difference]: With dead ends: 12808 [2021-12-06 19:36:43,535 INFO L226 Difference]: Without dead ends: 6871 [2021-12-06 19:36:43,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 618 GetRequests, 617 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 19:36:43,545 INFO L933 BasicCegarLoop]: 2171 mSDtfsCounter, 197 mSDsluCounter, 2102 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 4273 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:36:43,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [256 Valid, 4273 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:36:43,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6871 states. [2021-12-06 19:36:43,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6871 to 6055. [2021-12-06 19:36:43,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6055 states, 4391 states have (on average 1.3042587109997723) internal successors, (5727), 4498 states have internal predecessors, (5727), 1208 states have call successors, (1208), 454 states have call predecessors, (1208), 455 states have return successors, (1229), 1183 states have call predecessors, (1229), 1207 states have call successors, (1229) [2021-12-06 19:36:43,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6055 states to 6055 states and 8164 transitions. [2021-12-06 19:36:43,727 INFO L78 Accepts]: Start accepts. Automaton has 6055 states and 8164 transitions. Word has length 619 [2021-12-06 19:36:43,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:36:43,727 INFO L470 AbstractCegarLoop]: Abstraction has 6055 states and 8164 transitions. [2021-12-06 19:36:43,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-12-06 19:36:43,728 INFO L276 IsEmpty]: Start isEmpty. Operand 6055 states and 8164 transitions. [2021-12-06 19:36:43,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 640 [2021-12-06 19:36:43,734 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:36:43,735 INFO L514 BasicCegarLoop]: trace histogram [56, 24, 24, 24, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:36:43,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (20)] Ended with exit code 0 [2021-12-06 19:36:43,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:36:43,936 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:36:43,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:36:43,937 INFO L85 PathProgramCache]: Analyzing trace with hash 426316005, now seen corresponding path program 1 times [2021-12-06 19:36:43,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:36:43,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [171034989] [2021-12-06 19:36:43,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:36:43,939 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:36:43,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:36:43,940 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:36:43,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-12-06 19:36:50,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:36:50,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 3632 conjuncts, 45 conjunts are in the unsatisfiable core [2021-12-06 19:36:50,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:36:52,188 INFO L134 CoverageAnalysis]: Checked inductivity of 5795 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 5726 trivial. 0 not checked. [2021-12-06 19:36:52,188 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:36:52,188 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:36:52,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [171034989] [2021-12-06 19:36:52,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [171034989] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:36:52,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:36:52,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-12-06 19:36:52,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523133335] [2021-12-06 19:36:52,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:36:52,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-06 19:36:52,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:36:52,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-06 19:36:52,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2021-12-06 19:36:52,190 INFO L87 Difference]: Start difference. First operand 6055 states and 8164 transitions. Second operand has 17 states, 13 states have (on average 10.923076923076923) internal successors, (142), 12 states have internal predecessors, (142), 6 states have call successors, (47), 2 states have call predecessors, (47), 6 states have return successors, (44), 8 states have call predecessors, (44), 6 states have call successors, (44) [2021-12-06 19:36:54,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:36:54,158 INFO L93 Difference]: Finished difference Result 12022 states and 16228 transitions. [2021-12-06 19:36:54,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-06 19:36:54,159 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 13 states have (on average 10.923076923076923) internal successors, (142), 12 states have internal predecessors, (142), 6 states have call successors, (47), 2 states have call predecessors, (47), 6 states have return successors, (44), 8 states have call predecessors, (44), 6 states have call successors, (44) Word has length 639 [2021-12-06 19:36:54,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:36:54,170 INFO L225 Difference]: With dead ends: 12022 [2021-12-06 19:36:54,170 INFO L226 Difference]: Without dead ends: 6065 [2021-12-06 19:36:54,178 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 646 GetRequests, 623 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-12-06 19:36:54,178 INFO L933 BasicCegarLoop]: 2103 mSDtfsCounter, 612 mSDsluCounter, 26510 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 615 SdHoareTripleChecker+Valid, 28613 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:36:54,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [615 Valid, 28613 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-06 19:36:54,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6065 states. [2021-12-06 19:36:54,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6065 to 6011. [2021-12-06 19:36:54,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6011 states, 4361 states have (on average 1.3054345333639075) internal successors, (5693), 4468 states have internal predecessors, (5693), 1200 states have call successors, (1200), 452 states have call predecessors, (1200), 449 states have return successors, (1199), 1171 states have call predecessors, (1199), 1199 states have call successors, (1199) [2021-12-06 19:36:54,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6011 states to 6011 states and 8092 transitions. [2021-12-06 19:36:54,325 INFO L78 Accepts]: Start accepts. Automaton has 6011 states and 8092 transitions. Word has length 639 [2021-12-06 19:36:54,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:36:54,326 INFO L470 AbstractCegarLoop]: Abstraction has 6011 states and 8092 transitions. [2021-12-06 19:36:54,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 13 states have (on average 10.923076923076923) internal successors, (142), 12 states have internal predecessors, (142), 6 states have call successors, (47), 2 states have call predecessors, (47), 6 states have return successors, (44), 8 states have call predecessors, (44), 6 states have call successors, (44) [2021-12-06 19:36:54,326 INFO L276 IsEmpty]: Start isEmpty. Operand 6011 states and 8092 transitions. [2021-12-06 19:36:54,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2021-12-06 19:36:54,333 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:36:54,333 INFO L514 BasicCegarLoop]: trace histogram [56, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:36:54,387 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (21)] Ended with exit code 0 [2021-12-06 19:36:54,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:36:54,535 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:36:54,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:36:54,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1652439825, now seen corresponding path program 1 times [2021-12-06 19:36:54,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:36:54,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [821037372] [2021-12-06 19:36:54,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:36:54,544 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:36:54,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:36:54,546 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:36:54,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-12-06 19:37:00,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:37:00,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 3615 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 19:37:00,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:37:01,205 INFO L134 CoverageAnalysis]: Checked inductivity of 5607 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5607 trivial. 0 not checked. [2021-12-06 19:37:01,205 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:37:01,205 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:37:01,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [821037372] [2021-12-06 19:37:01,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [821037372] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:37:01,206 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:37:01,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:37:01,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064083053] [2021-12-06 19:37:01,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:37:01,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 19:37:01,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:37:01,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 19:37:01,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:37:01,207 INFO L87 Difference]: Start difference. First operand 6011 states and 8092 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2021-12-06 19:37:02,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:37:02,361 INFO L93 Difference]: Finished difference Result 12088 states and 16294 transitions. [2021-12-06 19:37:02,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 19:37:02,362 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 626 [2021-12-06 19:37:02,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:37:02,376 INFO L225 Difference]: With dead ends: 12088 [2021-12-06 19:37:02,376 INFO L226 Difference]: Without dead ends: 6175 [2021-12-06 19:37:02,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 626 GetRequests, 623 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 19:37:02,386 INFO L933 BasicCegarLoop]: 2119 mSDtfsCounter, 67 mSDsluCounter, 4160 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 6279 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:37:02,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 6279 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 19:37:02,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6175 states. [2021-12-06 19:37:02,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6175 to 6019. [2021-12-06 19:37:02,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6019 states, 4369 states have (on average 1.3048752574959945) internal successors, (5701), 4476 states have internal predecessors, (5701), 1200 states have call successors, (1200), 452 states have call predecessors, (1200), 449 states have return successors, (1199), 1171 states have call predecessors, (1199), 1199 states have call successors, (1199) [2021-12-06 19:37:02,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6019 states to 6019 states and 8100 transitions. [2021-12-06 19:37:02,538 INFO L78 Accepts]: Start accepts. Automaton has 6019 states and 8100 transitions. Word has length 626 [2021-12-06 19:37:02,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:37:02,539 INFO L470 AbstractCegarLoop]: Abstraction has 6019 states and 8100 transitions. [2021-12-06 19:37:02,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2021-12-06 19:37:02,539 INFO L276 IsEmpty]: Start isEmpty. Operand 6019 states and 8100 transitions. [2021-12-06 19:37:02,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2021-12-06 19:37:02,546 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:37:02,546 INFO L514 BasicCegarLoop]: trace histogram [56, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:37:02,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (22)] Ended with exit code 0 [2021-12-06 19:37:02,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:37:02,747 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:37:02,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:37:02,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1437038356, now seen corresponding path program 1 times [2021-12-06 19:37:02,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:37:02,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1191712753] [2021-12-06 19:37:02,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:37:02,752 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:37:02,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:37:02,754 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:37:02,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-12-06 19:37:08,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:37:09,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 3619 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:37:09,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:37:09,413 INFO L134 CoverageAnalysis]: Checked inductivity of 5608 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5607 trivial. 0 not checked. [2021-12-06 19:37:09,413 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:37:09,413 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:37:09,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1191712753] [2021-12-06 19:37:09,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1191712753] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:37:09,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:37:09,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:37:09,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507097449] [2021-12-06 19:37:09,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:37:09,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:37:09,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:37:09,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:37:09,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:37:09,415 INFO L87 Difference]: Start difference. First operand 6019 states and 8100 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-12-06 19:37:09,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:37:09,607 INFO L93 Difference]: Finished difference Result 11944 states and 16092 transitions. [2021-12-06 19:37:09,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:37:09,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 627 [2021-12-06 19:37:09,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:37:09,621 INFO L225 Difference]: With dead ends: 11944 [2021-12-06 19:37:09,622 INFO L226 Difference]: Without dead ends: 6023 [2021-12-06 19:37:09,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 626 GetRequests, 625 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 19:37:09,632 INFO L933 BasicCegarLoop]: 2102 mSDtfsCounter, 0 mSDsluCounter, 2096 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4198 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:37:09,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 4198 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:37:09,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6023 states. [2021-12-06 19:37:09,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6023 to 6023. [2021-12-06 19:37:09,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6023 states, 4373 states have (on average 1.3045963869197348) internal successors, (5705), 4480 states have internal predecessors, (5705), 1200 states have call successors, (1200), 452 states have call predecessors, (1200), 449 states have return successors, (1199), 1171 states have call predecessors, (1199), 1199 states have call successors, (1199) [2021-12-06 19:37:09,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6023 states to 6023 states and 8104 transitions. [2021-12-06 19:37:09,822 INFO L78 Accepts]: Start accepts. Automaton has 6023 states and 8104 transitions. Word has length 627 [2021-12-06 19:37:09,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:37:09,822 INFO L470 AbstractCegarLoop]: Abstraction has 6023 states and 8104 transitions. [2021-12-06 19:37:09,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-12-06 19:37:09,822 INFO L276 IsEmpty]: Start isEmpty. Operand 6023 states and 8104 transitions. [2021-12-06 19:37:09,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 630 [2021-12-06 19:37:09,829 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:37:09,830 INFO L514 BasicCegarLoop]: trace histogram [56, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:37:09,883 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (23)] Ended with exit code 0 [2021-12-06 19:37:10,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:37:10,032 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:37:10,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:37:10,033 INFO L85 PathProgramCache]: Analyzing trace with hash -661384008, now seen corresponding path program 1 times [2021-12-06 19:37:10,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:37:10,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1803952655] [2021-12-06 19:37:10,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:37:10,040 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:37:10,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:37:10,043 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:37:10,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-12-06 19:37:16,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:37:16,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 3625 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 19:37:16,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:37:16,791 INFO L134 CoverageAnalysis]: Checked inductivity of 5608 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5607 trivial. 0 not checked. [2021-12-06 19:37:16,791 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:37:17,296 INFO L134 CoverageAnalysis]: Checked inductivity of 5608 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5607 trivial. 0 not checked. [2021-12-06 19:37:17,297 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:37:17,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1803952655] [2021-12-06 19:37:17,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1803952655] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:37:17,297 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 19:37:17,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-12-06 19:37:17,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076202555] [2021-12-06 19:37:17,297 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 19:37:17,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 19:37:17,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:37:17,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 19:37:17,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:37:17,299 INFO L87 Difference]: Start difference. First operand 6023 states and 8104 transitions. Second operand has 6 states, 6 states have (on average 26.0) internal successors, (156), 6 states have internal predecessors, (156), 4 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) [2021-12-06 19:37:18,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:37:18,009 INFO L93 Difference]: Finished difference Result 12700 states and 17136 transitions. [2021-12-06 19:37:18,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:37:18,010 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.0) internal successors, (156), 6 states have internal predecessors, (156), 4 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) Word has length 629 [2021-12-06 19:37:18,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:37:18,034 INFO L225 Difference]: With dead ends: 12700 [2021-12-06 19:37:18,034 INFO L226 Difference]: Without dead ends: 6775 [2021-12-06 19:37:18,042 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1257 GetRequests, 1252 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:37:18,043 INFO L933 BasicCegarLoop]: 2207 mSDtfsCounter, 206 mSDsluCounter, 8467 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 10674 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 19:37:18,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 10674 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 19:37:18,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6775 states. [2021-12-06 19:37:18,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6775 to 6091. [2021-12-06 19:37:18,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6091 states, 4433 states have (on average 1.3049853372434017) internal successors, (5785), 4540 states have internal predecessors, (5785), 1208 states have call successors, (1208), 452 states have call predecessors, (1208), 449 states have return successors, (1207), 1179 states have call predecessors, (1207), 1207 states have call successors, (1207) [2021-12-06 19:37:18,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6091 states to 6091 states and 8200 transitions. [2021-12-06 19:37:18,208 INFO L78 Accepts]: Start accepts. Automaton has 6091 states and 8200 transitions. Word has length 629 [2021-12-06 19:37:18,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:37:18,208 INFO L470 AbstractCegarLoop]: Abstraction has 6091 states and 8200 transitions. [2021-12-06 19:37:18,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.0) internal successors, (156), 6 states have internal predecessors, (156), 4 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) [2021-12-06 19:37:18,208 INFO L276 IsEmpty]: Start isEmpty. Operand 6091 states and 8200 transitions. [2021-12-06 19:37:18,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 660 [2021-12-06 19:37:18,218 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:37:18,219 INFO L514 BasicCegarLoop]: trace histogram [56, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:37:18,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (24)] Ended with exit code 0 [2021-12-06 19:37:18,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:37:18,421 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:37:18,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:37:18,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1216736805, now seen corresponding path program 1 times [2021-12-06 19:37:18,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:37:18,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [641058369] [2021-12-06 19:37:18,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:37:18,430 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:37:18,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:37:18,473 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:37:18,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-12-06 19:37:24,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:37:25,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 3745 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 19:37:25,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:37:25,628 INFO L134 CoverageAnalysis]: Checked inductivity of 5671 backedges. 10 proven. 36 refuted. 0 times theorem prover too weak. 5625 trivial. 0 not checked. [2021-12-06 19:37:25,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:37:26,280 INFO L134 CoverageAnalysis]: Checked inductivity of 5671 backedges. 10 proven. 36 refuted. 0 times theorem prover too weak. 5625 trivial. 0 not checked. [2021-12-06 19:37:26,280 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:37:26,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [641058369] [2021-12-06 19:37:26,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [641058369] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:37:26,280 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 19:37:26,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-12-06 19:37:26,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267043117] [2021-12-06 19:37:26,281 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 19:37:26,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 19:37:26,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:37:26,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 19:37:26,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-12-06 19:37:26,282 INFO L87 Difference]: Start difference. First operand 6091 states and 8200 transitions. Second operand has 10 states, 10 states have (on average 18.9) internal successors, (189), 10 states have internal predecessors, (189), 10 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 10 states have call predecessors, (50), 10 states have call successors, (50) [2021-12-06 19:37:29,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:37:29,167 INFO L93 Difference]: Finished difference Result 14152 states and 19122 transitions. [2021-12-06 19:37:29,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 19:37:29,169 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 18.9) internal successors, (189), 10 states have internal predecessors, (189), 10 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 10 states have call predecessors, (50), 10 states have call successors, (50) Word has length 659 [2021-12-06 19:37:29,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:37:29,187 INFO L225 Difference]: With dead ends: 14152 [2021-12-06 19:37:29,187 INFO L226 Difference]: Without dead ends: 8159 [2021-12-06 19:37:29,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1322 GetRequests, 1308 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2021-12-06 19:37:29,197 INFO L933 BasicCegarLoop]: 2397 mSDtfsCounter, 1324 mSDsluCounter, 12632 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1379 SdHoareTripleChecker+Valid, 15029 SdHoareTripleChecker+Invalid, 1231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:37:29,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1379 Valid, 15029 Invalid, 1231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [421 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-06 19:37:29,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8159 states. [2021-12-06 19:37:29,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8159 to 6247. [2021-12-06 19:37:29,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6247 states, 4565 states have (on average 1.3066812705366921) internal successors, (5965), 4672 states have internal predecessors, (5965), 1232 states have call successors, (1232), 452 states have call predecessors, (1232), 449 states have return successors, (1231), 1203 states have call predecessors, (1231), 1231 states have call successors, (1231) [2021-12-06 19:37:29,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6247 states to 6247 states and 8428 transitions. [2021-12-06 19:37:29,429 INFO L78 Accepts]: Start accepts. Automaton has 6247 states and 8428 transitions. Word has length 659 [2021-12-06 19:37:29,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:37:29,430 INFO L470 AbstractCegarLoop]: Abstraction has 6247 states and 8428 transitions. [2021-12-06 19:37:29,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 18.9) internal successors, (189), 10 states have internal predecessors, (189), 10 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 10 states have call predecessors, (50), 10 states have call successors, (50) [2021-12-06 19:37:29,430 INFO L276 IsEmpty]: Start isEmpty. Operand 6247 states and 8428 transitions. [2021-12-06 19:37:29,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 680 [2021-12-06 19:37:29,457 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:37:29,457 INFO L514 BasicCegarLoop]: trace histogram [56, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:37:29,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-12-06 19:37:29,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:37:29,659 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:37:29,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:37:29,661 INFO L85 PathProgramCache]: Analyzing trace with hash 908022961, now seen corresponding path program 2 times [2021-12-06 19:37:29,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:37:29,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1722753616] [2021-12-06 19:37:29,668 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 19:37:29,668 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:37:29,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:37:29,671 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:37:29,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-12-06 19:37:31,133 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-06 19:37:31,133 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 19:37:31,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 1557 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:37:31,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:37:33,747 INFO L134 CoverageAnalysis]: Checked inductivity of 5763 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5763 trivial. 0 not checked. [2021-12-06 19:37:33,748 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:37:33,748 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:37:33,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1722753616] [2021-12-06 19:37:33,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1722753616] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:37:33,748 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:37:33,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 19:37:33,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305104217] [2021-12-06 19:37:33,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:37:33,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:37:33,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:37:33,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:37:33,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:37:33,750 INFO L87 Difference]: Start difference. First operand 6247 states and 8428 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2021-12-06 19:37:33,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:37:33,901 INFO L93 Difference]: Finished difference Result 6736 states and 8918 transitions. [2021-12-06 19:37:33,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:37:33,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 679 [2021-12-06 19:37:33,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:37:33,917 INFO L225 Difference]: With dead ends: 6736 [2021-12-06 19:37:33,917 INFO L226 Difference]: Without dead ends: 6733 [2021-12-06 19:37:33,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 678 GetRequests, 677 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 19:37:33,919 INFO L933 BasicCegarLoop]: 2168 mSDtfsCounter, 1425 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1425 SdHoareTripleChecker+Valid, 2735 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:37:33,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1425 Valid, 2735 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:37:33,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6733 states. [2021-12-06 19:37:34,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6733 to 6733. [2021-12-06 19:37:34,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6733 states, 4892 states have (on average 1.294562551103843) internal successors, (6333), 5003 states have internal predecessors, (6333), 1290 states have call successors, (1290), 553 states have call predecessors, (1290), 550 states have return successors, (1289), 1261 states have call predecessors, (1289), 1289 states have call successors, (1289) [2021-12-06 19:37:34,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6733 states to 6733 states and 8912 transitions. [2021-12-06 19:37:34,102 INFO L78 Accepts]: Start accepts. Automaton has 6733 states and 8912 transitions. Word has length 679 [2021-12-06 19:37:34,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:37:34,103 INFO L470 AbstractCegarLoop]: Abstraction has 6733 states and 8912 transitions. [2021-12-06 19:37:34,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2021-12-06 19:37:34,103 INFO L276 IsEmpty]: Start isEmpty. Operand 6733 states and 8912 transitions. [2021-12-06 19:37:34,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 711 [2021-12-06 19:37:34,113 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:37:34,113 INFO L514 BasicCegarLoop]: trace histogram [56, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:37:34,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-12-06 19:37:34,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:37:34,315 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:37:34,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:37:34,317 INFO L85 PathProgramCache]: Analyzing trace with hash -721405834, now seen corresponding path program 1 times [2021-12-06 19:37:34,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:37:34,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [826687545] [2021-12-06 19:37:34,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:37:34,320 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:37:34,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:37:34,321 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:37:34,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-12-06 19:37:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:37:39,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 3527 conjuncts, 33 conjunts are in the unsatisfiable core [2021-12-06 19:37:39,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:37:41,203 INFO L134 CoverageAnalysis]: Checked inductivity of 5955 backedges. 320 proven. 0 refuted. 0 times theorem prover too weak. 5635 trivial. 0 not checked. [2021-12-06 19:37:41,203 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:37:41,203 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:37:41,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [826687545] [2021-12-06 19:37:41,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [826687545] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:37:41,203 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:37:41,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-06 19:37:41,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734901416] [2021-12-06 19:37:41,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:37:41,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 19:37:41,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:37:41,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 19:37:41,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:37:41,205 INFO L87 Difference]: Start difference. First operand 6733 states and 8912 transitions. Second operand has 13 states, 11 states have (on average 16.454545454545453) internal successors, (181), 10 states have internal predecessors, (181), 4 states have call successors, (60), 2 states have call predecessors, (60), 5 states have return successors, (57), 5 states have call predecessors, (57), 4 states have call successors, (57) [2021-12-06 19:37:42,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:37:42,938 INFO L93 Difference]: Finished difference Result 14915 states and 20160 transitions. [2021-12-06 19:37:42,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 19:37:42,939 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 16.454545454545453) internal successors, (181), 10 states have internal predecessors, (181), 4 states have call successors, (60), 2 states have call predecessors, (60), 5 states have return successors, (57), 5 states have call predecessors, (57), 4 states have call successors, (57) Word has length 710 [2021-12-06 19:37:42,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:37:42,953 INFO L225 Difference]: With dead ends: 14915 [2021-12-06 19:37:42,954 INFO L226 Difference]: Without dead ends: 8280 [2021-12-06 19:37:42,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 716 GetRequests, 699 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2021-12-06 19:37:42,962 INFO L933 BasicCegarLoop]: 2620 mSDtfsCounter, 1387 mSDsluCounter, 27403 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 30023 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-06 19:37:42,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1388 Valid, 30023 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [302 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-06 19:37:42,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8280 states. [2021-12-06 19:37:43,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8280 to 6741. [2021-12-06 19:37:43,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6741 states, 4898 states have (on average 1.2942017149857084) internal successors, (6339), 5009 states have internal predecessors, (6339), 1292 states have call successors, (1292), 553 states have call predecessors, (1292), 550 states have return successors, (1291), 1263 states have call predecessors, (1291), 1291 states have call successors, (1291) [2021-12-06 19:37:43,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6741 states to 6741 states and 8922 transitions. [2021-12-06 19:37:43,178 INFO L78 Accepts]: Start accepts. Automaton has 6741 states and 8922 transitions. Word has length 710 [2021-12-06 19:37:43,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:37:43,179 INFO L470 AbstractCegarLoop]: Abstraction has 6741 states and 8922 transitions. [2021-12-06 19:37:43,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 16.454545454545453) internal successors, (181), 10 states have internal predecessors, (181), 4 states have call successors, (60), 2 states have call predecessors, (60), 5 states have return successors, (57), 5 states have call predecessors, (57), 4 states have call successors, (57) [2021-12-06 19:37:43,179 INFO L276 IsEmpty]: Start isEmpty. Operand 6741 states and 8922 transitions. [2021-12-06 19:37:43,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 743 [2021-12-06 19:37:43,189 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:37:43,190 INFO L514 BasicCegarLoop]: trace histogram [56, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:37:43,242 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (27)] Ended with exit code 0 [2021-12-06 19:37:43,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:37:43,391 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:37:43,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:37:43,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1337680103, now seen corresponding path program 1 times [2021-12-06 19:37:43,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:37:43,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1371922316] [2021-12-06 19:37:43,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:37:43,401 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:37:43,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:37:43,403 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:37:43,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-12-06 19:37:49,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:37:49,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 3878 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-06 19:37:49,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:37:50,376 INFO L134 CoverageAnalysis]: Checked inductivity of 5986 backedges. 328 proven. 0 refuted. 0 times theorem prover too weak. 5658 trivial. 0 not checked. [2021-12-06 19:37:50,377 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:37:50,377 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:37:50,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1371922316] [2021-12-06 19:37:50,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1371922316] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:37:50,377 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:37:50,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 19:37:50,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042464456] [2021-12-06 19:37:50,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:37:50,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 19:37:50,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:37:50,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 19:37:50,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:37:50,379 INFO L87 Difference]: Start difference. First operand 6741 states and 8922 transitions. Second operand has 6 states, 6 states have (on average 32.0) internal successors, (192), 5 states have internal predecessors, (192), 2 states have call successors, (64), 2 states have call predecessors, (64), 3 states have return successors, (61), 3 states have call predecessors, (61), 2 states have call successors, (61) [2021-12-06 19:37:52,625 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:37:53,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:37:53,032 INFO L93 Difference]: Finished difference Result 14961 states and 20227 transitions. [2021-12-06 19:37:53,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:37:53,033 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.0) internal successors, (192), 5 states have internal predecessors, (192), 2 states have call successors, (64), 2 states have call predecessors, (64), 3 states have return successors, (61), 3 states have call predecessors, (61), 2 states have call successors, (61) Word has length 742 [2021-12-06 19:37:53,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:37:53,047 INFO L225 Difference]: With dead ends: 14961 [2021-12-06 19:37:53,047 INFO L226 Difference]: Without dead ends: 8318 [2021-12-06 19:37:53,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 743 GetRequests, 738 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:37:53,054 INFO L933 BasicCegarLoop]: 2652 mSDtfsCounter, 931 mSDsluCounter, 9638 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 202 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 931 SdHoareTripleChecker+Valid, 12290 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:37:53,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [931 Valid, 12290 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 23 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-12-06 19:37:53,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8318 states. [2021-12-06 19:37:53,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8318 to 6751. [2021-12-06 19:37:53,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6751 states, 4906 states have (on average 1.2937219730941705) internal successors, (6347), 5017 states have internal predecessors, (6347), 1292 states have call successors, (1292), 553 states have call predecessors, (1292), 552 states have return successors, (1300), 1265 states have call predecessors, (1300), 1291 states have call successors, (1300) [2021-12-06 19:37:53,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6751 states to 6751 states and 8939 transitions. [2021-12-06 19:37:53,280 INFO L78 Accepts]: Start accepts. Automaton has 6751 states and 8939 transitions. Word has length 742 [2021-12-06 19:37:53,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:37:53,281 INFO L470 AbstractCegarLoop]: Abstraction has 6751 states and 8939 transitions. [2021-12-06 19:37:53,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.0) internal successors, (192), 5 states have internal predecessors, (192), 2 states have call successors, (64), 2 states have call predecessors, (64), 3 states have return successors, (61), 3 states have call predecessors, (61), 2 states have call successors, (61) [2021-12-06 19:37:53,281 INFO L276 IsEmpty]: Start isEmpty. Operand 6751 states and 8939 transitions. [2021-12-06 19:37:53,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 763 [2021-12-06 19:37:53,292 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:37:53,292 INFO L514 BasicCegarLoop]: trace histogram [56, 25, 25, 25, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:37:53,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (28)] Ended with exit code 0 [2021-12-06 19:37:53,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:37:53,494 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:37:53,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:37:53,496 INFO L85 PathProgramCache]: Analyzing trace with hash -46604033, now seen corresponding path program 1 times [2021-12-06 19:37:53,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:37:53,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [870253389] [2021-12-06 19:37:53,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:37:53,504 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:37:53,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:37:53,506 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:37:53,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-12-06 19:37:59,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:37:59,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 3921 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-06 19:37:59,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:38:00,477 INFO L134 CoverageAnalysis]: Checked inductivity of 6182 backedges. 361 proven. 42 refuted. 0 times theorem prover too weak. 5779 trivial. 0 not checked. [2021-12-06 19:38:00,477 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:38:01,868 INFO L134 CoverageAnalysis]: Checked inductivity of 6182 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 6163 trivial. 0 not checked. [2021-12-06 19:38:01,869 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:38:01,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [870253389] [2021-12-06 19:38:01,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [870253389] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:38:01,869 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-06 19:38:01,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2021-12-06 19:38:01,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695387514] [2021-12-06 19:38:01,870 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-06 19:38:01,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-06 19:38:01,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:38:01,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-06 19:38:01,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-12-06 19:38:01,871 INFO L87 Difference]: Start difference. First operand 6751 states and 8939 transitions. Second operand has 15 states, 15 states have (on average 16.4) internal successors, (246), 11 states have internal predecessors, (246), 3 states have call successors, (90), 2 states have call predecessors, (90), 6 states have return successors, (90), 7 states have call predecessors, (90), 3 states have call successors, (90) [2021-12-06 19:38:03,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:38:03,503 INFO L93 Difference]: Finished difference Result 16554 states and 22756 transitions. [2021-12-06 19:38:03,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 19:38:03,504 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 16.4) internal successors, (246), 11 states have internal predecessors, (246), 3 states have call successors, (90), 2 states have call predecessors, (90), 6 states have return successors, (90), 7 states have call predecessors, (90), 3 states have call successors, (90) Word has length 762 [2021-12-06 19:38:03,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:38:03,528 INFO L225 Difference]: With dead ends: 16554 [2021-12-06 19:38:03,528 INFO L226 Difference]: Without dead ends: 9901 [2021-12-06 19:38:03,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1524 GetRequests, 1509 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2021-12-06 19:38:03,539 INFO L933 BasicCegarLoop]: 2660 mSDtfsCounter, 1428 mSDsluCounter, 29208 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1643 SdHoareTripleChecker+Valid, 31868 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:38:03,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1643 Valid, 31868 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 19:38:03,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9901 states. [2021-12-06 19:38:03,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9901 to 6765. [2021-12-06 19:38:03,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6765 states, 4918 states have (on average 1.2930052867019113) internal successors, (6359), 5027 states have internal predecessors, (6359), 1292 states have call successors, (1292), 553 states have call predecessors, (1292), 554 states have return successors, (1304), 1269 states have call predecessors, (1304), 1291 states have call successors, (1304) [2021-12-06 19:38:03,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6765 states to 6765 states and 8955 transitions. [2021-12-06 19:38:03,804 INFO L78 Accepts]: Start accepts. Automaton has 6765 states and 8955 transitions. Word has length 762 [2021-12-06 19:38:03,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:38:03,804 INFO L470 AbstractCegarLoop]: Abstraction has 6765 states and 8955 transitions. [2021-12-06 19:38:03,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 16.4) internal successors, (246), 11 states have internal predecessors, (246), 3 states have call successors, (90), 2 states have call predecessors, (90), 6 states have return successors, (90), 7 states have call predecessors, (90), 3 states have call successors, (90) [2021-12-06 19:38:03,804 INFO L276 IsEmpty]: Start isEmpty. Operand 6765 states and 8955 transitions. [2021-12-06 19:38:03,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 758 [2021-12-06 19:38:03,815 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:38:03,815 INFO L514 BasicCegarLoop]: trace histogram [56, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 9, 9, 9, 9, 9, 9, 9, 9, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:38:03,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-12-06 19:38:04,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:38:04,017 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:38:04,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:04,019 INFO L85 PathProgramCache]: Analyzing trace with hash 18214398, now seen corresponding path program 1 times [2021-12-06 19:38:04,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:38:04,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1785251433] [2021-12-06 19:38:04,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:38:04,027 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:38:04,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:38:04,029 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:38:04,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-12-06 19:38:11,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:12,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 4024 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 19:38:12,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:38:12,797 INFO L134 CoverageAnalysis]: Checked inductivity of 5660 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 5644 trivial. 0 not checked. [2021-12-06 19:38:12,797 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:38:12,797 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:38:12,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1785251433] [2021-12-06 19:38:12,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1785251433] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:38:12,797 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:38:12,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 19:38:12,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267651524] [2021-12-06 19:38:12,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:38:12,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 19:38:12,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:38:12,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 19:38:12,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:38:12,799 INFO L87 Difference]: Start difference. First operand 6765 states and 8955 transitions. Second operand has 6 states, 6 states have (on average 36.166666666666664) internal successors, (217), 6 states have internal predecessors, (217), 2 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2021-12-06 19:38:14,810 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:38:15,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:38:15,353 INFO L93 Difference]: Finished difference Result 13468 states and 17840 transitions. [2021-12-06 19:38:15,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:38:15,354 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 36.166666666666664) internal successors, (217), 6 states have internal predecessors, (217), 2 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 757 [2021-12-06 19:38:15,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:38:15,367 INFO L225 Difference]: With dead ends: 13468 [2021-12-06 19:38:15,367 INFO L226 Difference]: Without dead ends: 6801 [2021-12-06 19:38:15,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 759 GetRequests, 752 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:38:15,376 INFO L933 BasicCegarLoop]: 2107 mSDtfsCounter, 35 mSDsluCounter, 8356 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 10463 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:38:15,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 10463 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-06 19:38:15,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6801 states. [2021-12-06 19:38:15,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6801 to 6777. [2021-12-06 19:38:15,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6777 states, 4930 states have (on average 1.292292089249493) internal successors, (6371), 5039 states have internal predecessors, (6371), 1292 states have call successors, (1292), 553 states have call predecessors, (1292), 554 states have return successors, (1304), 1269 states have call predecessors, (1304), 1291 states have call successors, (1304) [2021-12-06 19:38:15,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6777 states to 6777 states and 8967 transitions. [2021-12-06 19:38:15,608 INFO L78 Accepts]: Start accepts. Automaton has 6777 states and 8967 transitions. Word has length 757 [2021-12-06 19:38:15,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:38:15,608 INFO L470 AbstractCegarLoop]: Abstraction has 6777 states and 8967 transitions. [2021-12-06 19:38:15,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 36.166666666666664) internal successors, (217), 6 states have internal predecessors, (217), 2 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2021-12-06 19:38:15,609 INFO L276 IsEmpty]: Start isEmpty. Operand 6777 states and 8967 transitions. [2021-12-06 19:38:15,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 771 [2021-12-06 19:38:15,620 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:38:15,620 INFO L514 BasicCegarLoop]: trace histogram [56, 25, 25, 25, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:38:15,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (30)] Ended with exit code 0 [2021-12-06 19:38:15,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:38:15,822 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:38:15,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:15,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1115210595, now seen corresponding path program 1 times [2021-12-06 19:38:15,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:38:15,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1300556059] [2021-12-06 19:38:15,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:38:15,828 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:38:15,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:38:15,830 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:38:15,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-12-06 19:38:21,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:21,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 3696 conjuncts, 34 conjunts are in the unsatisfiable core [2021-12-06 19:38:21,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:38:23,627 INFO L134 CoverageAnalysis]: Checked inductivity of 6177 backedges. 350 proven. 0 refuted. 0 times theorem prover too weak. 5827 trivial. 0 not checked. [2021-12-06 19:38:23,627 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:38:23,627 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:38:23,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1300556059] [2021-12-06 19:38:23,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1300556059] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:38:23,628 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:38:23,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-12-06 19:38:23,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030488082] [2021-12-06 19:38:23,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:38:23,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-06 19:38:23,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:38:23,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-06 19:38:23,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2021-12-06 19:38:23,630 INFO L87 Difference]: Start difference. First operand 6777 states and 8967 transitions. Second operand has 14 states, 12 states have (on average 17.25) internal successors, (207), 11 states have internal predecessors, (207), 5 states have call successors, (71), 2 states have call predecessors, (71), 5 states have return successors, (68), 6 states have call predecessors, (68), 5 states have call successors, (68) [2021-12-06 19:38:25,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:38:25,604 INFO L93 Difference]: Finished difference Result 15390 states and 20879 transitions. [2021-12-06 19:38:25,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 19:38:25,605 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 17.25) internal successors, (207), 11 states have internal predecessors, (207), 5 states have call successors, (71), 2 states have call predecessors, (71), 5 states have return successors, (68), 6 states have call predecessors, (68), 5 states have call successors, (68) Word has length 770 [2021-12-06 19:38:25,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:38:25,620 INFO L225 Difference]: With dead ends: 15390 [2021-12-06 19:38:25,620 INFO L226 Difference]: Without dead ends: 8711 [2021-12-06 19:38:25,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 778 GetRequests, 758 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=67, Invalid=395, Unknown=0, NotChecked=0, Total=462 [2021-12-06 19:38:25,629 INFO L933 BasicCegarLoop]: 2759 mSDtfsCounter, 1094 mSDsluCounter, 31748 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1207 SdHoareTripleChecker+Valid, 34507 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-06 19:38:25,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1207 Valid, 34507 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-06 19:38:25,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8711 states. [2021-12-06 19:38:25,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8711 to 6777. [2021-12-06 19:38:25,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6777 states, 4930 states have (on average 1.292292089249493) internal successors, (6371), 5039 states have internal predecessors, (6371), 1292 states have call successors, (1292), 553 states have call predecessors, (1292), 554 states have return successors, (1304), 1269 states have call predecessors, (1304), 1291 states have call successors, (1304) [2021-12-06 19:38:25,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6777 states to 6777 states and 8967 transitions. [2021-12-06 19:38:25,890 INFO L78 Accepts]: Start accepts. Automaton has 6777 states and 8967 transitions. Word has length 770 [2021-12-06 19:38:25,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:38:25,891 INFO L470 AbstractCegarLoop]: Abstraction has 6777 states and 8967 transitions. [2021-12-06 19:38:25,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 17.25) internal successors, (207), 11 states have internal predecessors, (207), 5 states have call successors, (71), 2 states have call predecessors, (71), 5 states have return successors, (68), 6 states have call predecessors, (68), 5 states have call successors, (68) [2021-12-06 19:38:25,891 INFO L276 IsEmpty]: Start isEmpty. Operand 6777 states and 8967 transitions. [2021-12-06 19:38:25,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 812 [2021-12-06 19:38:25,903 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:38:25,903 INFO L514 BasicCegarLoop]: trace histogram [56, 29, 29, 29, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:38:25,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-12-06 19:38:26,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:38:26,105 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:38:26,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:26,107 INFO L85 PathProgramCache]: Analyzing trace with hash -120187487, now seen corresponding path program 1 times [2021-12-06 19:38:26,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:38:26,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1140932025] [2021-12-06 19:38:26,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:38:26,114 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:38:26,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:38:26,117 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:38:26,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-12-06 19:38:32,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:38:32,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 4032 conjuncts, 34 conjunts are in the unsatisfiable core [2021-12-06 19:38:32,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:38:34,616 INFO L134 CoverageAnalysis]: Checked inductivity of 6658 backedges. 565 proven. 0 refuted. 0 times theorem prover too weak. 6093 trivial. 0 not checked. [2021-12-06 19:38:34,616 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:38:34,616 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:38:34,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1140932025] [2021-12-06 19:38:34,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1140932025] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:38:34,617 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:38:34,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-12-06 19:38:34,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717023883] [2021-12-06 19:38:34,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:38:34,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-06 19:38:34,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:38:34,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-06 19:38:34,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2021-12-06 19:38:34,618 INFO L87 Difference]: Start difference. First operand 6777 states and 8967 transitions. Second operand has 17 states, 13 states have (on average 16.923076923076923) internal successors, (220), 11 states have internal predecessors, (220), 6 states have call successors, (73), 2 states have call predecessors, (73), 7 states have return successors, (71), 8 states have call predecessors, (71), 6 states have call successors, (71) [2021-12-06 19:38:36,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:38:36,638 INFO L93 Difference]: Finished difference Result 15085 states and 20384 transitions. [2021-12-06 19:38:36,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-06 19:38:36,639 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 13 states have (on average 16.923076923076923) internal successors, (220), 11 states have internal predecessors, (220), 6 states have call successors, (73), 2 states have call predecessors, (73), 7 states have return successors, (71), 8 states have call predecessors, (71), 6 states have call successors, (71) Word has length 811 [2021-12-06 19:38:36,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:38:36,655 INFO L225 Difference]: With dead ends: 15085 [2021-12-06 19:38:36,655 INFO L226 Difference]: Without dead ends: 8406 [2021-12-06 19:38:36,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 815 GetRequests, 795 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2021-12-06 19:38:36,664 INFO L933 BasicCegarLoop]: 2802 mSDtfsCounter, 489 mSDsluCounter, 35778 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 38580 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:38:36,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [602 Valid, 38580 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-06 19:38:36,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8406 states. [2021-12-06 19:38:36,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8406 to 6781. [2021-12-06 19:38:36,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6781 states, 4934 states have (on average 1.292055127685448) internal successors, (6375), 5041 states have internal predecessors, (6375), 1292 states have call successors, (1292), 553 states have call predecessors, (1292), 554 states have return successors, (1304), 1271 states have call predecessors, (1304), 1291 states have call successors, (1304) [2021-12-06 19:38:36,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6781 states to 6781 states and 8971 transitions. [2021-12-06 19:38:36,933 INFO L78 Accepts]: Start accepts. Automaton has 6781 states and 8971 transitions. Word has length 811 [2021-12-06 19:38:36,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:38:36,933 INFO L470 AbstractCegarLoop]: Abstraction has 6781 states and 8971 transitions. [2021-12-06 19:38:36,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 13 states have (on average 16.923076923076923) internal successors, (220), 11 states have internal predecessors, (220), 6 states have call successors, (73), 2 states have call predecessors, (73), 7 states have return successors, (71), 8 states have call predecessors, (71), 6 states have call successors, (71) [2021-12-06 19:38:36,933 INFO L276 IsEmpty]: Start isEmpty. Operand 6781 states and 8971 transitions. [2021-12-06 19:38:36,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 792 [2021-12-06 19:38:36,945 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:38:36,945 INFO L514 BasicCegarLoop]: trace histogram [56, 27, 27, 27, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:38:37,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2021-12-06 19:38:37,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:38:37,147 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:38:37,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:38:37,149 INFO L85 PathProgramCache]: Analyzing trace with hash -664324153, now seen corresponding path program 2 times [2021-12-06 19:38:37,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 19:38:37,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [90891360] [2021-12-06 19:38:37,157 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 19:38:37,157 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 19:38:37,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 19:38:37,159 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 19:38:37,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-12-06 19:38:38,229 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-06 19:38:38,229 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 19:38:38,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 1109 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 19:38:38,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:38:38,737 INFO L134 CoverageAnalysis]: Checked inductivity of 6406 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6404 trivial. 0 not checked. [2021-12-06 19:38:38,737 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:38:38,737 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 19:38:38,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [90891360] [2021-12-06 19:38:38,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [90891360] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:38:38,738 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:38:38,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 19:38:38,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230607829] [2021-12-06 19:38:38,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:38:38,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:38:38,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 19:38:38,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:38:38,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:38:38,739 INFO L87 Difference]: Start difference. First operand 6781 states and 8971 transitions. Second operand has 5 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 3 states have call successors, (66), 3 states have call predecessors, (66), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2021-12-06 19:38:39,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:38:39,022 INFO L93 Difference]: Finished difference Result 7026 states and 9348 transitions. [2021-12-06 19:38:39,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 19:38:39,023 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 3 states have call successors, (66), 3 states have call predecessors, (66), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) Word has length 791 [2021-12-06 19:38:39,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:38:39,024 INFO L225 Difference]: With dead ends: 7026 [2021-12-06 19:38:39,024 INFO L226 Difference]: Without dead ends: 0 [2021-12-06 19:38:39,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 791 GetRequests, 787 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 19:38:39,031 INFO L933 BasicCegarLoop]: 2176 mSDtfsCounter, 59 mSDsluCounter, 6446 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 8622 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:38:39,031 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 8622 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:38:39,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-06 19:38:39,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-06 19:38:39,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:38:39,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-06 19:38:39,033 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 791 [2021-12-06 19:38:39,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:38:39,033 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 19:38:39,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 3 states have call successors, (66), 3 states have call predecessors, (66), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2021-12-06 19:38:39,033 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-06 19:38:39,033 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-06 19:38:39,035 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 19:38:39,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2021-12-06 19:38:39,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46cb3788-39d1-4bdc-82f7-2510e03be17c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 19:38:39,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.