./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--ethernet--sis--sis900.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d6a0fa-bd01-4e06-92b6-bee42f391b0a/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d6a0fa-bd01-4e06-92b6-bee42f391b0a/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d6a0fa-bd01-4e06-92b6-bee42f391b0a/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d6a0fa-bd01-4e06-92b6-bee42f391b0a/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d6a0fa-bd01-4e06-92b6-bee42f391b0a/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d6a0fa-bd01-4e06-92b6-bee42f391b0a/bin/uautomizer-DQz5hQGWxF --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 8a589a2971b8b26c84b19dd15ca599e2c024bda8a102f55ffa19d72f19d12686 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:07:32,670 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:07:32,672 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:07:32,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:07:32,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:07:32,710 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:07:32,711 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:07:32,714 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:07:32,716 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:07:32,717 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:07:32,719 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:07:32,720 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:07:32,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:07:32,723 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:07:32,724 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:07:32,726 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:07:32,727 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:07:32,729 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:07:32,731 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:07:32,734 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:07:32,736 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:07:32,738 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:07:32,740 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:07:32,741 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:07:32,744 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:07:32,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:07:32,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:07:32,747 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:07:32,748 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:07:32,749 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:07:32,750 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:07:32,751 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:07:32,752 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:07:32,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:07:32,755 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:07:32,755 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:07:32,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:07:32,757 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:07:32,757 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:07:32,758 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:07:32,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:07:32,760 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d6a0fa-bd01-4e06-92b6-bee42f391b0a/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-20 06:07:32,786 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:07:32,786 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:07:32,787 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:07:32,787 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:07:32,788 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:07:32,788 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:07:32,789 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:07:32,789 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:07:32,789 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:07:32,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:07:32,790 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:07:32,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:07:32,790 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:07:32,790 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:07:32,791 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:07:32,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:07:32,791 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:07:32,791 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:07:32,792 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:07:32,792 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:07:32,792 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:07:32,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:07:32,792 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:07:32,793 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:07:32,793 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:07:32,793 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:07:32,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 06:07:32,793 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:07:32,794 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:07:32,794 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:07:32,794 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:07:32,794 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_69d6a0fa-bd01-4e06-92b6-bee42f391b0a/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d6a0fa-bd01-4e06-92b6-bee42f391b0a/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a589a2971b8b26c84b19dd15ca599e2c024bda8a102f55ffa19d72f19d12686 [2021-11-20 06:07:33,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:07:33,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:07:33,070 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:07:33,071 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:07:33,072 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:07:33,073 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d6a0fa-bd01-4e06-92b6-bee42f391b0a/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2021-11-20 06:07:33,167 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d6a0fa-bd01-4e06-92b6-bee42f391b0a/bin/uautomizer-DQz5hQGWxF/data/d3f9df8be/1e24d1a19c984f588a22ba6f6a8cd049/FLAGc20048153 [2021-11-20 06:07:34,049 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:07:34,049 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d6a0fa-bd01-4e06-92b6-bee42f391b0a/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2021-11-20 06:07:34,088 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d6a0fa-bd01-4e06-92b6-bee42f391b0a/bin/uautomizer-DQz5hQGWxF/data/d3f9df8be/1e24d1a19c984f588a22ba6f6a8cd049/FLAGc20048153 [2021-11-20 06:07:34,540 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d6a0fa-bd01-4e06-92b6-bee42f391b0a/bin/uautomizer-DQz5hQGWxF/data/d3f9df8be/1e24d1a19c984f588a22ba6f6a8cd049 [2021-11-20 06:07:34,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:07:34,551 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:07:34,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:07:34,555 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:07:34,558 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:07:34,559 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:07:34" (1/1) ... [2021-11-20 06:07:34,560 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60fe7b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:34, skipping insertion in model container [2021-11-20 06:07:34,560 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:07:34" (1/1) ... [2021-11-20 06:07:34,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:07:34,689 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:07:36,792 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_69d6a0fa-bd01-4e06-92b6-bee42f391b0a/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[280896,280909] [2021-11-20 06:07:36,856 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:07:36,977 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:07:37,419 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_69d6a0fa-bd01-4e06-92b6-bee42f391b0a/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[280896,280909] [2021-11-20 06:07:37,429 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:07:37,662 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:07:37,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:37 WrapperNode [2021-11-20 06:07:37,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:07:37,665 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:07:37,666 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:07:37,666 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:07:37,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:37" (1/1) ... [2021-11-20 06:07:37,796 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:37" (1/1) ... [2021-11-20 06:07:38,016 INFO L137 Inliner]: procedures = 274, calls = 1587, calls flagged for inlining = 149, calls inlined = 146, statements flattened = 4283 [2021-11-20 06:07:38,017 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:07:38,017 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:07:38,017 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:07:38,017 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:07:38,027 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:37" (1/1) ... [2021-11-20 06:07:38,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:37" (1/1) ... [2021-11-20 06:07:38,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:37" (1/1) ... [2021-11-20 06:07:38,050 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:37" (1/1) ... [2021-11-20 06:07:38,193 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:37" (1/1) ... [2021-11-20 06:07:38,229 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:37" (1/1) ... [2021-11-20 06:07:38,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:37" (1/1) ... [2021-11-20 06:07:38,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:07:38,290 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:07:38,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:07:38,291 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:07:38,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:37" (1/1) ... [2021-11-20 06:07:38,302 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:07:38,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d6a0fa-bd01-4e06-92b6-bee42f391b0a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:07:38,333 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d6a0fa-bd01-4e06-92b6-bee42f391b0a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:07:38,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d6a0fa-bd01-4e06-92b6-bee42f391b0a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:07:38,385 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rxfilter [2021-11-20 06:07:38,385 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rxfilter [2021-11-20 06:07:38,385 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2021-11-20 06:07:38,385 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2021-11-20 06:07:38,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_3 [2021-11-20 06:07:38,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_3 [2021-11-20 06:07:38,386 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-20 06:07:38,386 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-20 06:07:38,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 06:07:38,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 06:07:38,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-20 06:07:38,386 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-20 06:07:38,386 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-20 06:07:38,386 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-20 06:07:38,387 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-20 06:07:38,387 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-20 06:07:38,387 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-20 06:07:38,387 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-20 06:07:38,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-11-20 06:07:38,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-11-20 06:07:38,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 06:07:38,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 06:07:38,388 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_reset [2021-11-20 06:07:38,388 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_reset [2021-11-20 06:07:38,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-20 06:07:38,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-20 06:07:38,388 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-20 06:07:38,388 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-20 06:07:38,388 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-20 06:07:38,388 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-20 06:07:38,389 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-20 06:07:38,389 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-20 06:07:38,389 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-20 06:07:38,389 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-20 06:07:38,389 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_default_phy [2021-11-20 06:07:38,389 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_default_phy [2021-11-20 06:07:38,389 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-11-20 06:07:38,389 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-11-20 06:07:38,390 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-20 06:07:38,390 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-20 06:07:38,390 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-20 06:07:38,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-20 06:07:38,390 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-20 06:07:38,390 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-20 06:07:38,391 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-20 06:07:38,391 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-20 06:07:38,391 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-20 06:07:38,391 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-20 06:07:38,391 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_check_mode [2021-11-20 06:07:38,392 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_check_mode [2021-11-20 06:07:38,392 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-20 06:07:38,392 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-20 06:07:38,392 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2021-11-20 06:07:38,392 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2021-11-20 06:07:38,392 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-20 06:07:38,393 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-20 06:07:38,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 06:07:38,394 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-20 06:07:38,394 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-20 06:07:38,395 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-11-20 06:07:38,395 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-11-20 06:07:38,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 06:07:38,395 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-20 06:07:38,395 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-20 06:07:38,396 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-20 06:07:38,396 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-20 06:07:38,396 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-20 06:07:38,396 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-20 06:07:38,396 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-20 06:07:38,396 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-20 06:07:38,397 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-20 06:07:38,397 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-20 06:07:38,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-11-20 06:07:38,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-11-20 06:07:38,398 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rx_ring [2021-11-20 06:07:38,398 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rx_ring [2021-11-20 06:07:38,398 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_remove [2021-11-20 06:07:38,398 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_remove [2021-11-20 06:07:38,398 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-20 06:07:38,398 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-20 06:07:38,398 INFO L130 BoogieDeclarations]: Found specification of procedure sis630_set_eq [2021-11-20 06:07:38,398 INFO L138 BoogieDeclarations]: Found implementation of procedure sis630_set_eq [2021-11-20 06:07:38,399 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_device [2021-11-20 06:07:38,399 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_device [2021-11-20 06:07:38,399 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-20 06:07:38,399 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-20 06:07:38,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 06:07:38,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 06:07:38,399 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-11-20 06:07:38,399 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-11-20 06:07:38,400 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-11-20 06:07:38,400 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-11-20 06:07:38,400 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-20 06:07:38,400 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-20 06:07:38,401 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_tx_ring [2021-11-20 06:07:38,401 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_tx_ring [2021-11-20 06:07:38,402 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-20 06:07:38,402 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-20 06:07:38,402 INFO L130 BoogieDeclarations]: Found specification of procedure eth_hw_addr_random [2021-11-20 06:07:38,402 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_hw_addr_random [2021-11-20 06:07:38,403 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-20 06:07:38,403 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-20 06:07:38,403 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-20 06:07:38,403 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-20 06:07:38,403 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2021-11-20 06:07:38,403 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2021-11-20 06:07:38,403 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_mode [2021-11-20 06:07:38,404 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_mode [2021-11-20 06:07:38,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 06:07:38,405 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_poll [2021-11-20 06:07:38,405 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_poll [2021-11-20 06:07:38,405 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-11-20 06:07:38,405 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-11-20 06:07:38,406 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-20 06:07:38,406 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-20 06:07:38,406 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-20 06:07:38,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-20 06:07:38,407 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-20 06:07:38,407 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-20 06:07:38,410 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-20 06:07:38,410 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-20 06:07:38,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-20 06:07:38,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-20 06:07:38,411 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-20 06:07:38,412 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-20 06:07:38,413 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_resume [2021-11-20 06:07:38,413 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_resume [2021-11-20 06:07:38,413 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-20 06:07:38,418 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-20 06:07:38,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 06:07:38,419 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev16 [2021-11-20 06:07:38,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev16 [2021-11-20 06:07:38,419 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-20 06:07:38,419 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-20 06:07:38,419 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_interrupt [2021-11-20 06:07:38,419 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_interrupt [2021-11-20 06:07:38,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 06:07:38,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 06:07:38,420 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_reset_phy [2021-11-20 06:07:38,420 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_reset_phy [2021-11-20 06:07:38,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-20 06:07:38,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-20 06:07:38,420 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_config [2021-11-20 06:07:38,420 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_config [2021-11-20 06:07:38,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 06:07:38,420 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2021-11-20 06:07:38,420 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2021-11-20 06:07:38,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-20 06:07:38,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-20 06:07:38,421 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev8 [2021-11-20 06:07:38,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev8 [2021-11-20 06:07:38,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:07:38,421 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_idle [2021-11-20 06:07:38,421 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_idle [2021-11-20 06:07:38,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 06:07:38,421 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-11-20 06:07:38,421 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-11-20 06:07:38,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-11-20 06:07:38,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-11-20 06:07:38,422 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2021-11-20 06:07:38,422 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2021-11-20 06:07:38,422 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-20 06:07:38,422 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-20 06:07:38,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_3 [2021-11-20 06:07:38,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_3 [2021-11-20 06:07:38,422 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_tx_timeout [2021-11-20 06:07:38,423 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_tx_timeout [2021-11-20 06:07:38,423 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-20 06:07:38,423 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-20 06:07:38,423 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ioctl [2021-11-20 06:07:38,423 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ioctl [2021-11-20 06:07:38,423 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-20 06:07:38,423 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-20 06:07:38,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 06:07:38,423 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-11-20 06:07:38,423 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-11-20 06:07:38,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:07:38,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:07:39,206 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:07:39,212 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:07:39,569 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 06:07:42,498 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:07:42,520 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:07:42,520 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 06:07:42,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:07:42 BoogieIcfgContainer [2021-11-20 06:07:42,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:07:42,527 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:07:42,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:07:42,531 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:07:42,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:07:34" (1/3) ... [2021-11-20 06:07:42,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73d7c20f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:07:42, skipping insertion in model container [2021-11-20 06:07:42,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:07:37" (2/3) ... [2021-11-20 06:07:42,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73d7c20f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:07:42, skipping insertion in model container [2021-11-20 06:07:42,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:07:42" (3/3) ... [2021-11-20 06:07:42,534 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2021-11-20 06:07:42,540 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:07:42,540 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 06:07:42,599 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:07:42,606 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 [2021-11-20 06:07:42,607 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 06:07:42,668 INFO L276 IsEmpty]: Start isEmpty. Operand has 1706 states, 1176 states have (on average 1.3265306122448979) internal successors, (1560), 1200 states have internal predecessors, (1560), 446 states have call successors, (446), 83 states have call predecessors, (446), 82 states have return successors, (439), 435 states have call predecessors, (439), 439 states have call successors, (439) [2021-11-20 06:07:42,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-11-20 06:07:42,706 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:07:42,707 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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] [2021-11-20 06:07:42,708 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:07:42,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:07:42,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1411471056, now seen corresponding path program 1 times [2021-11-20 06:07:42,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:07:42,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382954070] [2021-11-20 06:07:42,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:07:42,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:07:43,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:43,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:07:43,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:43,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:07:43,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:43,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:07:43,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:43,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:07:43,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:43,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:07:43,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:43,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:07:43,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:43,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 06:07:43,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:43,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:07:43,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:43,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:07:43,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:43,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 06:07:43,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:43,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:07:43,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:43,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:07:43,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:43,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 06:07:43,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:43,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:07:43,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:43,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:07:43,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:43,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 06:07:43,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:43,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:07:43,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:43,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:07:43,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:43,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-20 06:07:43,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:43,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-20 06:07:43,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:43,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 06:07:43,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:43,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-20 06:07:43,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:43,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-11-20 06:07:43,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:43,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-20 06:07:43,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:43,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-20 06:07:43,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:44,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-20 06:07:44,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:44,019 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-20 06:07:44,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:07:44,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382954070] [2021-11-20 06:07:44,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382954070] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:07:44,021 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:07:44,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 06:07:44,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867520740] [2021-11-20 06:07:44,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:07:44,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:07:44,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:07:44,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:07:44,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:07:44,078 INFO L87 Difference]: Start difference. First operand has 1706 states, 1176 states have (on average 1.3265306122448979) internal successors, (1560), 1200 states have internal predecessors, (1560), 446 states have call successors, (446), 83 states have call predecessors, (446), 82 states have return successors, (439), 435 states have call predecessors, (439), 439 states have call successors, (439) Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-20 06:07:49,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:07:49,433 INFO L93 Difference]: Finished difference Result 3618 states and 5281 transitions. [2021-11-20 06:07:49,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:07:49,437 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 178 [2021-11-20 06:07:49,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:07:49,486 INFO L225 Difference]: With dead ends: 3618 [2021-11-20 06:07:49,487 INFO L226 Difference]: Without dead ends: 1897 [2021-11-20 06:07:49,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:07:49,522 INFO L933 BasicCegarLoop]: 2145 mSDtfsCounter, 1895 mSDsluCounter, 3306 mSDsCounter, 0 mSdLazyCounter, 2512 mSolverCounterSat, 1889 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1962 SdHoareTripleChecker+Valid, 5451 SdHoareTripleChecker+Invalid, 4401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1889 IncrementalHoareTripleChecker+Valid, 2512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2021-11-20 06:07:49,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1962 Valid, 5451 Invalid, 4401 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1889 Valid, 2512 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2021-11-20 06:07:49,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1897 states. [2021-11-20 06:07:49,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1897 to 1686. [2021-11-20 06:07:49,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1686 states, 1165 states have (on average 1.3167381974248926) internal successors, (1534), 1180 states have internal predecessors, (1534), 439 states have call successors, (439), 82 states have call predecessors, (439), 81 states have return successors, (438), 434 states have call predecessors, (438), 438 states have call successors, (438) [2021-11-20 06:07:49,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1686 states to 1686 states and 2411 transitions. [2021-11-20 06:07:49,787 INFO L78 Accepts]: Start accepts. Automaton has 1686 states and 2411 transitions. Word has length 178 [2021-11-20 06:07:49,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:07:49,788 INFO L470 AbstractCegarLoop]: Abstraction has 1686 states and 2411 transitions. [2021-11-20 06:07:49,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-20 06:07:49,788 INFO L276 IsEmpty]: Start isEmpty. Operand 1686 states and 2411 transitions. [2021-11-20 06:07:49,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-11-20 06:07:49,809 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:07:49,809 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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] [2021-11-20 06:07:49,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 06:07:49,810 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:07:49,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:07:49,811 INFO L85 PathProgramCache]: Analyzing trace with hash 419462204, now seen corresponding path program 1 times [2021-11-20 06:07:49,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:07:49,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361569944] [2021-11-20 06:07:49,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:07:49,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:07:50,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:50,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:07:50,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:50,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:07:50,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:50,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:07:50,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:50,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:07:50,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:50,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:07:50,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:50,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:07:50,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:50,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 06:07:50,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:50,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:07:50,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:50,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:07:50,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:50,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 06:07:50,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:50,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:07:50,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:50,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:07:50,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:50,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 06:07:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:50,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:07:50,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:50,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:07:50,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:50,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 06:07:50,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:50,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:07:50,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:50,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:07:50,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:50,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-20 06:07:50,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:50,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-20 06:07:50,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:50,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 06:07:50,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:50,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-20 06:07:50,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:50,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-11-20 06:07:50,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:50,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-20 06:07:50,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:50,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-20 06:07:50,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:50,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-20 06:07:50,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:07:50,564 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-20 06:07:50,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:07:50,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361569944] [2021-11-20 06:07:50,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361569944] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:07:50,565 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:07:50,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 06:07:50,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124132135] [2021-11-20 06:07:50,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:07:50,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 06:07:50,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:07:50,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 06:07:50,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:07:50,570 INFO L87 Difference]: Start difference. First operand 1686 states and 2411 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-20 06:07:59,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:07:59,808 INFO L93 Difference]: Finished difference Result 5427 states and 7844 transitions. [2021-11-20 06:07:59,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-20 06:07:59,808 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 178 [2021-11-20 06:07:59,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:07:59,843 INFO L225 Difference]: With dead ends: 5427 [2021-11-20 06:07:59,843 INFO L226 Difference]: Without dead ends: 3769 [2021-11-20 06:07:59,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-11-20 06:07:59,856 INFO L933 BasicCegarLoop]: 2370 mSDtfsCounter, 6957 mSDsluCounter, 7045 mSDsCounter, 0 mSdLazyCounter, 5241 mSolverCounterSat, 5497 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7276 SdHoareTripleChecker+Valid, 9415 SdHoareTripleChecker+Invalid, 10738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5497 IncrementalHoareTripleChecker+Valid, 5241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:07:59,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7276 Valid, 9415 Invalid, 10738 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5497 Valid, 5241 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2021-11-20 06:07:59,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3769 states. [2021-11-20 06:08:00,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3769 to 3338. [2021-11-20 06:08:00,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3338 states, 2308 states have (on average 1.317157712305026) internal successors, (3040), 2342 states have internal predecessors, (3040), 867 states have call successors, (867), 163 states have call predecessors, (867), 162 states have return successors, (866), 854 states have call predecessors, (866), 866 states have call successors, (866) [2021-11-20 06:08:00,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3338 states to 3338 states and 4773 transitions. [2021-11-20 06:08:00,080 INFO L78 Accepts]: Start accepts. Automaton has 3338 states and 4773 transitions. Word has length 178 [2021-11-20 06:08:00,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:08:00,081 INFO L470 AbstractCegarLoop]: Abstraction has 3338 states and 4773 transitions. [2021-11-20 06:08:00,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-20 06:08:00,082 INFO L276 IsEmpty]: Start isEmpty. Operand 3338 states and 4773 transitions. [2021-11-20 06:08:00,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-11-20 06:08:00,093 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:08:00,093 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:08:00,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 06:08:00,094 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:08:00,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:08:00,095 INFO L85 PathProgramCache]: Analyzing trace with hash 773468645, now seen corresponding path program 1 times [2021-11-20 06:08:00,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:08:00,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470834550] [2021-11-20 06:08:00,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:08:00,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:08:00,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:00,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:08:00,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:00,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:08:00,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:00,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:08:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:00,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:08:00,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:00,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:08:00,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:00,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:08:00,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:00,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 06:08:00,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:00,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:08:00,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:00,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:08:00,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:00,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 06:08:00,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:00,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:08:00,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:00,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:08:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:00,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 06:08:00,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:00,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:08:00,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:00,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:08:00,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:00,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 06:08:00,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:00,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:08:00,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:00,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:08:00,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:00,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-20 06:08:00,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:00,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-20 06:08:00,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:00,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 06:08:00,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:00,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-20 06:08:00,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:00,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-20 06:08:00,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:00,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-20 06:08:00,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:00,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-20 06:08:00,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:00,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-20 06:08:00,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:00,663 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-20 06:08:00,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:08:00,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470834550] [2021-11-20 06:08:00,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470834550] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:08:00,664 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:08:00,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 06:08:00,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790513738] [2021-11-20 06:08:00,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:08:00,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 06:08:00,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:08:00,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 06:08:00,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:08:00,667 INFO L87 Difference]: Start difference. First operand 3338 states and 4773 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-20 06:08:10,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:08:10,319 INFO L93 Difference]: Finished difference Result 10810 states and 15611 transitions. [2021-11-20 06:08:10,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-20 06:08:10,320 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 179 [2021-11-20 06:08:10,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:08:10,386 INFO L225 Difference]: With dead ends: 10810 [2021-11-20 06:08:10,386 INFO L226 Difference]: Without dead ends: 7500 [2021-11-20 06:08:10,409 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-11-20 06:08:10,410 INFO L933 BasicCegarLoop]: 2387 mSDtfsCounter, 5589 mSDsluCounter, 8605 mSDsCounter, 0 mSdLazyCounter, 7022 mSolverCounterSat, 4207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5905 SdHoareTripleChecker+Valid, 10992 SdHoareTripleChecker+Invalid, 11229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4207 IncrementalHoareTripleChecker+Valid, 7022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2021-11-20 06:08:10,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5905 Valid, 10992 Invalid, 11229 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4207 Valid, 7022 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2021-11-20 06:08:10,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7500 states. [2021-11-20 06:08:10,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7500 to 6647. [2021-11-20 06:08:10,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6647 states, 4600 states have (on average 1.3169565217391304) internal successors, (6058), 4667 states have internal predecessors, (6058), 1722 states have call successors, (1722), 325 states have call predecessors, (1722), 324 states have return successors, (1721), 1698 states have call predecessors, (1721), 1721 states have call successors, (1721) [2021-11-20 06:08:10,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6647 states to 6647 states and 9501 transitions. [2021-11-20 06:08:10,981 INFO L78 Accepts]: Start accepts. Automaton has 6647 states and 9501 transitions. Word has length 179 [2021-11-20 06:08:10,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:08:10,983 INFO L470 AbstractCegarLoop]: Abstraction has 6647 states and 9501 transitions. [2021-11-20 06:08:10,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-20 06:08:10,985 INFO L276 IsEmpty]: Start isEmpty. Operand 6647 states and 9501 transitions. [2021-11-20 06:08:10,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-20 06:08:10,998 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:08:10,998 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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] [2021-11-20 06:08:10,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 06:08:10,999 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:08:10,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:08:10,999 INFO L85 PathProgramCache]: Analyzing trace with hash 2055801823, now seen corresponding path program 1 times [2021-11-20 06:08:11,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:08:11,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221253203] [2021-11-20 06:08:11,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:08:11,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:08:11,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:11,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:08:11,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:11,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:08:11,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:11,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:08:11,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:11,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:08:11,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:11,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:08:11,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:11,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:08:11,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:11,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 06:08:11,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:11,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:08:11,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:11,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:08:11,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:11,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 06:08:11,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:11,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:08:11,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:11,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:08:11,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:11,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 06:08:11,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:11,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:08:11,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:11,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:08:11,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:11,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 06:08:11,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:11,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:08:11,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:11,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:08:11,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:11,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-20 06:08:11,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:11,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-20 06:08:11,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:11,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 06:08:11,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:11,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-20 06:08:11,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:11,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-20 06:08:11,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:11,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-20 06:08:11,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:11,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-20 06:08:11,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:11,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-20 06:08:11,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:11,513 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-20 06:08:11,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:08:11,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221253203] [2021-11-20 06:08:11,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221253203] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:08:11,514 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:08:11,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 06:08:11,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963329871] [2021-11-20 06:08:11,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:08:11,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 06:08:11,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:08:11,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 06:08:11,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:08:11,516 INFO L87 Difference]: Start difference. First operand 6647 states and 9501 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-20 06:08:19,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:08:19,363 INFO L93 Difference]: Finished difference Result 21588 states and 31145 transitions. [2021-11-20 06:08:19,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-20 06:08:19,373 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 180 [2021-11-20 06:08:19,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:08:19,484 INFO L225 Difference]: With dead ends: 21588 [2021-11-20 06:08:19,484 INFO L226 Difference]: Without dead ends: 14969 [2021-11-20 06:08:19,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-11-20 06:08:19,523 INFO L933 BasicCegarLoop]: 2361 mSDtfsCounter, 6951 mSDsluCounter, 7001 mSDsCounter, 0 mSdLazyCounter, 5237 mSolverCounterSat, 5514 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7267 SdHoareTripleChecker+Valid, 9362 SdHoareTripleChecker+Invalid, 10751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5514 IncrementalHoareTripleChecker+Valid, 5237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:08:19,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7267 Valid, 9362 Invalid, 10751 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5514 Valid, 5237 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2021-11-20 06:08:19,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14969 states. [2021-11-20 06:08:20,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14969 to 13270. [2021-11-20 06:08:20,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13270 states, 9189 states have (on average 1.3165741647622158) internal successors, (12098), 9321 states have internal predecessors, (12098), 3431 states have call successors, (3431), 650 states have call predecessors, (3431), 649 states have return successors, (3430), 3386 states have call predecessors, (3430), 3430 states have call successors, (3430) [2021-11-20 06:08:20,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13270 states to 13270 states and 18959 transitions. [2021-11-20 06:08:20,494 INFO L78 Accepts]: Start accepts. Automaton has 13270 states and 18959 transitions. Word has length 180 [2021-11-20 06:08:20,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:08:20,496 INFO L470 AbstractCegarLoop]: Abstraction has 13270 states and 18959 transitions. [2021-11-20 06:08:20,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-20 06:08:20,498 INFO L276 IsEmpty]: Start isEmpty. Operand 13270 states and 18959 transitions. [2021-11-20 06:08:20,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-20 06:08:20,510 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:08:20,510 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:08:20,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 06:08:20,510 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:08:20,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:08:20,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1820143993, now seen corresponding path program 1 times [2021-11-20 06:08:20,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:08:20,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666058875] [2021-11-20 06:08:20,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:08:20,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:08:20,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:20,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:08:20,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:20,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:08:20,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:20,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:08:20,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:20,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:08:20,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:20,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:08:20,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:20,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:08:20,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:20,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 06:08:20,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:20,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:08:20,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:20,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:08:20,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:20,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 06:08:20,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:20,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:08:20,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:20,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:08:20,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:20,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 06:08:20,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:20,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:08:20,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:20,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:08:20,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:20,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 06:08:20,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:20,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:08:20,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:20,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:08:20,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:20,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-20 06:08:20,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:20,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-20 06:08:20,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:20,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 06:08:20,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:20,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-20 06:08:20,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:20,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-20 06:08:20,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:20,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-20 06:08:20,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:20,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-20 06:08:20,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:20,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-11-20 06:08:20,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:20,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-11-20 06:08:20,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:20,899 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2021-11-20 06:08:20,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:08:20,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666058875] [2021-11-20 06:08:20,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666058875] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:08:20,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:08:20,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:08:20,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837612590] [2021-11-20 06:08:20,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:08:20,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:08:20,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:08:20,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:08:20,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:08:20,902 INFO L87 Difference]: Start difference. First operand 13270 states and 18959 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-20 06:08:27,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:08:27,555 INFO L93 Difference]: Finished difference Result 39963 states and 57434 transitions. [2021-11-20 06:08:27,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 06:08:27,555 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 193 [2021-11-20 06:08:27,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:08:27,693 INFO L225 Difference]: With dead ends: 39963 [2021-11-20 06:08:27,693 INFO L226 Difference]: Without dead ends: 26721 [2021-11-20 06:08:27,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-11-20 06:08:27,741 INFO L933 BasicCegarLoop]: 2272 mSDtfsCounter, 5137 mSDsluCounter, 3975 mSDsCounter, 0 mSdLazyCounter, 3634 mSolverCounterSat, 3895 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5376 SdHoareTripleChecker+Valid, 6247 SdHoareTripleChecker+Invalid, 7529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3895 IncrementalHoareTripleChecker+Valid, 3634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2021-11-20 06:08:27,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5376 Valid, 6247 Invalid, 7529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3895 Valid, 3634 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2021-11-20 06:08:27,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26721 states. [2021-11-20 06:08:29,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26721 to 23658. [2021-11-20 06:08:29,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23658 states, 16421 states have (on average 1.313561902441995) internal successors, (21570), 16693 states have internal predecessors, (21570), 6019 states have call successors, (6019), 1226 states have call predecessors, (6019), 1217 states have return successors, (6018), 5898 states have call predecessors, (6018), 6018 states have call successors, (6018) [2021-11-20 06:08:29,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23658 states to 23658 states and 33607 transitions. [2021-11-20 06:08:29,278 INFO L78 Accepts]: Start accepts. Automaton has 23658 states and 33607 transitions. Word has length 193 [2021-11-20 06:08:29,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:08:29,279 INFO L470 AbstractCegarLoop]: Abstraction has 23658 states and 33607 transitions. [2021-11-20 06:08:29,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-20 06:08:29,279 INFO L276 IsEmpty]: Start isEmpty. Operand 23658 states and 33607 transitions. [2021-11-20 06:08:29,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-11-20 06:08:29,286 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:08:29,287 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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] [2021-11-20 06:08:29,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 06:08:29,287 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:08:29,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:08:29,288 INFO L85 PathProgramCache]: Analyzing trace with hash 2051492776, now seen corresponding path program 1 times [2021-11-20 06:08:29,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:08:29,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569201513] [2021-11-20 06:08:29,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:08:29,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:08:29,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:29,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:08:29,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:29,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:08:29,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:29,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:08:29,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:29,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:08:29,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:29,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:08:29,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:29,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:08:29,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:29,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 06:08:29,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:29,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:08:29,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:29,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:08:29,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:29,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 06:08:29,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:29,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:08:29,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:29,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:08:29,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:29,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 06:08:29,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:29,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:08:29,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:29,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:08:29,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:29,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 06:08:29,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:29,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:08:29,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:29,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:08:29,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:29,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-20 06:08:29,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:29,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-20 06:08:29,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:29,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 06:08:29,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:29,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-20 06:08:29,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:29,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-20 06:08:29,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:29,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-20 06:08:29,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:29,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-20 06:08:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:29,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-20 06:08:29,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:29,740 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-20 06:08:29,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:08:29,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569201513] [2021-11-20 06:08:29,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569201513] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:08:29,743 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:08:29,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 06:08:29,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864380119] [2021-11-20 06:08:29,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:08:29,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 06:08:29,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:08:29,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 06:08:29,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:08:29,745 INFO L87 Difference]: Start difference. First operand 23658 states and 33607 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-20 06:08:40,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:08:40,006 INFO L93 Difference]: Finished difference Result 76792 states and 110135 transitions. [2021-11-20 06:08:40,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-20 06:08:40,009 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 181 [2021-11-20 06:08:40,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:08:40,334 INFO L225 Difference]: With dead ends: 76792 [2021-11-20 06:08:40,334 INFO L226 Difference]: Without dead ends: 53162 [2021-11-20 06:08:40,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-11-20 06:08:40,444 INFO L933 BasicCegarLoop]: 2361 mSDtfsCounter, 5597 mSDsluCounter, 8540 mSDsCounter, 0 mSdLazyCounter, 7011 mSolverCounterSat, 4247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5913 SdHoareTripleChecker+Valid, 10901 SdHoareTripleChecker+Invalid, 11258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4247 IncrementalHoareTripleChecker+Valid, 7011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:08:40,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5913 Valid, 10901 Invalid, 11258 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4247 Valid, 7011 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2021-11-20 06:08:40,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53162 states. [2021-11-20 06:08:43,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53162 to 47147. [2021-11-20 06:08:43,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47147 states, 32724 states have (on average 1.312981298129813) internal successors, (42966), 33258 states have internal predecessors, (42966), 11987 states have call successors, (11987), 2452 states have call predecessors, (11987), 2435 states have return successors, (11986), 11754 states have call predecessors, (11986), 11986 states have call successors, (11986) [2021-11-20 06:08:43,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47147 states to 47147 states and 66939 transitions. [2021-11-20 06:08:43,667 INFO L78 Accepts]: Start accepts. Automaton has 47147 states and 66939 transitions. Word has length 181 [2021-11-20 06:08:43,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:08:43,670 INFO L470 AbstractCegarLoop]: Abstraction has 47147 states and 66939 transitions. [2021-11-20 06:08:43,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-20 06:08:43,670 INFO L276 IsEmpty]: Start isEmpty. Operand 47147 states and 66939 transitions. [2021-11-20 06:08:43,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-11-20 06:08:43,679 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:08:43,680 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:08:43,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 06:08:43,680 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:08:43,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:08:43,681 INFO L85 PathProgramCache]: Analyzing trace with hash 700303173, now seen corresponding path program 1 times [2021-11-20 06:08:43,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:08:43,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39989563] [2021-11-20 06:08:43,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:08:43,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:08:43,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:44,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:08:44,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:44,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:08:44,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:44,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:08:44,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:44,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:08:44,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:44,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:08:44,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:44,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:08:44,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:44,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 06:08:44,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:44,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:08:44,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:44,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:08:44,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:44,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 06:08:44,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:44,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:08:44,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:44,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:08:44,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:44,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 06:08:44,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:44,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:08:44,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:44,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:08:44,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:44,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 06:08:44,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:44,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:08:44,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:44,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:08:44,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:44,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-20 06:08:44,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:44,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-20 06:08:44,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:44,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 06:08:44,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:44,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-20 06:08:44,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:44,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-20 06:08:44,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:44,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-20 06:08:44,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:44,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-20 06:08:44,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:44,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-20 06:08:44,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:44,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-20 06:08:44,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:44,392 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2021-11-20 06:08:44,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:08:44,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39989563] [2021-11-20 06:08:44,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39989563] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:08:44,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1357190966] [2021-11-20 06:08:44,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:08:44,394 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:08:44,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d6a0fa-bd01-4e06-92b6-bee42f391b0a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:08:44,396 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d6a0fa-bd01-4e06-92b6-bee42f391b0a/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:08:44,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d6a0fa-bd01-4e06-92b6-bee42f391b0a/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 06:08:45,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:45,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 2373 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 06:08:45,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:08:45,720 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-20 06:08:45,721 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:08:45,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1357190966] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:08:45,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:08:45,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2021-11-20 06:08:45,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143070311] [2021-11-20 06:08:45,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:08:45,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:08:45,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:08:45,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:08:45,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-11-20 06:08:45,724 INFO L87 Difference]: Start difference. First operand 47147 states and 66939 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-20 06:08:48,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:08:48,336 INFO L93 Difference]: Finished difference Result 118105 states and 167645 transitions. [2021-11-20 06:08:48,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 06:08:48,336 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 191 [2021-11-20 06:08:48,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:08:48,890 INFO L225 Difference]: With dead ends: 118105 [2021-11-20 06:08:48,890 INFO L226 Difference]: Without dead ends: 70986 [2021-11-20 06:08:49,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552 [2021-11-20 06:08:49,252 INFO L933 BasicCegarLoop]: 3077 mSDtfsCounter, 2429 mSDsluCounter, 14676 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2433 SdHoareTripleChecker+Valid, 17753 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:08:49,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2433 Valid, 17753 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:08:49,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70986 states. [2021-11-20 06:08:52,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70986 to 70691. [2021-11-20 06:08:52,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70691 states, 49082 states have (on average 1.313414286296402) internal successors, (64465), 49902 states have internal predecessors, (64465), 17947 states have call successors, (17947), 3670 states have call predecessors, (17947), 3661 states have return successors, (17986), 17594 states have call predecessors, (17986), 17946 states have call successors, (17986) [2021-11-20 06:08:52,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70691 states to 70691 states and 100398 transitions. [2021-11-20 06:08:52,872 INFO L78 Accepts]: Start accepts. Automaton has 70691 states and 100398 transitions. Word has length 191 [2021-11-20 06:08:52,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:08:52,873 INFO L470 AbstractCegarLoop]: Abstraction has 70691 states and 100398 transitions. [2021-11-20 06:08:52,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-20 06:08:52,873 INFO L276 IsEmpty]: Start isEmpty. Operand 70691 states and 100398 transitions. [2021-11-20 06:08:52,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-11-20 06:08:52,883 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:08:52,883 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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] [2021-11-20 06:08:52,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d6a0fa-bd01-4e06-92b6-bee42f391b0a/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 06:08:53,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d6a0fa-bd01-4e06-92b6-bee42f391b0a/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:08:53,108 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:08:53,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:08:53,108 INFO L85 PathProgramCache]: Analyzing trace with hash -519166975, now seen corresponding path program 1 times [2021-11-20 06:08:53,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:08:53,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102348267] [2021-11-20 06:08:53,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:08:53,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:08:53,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:53,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:08:53,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:53,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:08:53,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:53,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:08:53,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:53,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:08:53,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:53,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:08:53,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:53,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:08:53,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:53,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 06:08:53,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:53,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:08:53,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:53,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:08:53,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:53,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 06:08:53,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:53,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:08:53,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:53,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:08:53,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:53,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 06:08:53,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:53,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:08:53,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:53,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:08:53,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:53,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 06:08:53,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:53,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:08:53,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:53,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:08:53,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:53,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-20 06:08:53,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:53,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-20 06:08:53,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:53,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 06:08:53,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:53,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-20 06:08:53,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:53,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-11-20 06:08:53,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:53,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-20 06:08:53,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:53,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 06:08:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:53,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-20 06:08:53,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:53,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-20 06:08:53,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:53,870 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-20 06:08:53,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:08:53,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102348267] [2021-11-20 06:08:53,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102348267] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:08:53,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691202484] [2021-11-20 06:08:53,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:08:53,872 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:08:53,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d6a0fa-bd01-4e06-92b6-bee42f391b0a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:08:53,876 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d6a0fa-bd01-4e06-92b6-bee42f391b0a/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:08:53,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d6a0fa-bd01-4e06-92b6-bee42f391b0a/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 06:08:54,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:08:54,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 2375 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 06:08:54,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:08:55,035 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-20 06:08:55,035 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:08:55,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691202484] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:08:55,035 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:08:55,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2021-11-20 06:08:55,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020292161] [2021-11-20 06:08:55,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:08:55,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:08:55,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:08:55,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:08:55,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-11-20 06:08:55,038 INFO L87 Difference]: Start difference. First operand 70691 states and 100398 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-20 06:08:58,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:08:58,569 INFO L93 Difference]: Finished difference Result 165299 states and 234655 transitions. [2021-11-20 06:08:58,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 06:08:58,569 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 192 [2021-11-20 06:08:58,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:08:59,061 INFO L225 Difference]: With dead ends: 165299 [2021-11-20 06:08:59,061 INFO L226 Difference]: Without dead ends: 94636 [2021-11-20 06:08:59,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2021-11-20 06:08:59,314 INFO L933 BasicCegarLoop]: 3130 mSDtfsCounter, 2429 mSDsluCounter, 14876 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2433 SdHoareTripleChecker+Valid, 18006 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:08:59,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2433 Valid, 18006 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:08:59,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94636 states. [2021-11-20 06:09:03,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94636 to 94299. [2021-11-20 06:09:03,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94299 states, 65480 states have (on average 1.313439218081857) internal successors, (86004), 66618 states have internal predecessors, (86004), 23907 states have call successors, (23907), 4888 states have call predecessors, (23907), 4911 states have return successors, (24010), 23426 states have call predecessors, (24010), 23906 states have call successors, (24010) [2021-11-20 06:09:04,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94299 states to 94299 states and 133921 transitions. [2021-11-20 06:09:04,356 INFO L78 Accepts]: Start accepts. Automaton has 94299 states and 133921 transitions. Word has length 192 [2021-11-20 06:09:04,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:09:04,357 INFO L470 AbstractCegarLoop]: Abstraction has 94299 states and 133921 transitions. [2021-11-20 06:09:04,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-20 06:09:04,357 INFO L276 IsEmpty]: Start isEmpty. Operand 94299 states and 133921 transitions. [2021-11-20 06:09:04,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-20 06:09:04,370 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:09:04,370 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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] [2021-11-20 06:09:04,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d6a0fa-bd01-4e06-92b6-bee42f391b0a/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 06:09:04,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d6a0fa-bd01-4e06-92b6-bee42f391b0a/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:09:04,584 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:09:04,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:09:04,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1521526796, now seen corresponding path program 1 times [2021-11-20 06:09:04,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:09:04,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185686727] [2021-11-20 06:09:04,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:09:04,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:09:04,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:04,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:09:04,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:04,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:09:04,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:04,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:09:04,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:04,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:09:04,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:04,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:09:04,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:04,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:09:04,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:04,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 06:09:04,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:04,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:09:04,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:05,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:09:05,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:05,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 06:09:05,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:05,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:09:05,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:05,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:09:05,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:05,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 06:09:05,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:05,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:09:05,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:05,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:09:05,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:05,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 06:09:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:05,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:09:05,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:05,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:09:05,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:05,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-20 06:09:05,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:05,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-20 06:09:05,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:05,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 06:09:05,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:05,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-20 06:09:05,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:05,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-20 06:09:05,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:05,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-20 06:09:05,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:05,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-20 06:09:05,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:05,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-11-20 06:09:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:05,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-11-20 06:09:05,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:05,578 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-20 06:09:05,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:09:05,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185686727] [2021-11-20 06:09:05,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185686727] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:09:05,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466411098] [2021-11-20 06:09:05,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:09:05,580 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:09:05,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d6a0fa-bd01-4e06-92b6-bee42f391b0a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:09:05,584 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d6a0fa-bd01-4e06-92b6-bee42f391b0a/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:09:05,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d6a0fa-bd01-4e06-92b6-bee42f391b0a/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 06:09:06,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:06,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 2377 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 06:09:06,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:09:06,859 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-20 06:09:06,859 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:09:06,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466411098] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:09:06,860 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:09:06,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2021-11-20 06:09:06,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033569675] [2021-11-20 06:09:06,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:09:06,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:09:06,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:09:06,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:09:06,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-11-20 06:09:06,863 INFO L87 Difference]: Start difference. First operand 94299 states and 133921 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-20 06:09:11,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:09:11,802 INFO L93 Difference]: Finished difference Result 212493 states and 301665 transitions. [2021-11-20 06:09:11,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 06:09:11,803 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 193 [2021-11-20 06:09:11,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:09:12,569 INFO L225 Difference]: With dead ends: 212493 [2021-11-20 06:09:12,570 INFO L226 Difference]: Without dead ends: 118222 [2021-11-20 06:09:12,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2021-11-20 06:09:12,937 INFO L933 BasicCegarLoop]: 3130 mSDtfsCounter, 2429 mSDsluCounter, 14876 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2433 SdHoareTripleChecker+Valid, 18006 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:09:12,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2433 Valid, 18006 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:09:13,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118222 states. [2021-11-20 06:09:17,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118222 to 94343. [2021-11-20 06:09:17,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94343 states, 65512 states have (on average 1.3132861155208206) internal successors, (86036), 66654 states have internal predecessors, (86036), 23907 states have call successors, (23907), 4888 states have call predecessors, (23907), 4923 states have return successors, (24028), 23434 states have call predecessors, (24028), 23906 states have call successors, (24028) [2021-11-20 06:09:18,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94343 states to 94343 states and 133971 transitions. [2021-11-20 06:09:18,098 INFO L78 Accepts]: Start accepts. Automaton has 94343 states and 133971 transitions. Word has length 193 [2021-11-20 06:09:18,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:09:18,098 INFO L470 AbstractCegarLoop]: Abstraction has 94343 states and 133971 transitions. [2021-11-20 06:09:18,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-20 06:09:18,099 INFO L276 IsEmpty]: Start isEmpty. Operand 94343 states and 133971 transitions. [2021-11-20 06:09:18,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-11-20 06:09:18,113 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:09:18,114 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 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] [2021-11-20 06:09:18,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d6a0fa-bd01-4e06-92b6-bee42f391b0a/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 06:09:18,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d6a0fa-bd01-4e06-92b6-bee42f391b0a/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-20 06:09:18,328 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:09:18,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:09:18,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1548086952, now seen corresponding path program 1 times [2021-11-20 06:09:18,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:09:18,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485186245] [2021-11-20 06:09:18,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:09:18,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:09:18,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:18,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:09:18,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:18,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:09:18,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:18,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:09:18,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:18,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-20 06:09:18,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:18,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:09:18,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:18,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:09:18,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:18,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-20 06:09:18,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:18,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:09:18,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:18,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:09:18,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:18,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 06:09:18,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:18,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:09:18,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:18,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:09:18,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:18,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-20 06:09:18,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:18,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:09:18,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:18,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:09:18,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:18,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-20 06:09:18,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:18,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 06:09:18,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:18,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:09:18,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:18,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-20 06:09:18,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:18,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-20 06:09:18,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:18,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 06:09:18,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:18,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-20 06:09:18,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:18,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-20 06:09:18,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:18,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-20 06:09:18,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:18,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-20 06:09:18,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:18,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-20 06:09:18,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:18,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-20 06:09:18,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:18,905 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-20 06:09:18,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:09:18,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485186245] [2021-11-20 06:09:18,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485186245] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:09:18,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230135003] [2021-11-20 06:09:18,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:09:18,907 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:09:18,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d6a0fa-bd01-4e06-92b6-bee42f391b0a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:09:18,912 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d6a0fa-bd01-4e06-92b6-bee42f391b0a/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:09:18,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69d6a0fa-bd01-4e06-92b6-bee42f391b0a/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 06:09:19,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:09:19,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 2379 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 06:09:19,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:09:20,074 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-20 06:09:20,074 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:09:20,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230135003] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:09:20,074 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:09:20,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2021-11-20 06:09:20,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968165558] [2021-11-20 06:09:20,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:09:20,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:09:20,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:09:20,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:09:20,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-11-20 06:09:20,076 INFO L87 Difference]: Start difference. First operand 94343 states and 133971 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-20 06:09:24,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:09:24,028 INFO L93 Difference]: Finished difference Result 212553 states and 301731 transitions. [2021-11-20 06:09:24,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 06:09:24,029 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 194 [2021-11-20 06:09:24,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:09:24,843 INFO L225 Difference]: With dead ends: 212553 [2021-11-20 06:09:24,843 INFO L226 Difference]: Without dead ends: 118238