./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--packetengines--hamachi.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--packetengines--hamachi.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc --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 375c8b791fa06d541fb014bd5076ab9979e5fb4b76e2515aaac1f292cd2a1d79 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:41:16,617 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:41:16,624 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:41:16,668 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:41:16,671 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:41:16,675 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:41:16,677 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:41:16,681 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:41:16,684 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:41:16,690 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:41:16,691 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:41:16,692 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:41:16,694 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:41:16,697 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:41:16,698 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:41:16,700 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:41:16,702 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:41:16,703 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:41:16,705 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:41:16,713 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:41:16,715 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:41:16,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:41:16,718 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:41:16,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:41:16,722 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:41:16,722 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:41:16,722 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:41:16,723 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:41:16,724 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:41:16,725 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:41:16,725 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:41:16,726 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:41:16,727 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:41:16,728 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:41:16,729 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:41:16,729 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:41:16,735 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:41:16,737 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:41:16,737 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:41:16,738 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:41:16,739 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:41:16,740 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 20:41:16,766 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:41:16,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:41:16,766 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:41:16,767 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:41:16,767 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:41:16,767 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:41:16,768 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:41:16,768 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:41:16,768 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:41:16,769 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:41:16,769 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:41:16,769 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:41:16,769 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:41:16,769 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:41:16,770 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:41:16,770 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:41:16,770 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:41:16,770 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:41:16,770 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:41:16,771 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:41:16,771 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:41:16,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:41:16,771 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:41:16,771 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:41:16,772 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:41:16,772 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:41:16,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:41:16,779 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:41:16,779 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:41:16,779 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:41:16,779 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_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 375c8b791fa06d541fb014bd5076ab9979e5fb4b76e2515aaac1f292cd2a1d79 [2022-11-02 20:41:17,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:41:17,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:41:17,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:41:17,089 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:41:17,090 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:41:17,092 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--packetengines--hamachi.ko-entry_point.cil.out.i [2022-11-02 20:41:17,171 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc/data/690fa1380/def00172e39d44f181cd9217fbdde189/FLAGe9a2bd295 [2022-11-02 20:41:18,171 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:41:18,172 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--packetengines--hamachi.ko-entry_point.cil.out.i [2022-11-02 20:41:18,223 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc/data/690fa1380/def00172e39d44f181cd9217fbdde189/FLAGe9a2bd295 [2022-11-02 20:41:18,535 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc/data/690fa1380/def00172e39d44f181cd9217fbdde189 [2022-11-02 20:41:18,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:41:18,540 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:41:18,541 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:41:18,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:41:18,548 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:41:18,549 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:41:18" (1/1) ... [2022-11-02 20:41:18,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@275f6345 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:18, skipping insertion in model container [2022-11-02 20:41:18,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:41:18" (1/1) ... [2022-11-02 20:41:18,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:41:18,759 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:41:20,818 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_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--packetengines--hamachi.ko-entry_point.cil.out.i[258653,258666] [2022-11-02 20:41:20,879 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:41:20,947 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:41:21,401 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_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--packetengines--hamachi.ko-entry_point.cil.out.i[258653,258666] [2022-11-02 20:41:21,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:41:21,623 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:41:21,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:21 WrapperNode [2022-11-02 20:41:21,626 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:41:21,627 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:41:21,627 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:41:21,628 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:41:21,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:21" (1/1) ... [2022-11-02 20:41:21,725 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:21" (1/1) ... [2022-11-02 20:41:21,926 INFO L138 Inliner]: procedures = 226, calls = 1428, calls flagged for inlining = 121, calls inlined = 118, statements flattened = 3761 [2022-11-02 20:41:21,927 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:41:21,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:41:21,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:41:21,928 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:41:21,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:21" (1/1) ... [2022-11-02 20:41:21,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:21" (1/1) ... [2022-11-02 20:41:21,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:21" (1/1) ... [2022-11-02 20:41:21,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:21" (1/1) ... [2022-11-02 20:41:22,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:21" (1/1) ... [2022-11-02 20:41:22,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:21" (1/1) ... [2022-11-02 20:41:22,202 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:21" (1/1) ... [2022-11-02 20:41:22,220 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:21" (1/1) ... [2022-11-02 20:41:22,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:41:22,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:41:22,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:41:22,255 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:41:22,256 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:21" (1/1) ... [2022-11-02 20:41:22,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:41:22,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:41:22,290 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:41:22,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:41:22,356 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_get_drvinfo [2022-11-02 20:41:22,356 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_get_drvinfo [2022-11-02 20:41:22,356 INFO L130 BoogieDeclarations]: Found specification of procedure check_if_running [2022-11-02 20:41:22,356 INFO L138 BoogieDeclarations]: Found implementation of procedure check_if_running [2022-11-02 20:41:22,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-02 20:41:22,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-02 20:41:22,357 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-02 20:41:22,357 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-02 20:41:22,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-02 20:41:22,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-02 20:41:22,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-02 20:41:22,358 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-02 20:41:22,358 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-02 20:41:22,358 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-02 20:41:22,358 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-02 20:41:22,359 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-02 20:41:22,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-02 20:41:22,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-02 20:41:22,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-02 20:41:22,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-02 20:41:22,361 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2022-11-02 20:41:22,361 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2022-11-02 20:41:22,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-02 20:41:22,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-02 20:41:22,361 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-02 20:41:22,361 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-02 20:41:22,362 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-02 20:41:22,362 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-02 20:41:22,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-02 20:41:22,363 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-02 20:41:22,363 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-02 20:41:22,363 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-02 20:41:22,364 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-02 20:41:22,364 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-02 20:41:22,364 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-02 20:41:22,364 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-02 20:41:22,364 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-02 20:41:22,364 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-02 20:41:22,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:41:22,365 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-02 20:41:22,365 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-02 20:41:22,366 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-02 20:41:22,366 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-02 20:41:22,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:41:22,366 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-02 20:41:22,367 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-02 20:41:22,367 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-02 20:41:22,367 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-02 20:41:22,367 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-02 20:41:22,367 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-02 20:41:22,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-02 20:41:22,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-02 20:41:22,368 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-02 20:41:22,368 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-02 20:41:22,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:41:22,369 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-02 20:41:22,369 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-02 20:41:22,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-02 20:41:22,371 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-02 20:41:22,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-02 20:41:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-11-02 20:41:22,372 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-11-02 20:41:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-02 20:41:22,373 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-02 20:41:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-02 20:41:22,374 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-02 20:41:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-02 20:41:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-02 20:41:22,375 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-02 20:41:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-02 20:41:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-02 20:41:22,376 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-02 20:41:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:41:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-11-02 20:41:22,376 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-11-02 20:41:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-02 20:41:22,377 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-02 20:41:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-02 20:41:22,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-02 20:41:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_ioctl [2022-11-02 20:41:22,377 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_ioctl [2022-11-02 20:41:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-02 20:41:22,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-02 20:41:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-02 20:41:22,378 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-02 20:41:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:41:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-02 20:41:22,379 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-02 20:41:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-02 20:41:22,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-02 20:41:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-02 20:41:22,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-02 20:41:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:41:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-02 20:41:22,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-02 20:41:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:41:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-02 20:41:22,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-02 20:41:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:41:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-02 20:41:22,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-02 20:41:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_get_stats [2022-11-02 20:41:22,384 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_get_stats [2022-11-02 20:41:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2022-11-02 20:41:22,384 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2022-11-02 20:41:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-02 20:41:22,385 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-02 20:41:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_tx_timeout [2022-11-02 20:41:22,385 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_tx_timeout [2022-11-02 20:41:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-02 20:41:22,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-02 20:41:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-02 20:41:22,386 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-02 20:41:22,387 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-02 20:41:22,387 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-02 20:41:22,387 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-02 20:41:22,387 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-02 20:41:22,388 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-02 20:41:22,389 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-02 20:41:22,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:41:22,391 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-11-02 20:41:22,392 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-11-02 20:41:22,392 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2022-11-02 20:41:22,392 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2022-11-02 20:41:22,393 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-02 20:41:22,394 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-02 20:41:22,394 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-11-02 20:41:22,395 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-11-02 20:41:22,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:41:22,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:41:23,359 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:41:23,363 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:41:24,411 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-02 20:41:27,092 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:41:27,120 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:41:27,120 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:41:27,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:41:27 BoogieIcfgContainer [2022-11-02 20:41:27,125 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:41:27,128 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:41:27,129 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:41:27,133 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:41:27,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:41:18" (1/3) ... [2022-11-02 20:41:27,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@295210ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:41:27, skipping insertion in model container [2022-11-02 20:41:27,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:21" (2/3) ... [2022-11-02 20:41:27,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@295210ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:41:27, skipping insertion in model container [2022-11-02 20:41:27,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:41:27" (3/3) ... [2022-11-02 20:41:27,137 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--packetengines--hamachi.ko-entry_point.cil.out.i [2022-11-02 20:41:27,160 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:41:27,160 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:41:27,331 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:41:27,343 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@790f3600, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:41:27,344 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:41:27,354 INFO L276 IsEmpty]: Start isEmpty. Operand has 1175 states, 832 states have (on average 1.3353365384615385) internal successors, (1111), 860 states have internal predecessors, (1111), 285 states have call successors, (285), 57 states have call predecessors, (285), 56 states have return successors, (277), 267 states have call predecessors, (277), 277 states have call successors, (277) [2022-11-02 20:41:27,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-11-02 20:41:27,390 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:41:27,391 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:41:27,391 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:41:27,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:41:27,398 INFO L85 PathProgramCache]: Analyzing trace with hash 112228501, now seen corresponding path program 1 times [2022-11-02 20:41:27,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:41:27,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772668217] [2022-11-02 20:41:27,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:41:27,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:41:27,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:28,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:41:28,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:28,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:41:28,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:28,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:41:28,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:28,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:41:28,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:28,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:41:28,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:28,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:41:28,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:28,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 20:41:28,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:28,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:41:28,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:28,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:41:28,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:28,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 20:41:28,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:28,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:41:28,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:28,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:41:28,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:28,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-02 20:41:28,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:28,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:41:28,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:28,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:41:28,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:28,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-02 20:41:28,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:28,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:41:28,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:28,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:41:28,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:28,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-02 20:41:28,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:28,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:41:28,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:28,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-02 20:41:28,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:28,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:41:28,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:28,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-02 20:41:28,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:28,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-02 20:41:28,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:28,796 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2022-11-02 20:41:28,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:41:28,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772668217] [2022-11-02 20:41:28,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772668217] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:41:28,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:41:28,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:41:28,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274270733] [2022-11-02 20:41:28,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:41:28,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:41:28,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:41:28,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:41:28,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:41:28,844 INFO L87 Difference]: Start difference. First operand has 1175 states, 832 states have (on average 1.3353365384615385) internal successors, (1111), 860 states have internal predecessors, (1111), 285 states have call successors, (285), 57 states have call predecessors, (285), 56 states have return successors, (277), 267 states have call predecessors, (277), 277 states have call successors, (277) Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:41:32,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:41:32,516 INFO L93 Difference]: Finished difference Result 2468 states and 3573 transitions. [2022-11-02 20:41:32,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:41:32,521 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 162 [2022-11-02 20:41:32,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:41:32,547 INFO L225 Difference]: With dead ends: 2468 [2022-11-02 20:41:32,547 INFO L226 Difference]: Without dead ends: 1275 [2022-11-02 20:41:32,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:41:32,568 INFO L413 NwaCegarLoop]: 1574 mSDtfsCounter, 739 mSDsluCounter, 1378 mSDsCounter, 0 mSdLazyCounter, 938 mSolverCounterSat, 764 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 2952 SdHoareTripleChecker+Invalid, 1702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 764 IncrementalHoareTripleChecker+Valid, 938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:41:32,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 2952 Invalid, 1702 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [764 Valid, 938 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-02 20:41:32,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1275 states. [2022-11-02 20:41:32,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1275 to 1152. [2022-11-02 20:41:32,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1152 states, 819 states have (on average 1.321123321123321) internal successors, (1082), 837 states have internal predecessors, (1082), 277 states have call successors, (277), 56 states have call predecessors, (277), 55 states have return successors, (276), 266 states have call predecessors, (276), 276 states have call successors, (276) [2022-11-02 20:41:32,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 1635 transitions. [2022-11-02 20:41:32,757 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 1635 transitions. Word has length 162 [2022-11-02 20:41:32,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:41:32,757 INFO L495 AbstractCegarLoop]: Abstraction has 1152 states and 1635 transitions. [2022-11-02 20:41:32,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:41:32,758 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 1635 transitions. [2022-11-02 20:41:32,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-11-02 20:41:32,779 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:41:32,779 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:41:32,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:41:32,784 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:41:32,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:41:32,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1911430239, now seen corresponding path program 1 times [2022-11-02 20:41:32,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:41:32,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333545967] [2022-11-02 20:41:32,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:41:32,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:41:32,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:33,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:41:33,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:33,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:41:33,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:33,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:41:33,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:33,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:41:33,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:33,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:41:33,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:33,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:41:33,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:33,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 20:41:33,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:33,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:41:33,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:33,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:41:33,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:33,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 20:41:33,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:33,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:41:33,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:33,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:41:33,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:33,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-02 20:41:33,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:33,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:41:33,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:33,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:41:33,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:33,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-02 20:41:33,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:33,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:41:33,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:33,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:41:33,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:33,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-02 20:41:33,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:33,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:41:33,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:33,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-02 20:41:33,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:33,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:41:33,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:33,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-02 20:41:33,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:33,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-02 20:41:33,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:33,429 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2022-11-02 20:41:33,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:41:33,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333545967] [2022-11-02 20:41:33,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333545967] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:41:33,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:41:33,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:41:33,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292370925] [2022-11-02 20:41:33,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:41:33,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:41:33,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:41:33,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:41:33,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:41:33,434 INFO L87 Difference]: Start difference. First operand 1152 states and 1635 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:41:38,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:41:38,634 INFO L93 Difference]: Finished difference Result 3201 states and 4540 transitions. [2022-11-02 20:41:38,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:41:38,636 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 162 [2022-11-02 20:41:38,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:41:38,653 INFO L225 Difference]: With dead ends: 3201 [2022-11-02 20:41:38,653 INFO L226 Difference]: Without dead ends: 2073 [2022-11-02 20:41:38,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:41:38,662 INFO L413 NwaCegarLoop]: 1665 mSDtfsCounter, 2174 mSDsluCounter, 2360 mSDsCounter, 0 mSdLazyCounter, 1870 mSolverCounterSat, 1279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2276 SdHoareTripleChecker+Valid, 4025 SdHoareTripleChecker+Invalid, 3149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1279 IncrementalHoareTripleChecker+Valid, 1870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-02 20:41:38,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2276 Valid, 4025 Invalid, 3149 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1279 Valid, 1870 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-02 20:41:38,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2073 states. [2022-11-02 20:41:38,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2073 to 1798. [2022-11-02 20:41:38,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1798 states, 1292 states have (on average 1.3088235294117647) internal successors, (1691), 1319 states have internal predecessors, (1691), 407 states have call successors, (407), 99 states have call predecessors, (407), 98 states have return successors, (406), 392 states have call predecessors, (406), 406 states have call successors, (406) [2022-11-02 20:41:38,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1798 states to 1798 states and 2504 transitions. [2022-11-02 20:41:38,891 INFO L78 Accepts]: Start accepts. Automaton has 1798 states and 2504 transitions. Word has length 162 [2022-11-02 20:41:38,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:41:38,894 INFO L495 AbstractCegarLoop]: Abstraction has 1798 states and 2504 transitions. [2022-11-02 20:41:38,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-02 20:41:38,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1798 states and 2504 transitions. [2022-11-02 20:41:38,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-02 20:41:38,902 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:41:38,902 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:41:38,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:41:38,903 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:41:38,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:41:38,904 INFO L85 PathProgramCache]: Analyzing trace with hash -41870992, now seen corresponding path program 1 times [2022-11-02 20:41:38,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:41:38,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151354625] [2022-11-02 20:41:38,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:41:38,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:41:39,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:39,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:41:39,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:39,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:41:39,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:39,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:41:39,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:39,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:41:39,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:39,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:41:39,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:39,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:41:39,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:39,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 20:41:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:39,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:41:39,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:39,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:41:39,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:39,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 20:41:39,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:39,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:41:39,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:39,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:41:39,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:39,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-02 20:41:39,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:39,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:41:39,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:39,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:41:39,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:39,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-02 20:41:39,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:39,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:41:39,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:39,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:41:39,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:39,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-02 20:41:39,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:39,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:41:39,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:39,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-02 20:41:39,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:39,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:41:39,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:39,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-02 20:41:39,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:40,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-02 20:41:40,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:40,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-02 20:41:40,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:40,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-02 20:41:40,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:40,029 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2022-11-02 20:41:40,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:41:40,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151354625] [2022-11-02 20:41:40,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151354625] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:41:40,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:41:40,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:41:40,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049149073] [2022-11-02 20:41:40,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:41:40,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:41:40,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:41:40,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:41:40,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:41:40,044 INFO L87 Difference]: Start difference. First operand 1798 states and 2504 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, (19), 7 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-02 20:41:50,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:41:50,796 INFO L93 Difference]: Finished difference Result 5852 states and 8264 transitions. [2022-11-02 20:41:50,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-02 20:41:50,797 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, (19), 7 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 173 [2022-11-02 20:41:50,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:41:50,822 INFO L225 Difference]: With dead ends: 5852 [2022-11-02 20:41:50,823 INFO L226 Difference]: Without dead ends: 4082 [2022-11-02 20:41:50,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2022-11-02 20:41:50,838 INFO L413 NwaCegarLoop]: 1816 mSDtfsCounter, 3406 mSDsluCounter, 5885 mSDsCounter, 0 mSdLazyCounter, 5600 mSolverCounterSat, 2320 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3635 SdHoareTripleChecker+Valid, 7701 SdHoareTripleChecker+Invalid, 7920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2320 IncrementalHoareTripleChecker+Valid, 5600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-11-02 20:41:50,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3635 Valid, 7701 Invalid, 7920 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2320 Valid, 5600 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2022-11-02 20:41:50,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4082 states. [2022-11-02 20:41:51,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4082 to 3573. [2022-11-02 20:41:51,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3573 states, 2572 states have (on average 1.3083203732503887) internal successors, (3365), 2626 states have internal predecessors, (3365), 804 states have call successors, (804), 197 states have call predecessors, (804), 196 states have return successors, (803), 775 states have call predecessors, (803), 803 states have call successors, (803) [2022-11-02 20:41:51,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3573 states to 3573 states and 4972 transitions. [2022-11-02 20:41:51,061 INFO L78 Accepts]: Start accepts. Automaton has 3573 states and 4972 transitions. Word has length 173 [2022-11-02 20:41:51,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:41:51,062 INFO L495 AbstractCegarLoop]: Abstraction has 3573 states and 4972 transitions. [2022-11-02 20:41:51,062 INFO L496 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, (19), 7 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-02 20:41:51,062 INFO L276 IsEmpty]: Start isEmpty. Operand 3573 states and 4972 transitions. [2022-11-02 20:41:51,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-02 20:41:51,066 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:41:51,067 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:41:51,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:41:51,067 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:41:51,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:41:51,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1008660019, now seen corresponding path program 1 times [2022-11-02 20:41:51,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:41:51,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939929976] [2022-11-02 20:41:51,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:41:51,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:41:51,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:51,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:41:51,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:51,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:41:51,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:51,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:41:51,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:51,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:41:51,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:51,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:41:51,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:51,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:41:51,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:51,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 20:41:51,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:51,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:41:51,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:51,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:41:51,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:51,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 20:41:51,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:51,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:41:51,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:51,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:41:51,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:51,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-02 20:41:51,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:51,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:41:51,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:51,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:41:51,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:51,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-02 20:41:51,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:51,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:41:51,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:51,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:41:51,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:51,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-02 20:41:51,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:51,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:41:51,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:51,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-02 20:41:51,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:51,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:41:51,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:51,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-02 20:41:51,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:51,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-02 20:41:51,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:51,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-02 20:41:51,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:51,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-11-02 20:41:51,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:51,917 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2022-11-02 20:41:51,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:41:51,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939929976] [2022-11-02 20:41:51,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939929976] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:41:51,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:41:51,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:41:51,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111420816] [2022-11-02 20:41:51,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:41:51,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:41:51,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:41:51,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:41:51,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:41:51,921 INFO L87 Difference]: Start difference. First operand 3573 states and 4972 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-02 20:41:59,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:41:59,962 INFO L93 Difference]: Finished difference Result 11689 states and 16480 transitions. [2022-11-02 20:41:59,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-02 20:41:59,967 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 175 [2022-11-02 20:41:59,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:00,017 INFO L225 Difference]: With dead ends: 11689 [2022-11-02 20:42:00,017 INFO L226 Difference]: Without dead ends: 8144 [2022-11-02 20:42:00,036 INFO L412 NwaCegarLoop]: 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 [2022-11-02 20:42:00,038 INFO L413 NwaCegarLoop]: 1707 mSDtfsCounter, 3425 mSDsluCounter, 4866 mSDsCounter, 0 mSdLazyCounter, 4873 mSolverCounterSat, 2445 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3654 SdHoareTripleChecker+Valid, 6573 SdHoareTripleChecker+Invalid, 7318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2445 IncrementalHoareTripleChecker+Valid, 4873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:00,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3654 Valid, 6573 Invalid, 7318 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2445 Valid, 4873 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2022-11-02 20:42:00,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8144 states. [2022-11-02 20:42:00,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8144 to 7135. [2022-11-02 20:42:00,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7135 states, 5142 states have (on average 1.3076623881758072) internal successors, (6724), 5250 states have internal predecessors, (6724), 1598 states have call successors, (1598), 395 states have call predecessors, (1598), 394 states have return successors, (1597), 1541 states have call predecessors, (1597), 1597 states have call successors, (1597) [2022-11-02 20:42:00,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7135 states to 7135 states and 9919 transitions. [2022-11-02 20:42:00,497 INFO L78 Accepts]: Start accepts. Automaton has 7135 states and 9919 transitions. Word has length 175 [2022-11-02 20:42:00,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:00,499 INFO L495 AbstractCegarLoop]: Abstraction has 7135 states and 9919 transitions. [2022-11-02 20:42:00,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-02 20:42:00,500 INFO L276 IsEmpty]: Start isEmpty. Operand 7135 states and 9919 transitions. [2022-11-02 20:42:00,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-02 20:42:00,504 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:00,504 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:00,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:42:00,505 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:42:00,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:00,505 INFO L85 PathProgramCache]: Analyzing trace with hash 558339437, now seen corresponding path program 1 times [2022-11-02 20:42:00,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:42:00,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733472836] [2022-11-02 20:42:00,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:00,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:42:00,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:00,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:42:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:00,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:00,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:00,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:00,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:01,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:42:01,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:01,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:01,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:01,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:01,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:01,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 20:42:01,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:01,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:01,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:01,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:01,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:01,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 20:42:01,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:01,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:01,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:01,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:01,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:01,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-02 20:42:01,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:01,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:01,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:01,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:01,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:01,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-02 20:42:01,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:01,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:01,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:01,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:01,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:01,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-02 20:42:01,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:01,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:01,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:01,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-02 20:42:01,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:01,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:01,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:01,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-02 20:42:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:01,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-02 20:42:01,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:01,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-02 20:42:01,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:01,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-02 20:42:01,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:01,233 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2022-11-02 20:42:01,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:42:01,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733472836] [2022-11-02 20:42:01,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733472836] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:01,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:01,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:42:01,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568090467] [2022-11-02 20:42:01,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:01,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:42:01,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:42:01,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:42:01,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:42:01,236 INFO L87 Difference]: Start difference. First operand 7135 states and 9919 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, (19), 7 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-02 20:42:09,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:09,061 INFO L93 Difference]: Finished difference Result 23383 states and 32908 transitions. [2022-11-02 20:42:09,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-02 20:42:09,062 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, (19), 7 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 172 [2022-11-02 20:42:09,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:09,150 INFO L225 Difference]: With dead ends: 23383 [2022-11-02 20:42:09,150 INFO L226 Difference]: Without dead ends: 16276 [2022-11-02 20:42:09,178 INFO L412 NwaCegarLoop]: 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 [2022-11-02 20:42:09,179 INFO L413 NwaCegarLoop]: 1820 mSDtfsCounter, 3425 mSDsluCounter, 5268 mSDsCounter, 0 mSdLazyCounter, 4931 mSolverCounterSat, 2326 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3653 SdHoareTripleChecker+Valid, 7088 SdHoareTripleChecker+Invalid, 7257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2326 IncrementalHoareTripleChecker+Valid, 4931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:09,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3653 Valid, 7088 Invalid, 7257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2326 Valid, 4931 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2022-11-02 20:42:09,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16276 states. [2022-11-02 20:42:10,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16276 to 14187. [2022-11-02 20:42:10,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14187 states, 10222 states have (on average 1.3081588730189786) internal successors, (13372), 10462 states have internal predecessors, (13372), 3178 states have call successors, (3178), 787 states have call predecessors, (3178), 786 states have return successors, (3177), 3041 states have call predecessors, (3177), 3177 states have call successors, (3177) [2022-11-02 20:42:10,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14187 states to 14187 states and 19727 transitions. [2022-11-02 20:42:10,266 INFO L78 Accepts]: Start accepts. Automaton has 14187 states and 19727 transitions. Word has length 172 [2022-11-02 20:42:10,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:10,266 INFO L495 AbstractCegarLoop]: Abstraction has 14187 states and 19727 transitions. [2022-11-02 20:42:10,267 INFO L496 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, (19), 7 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-02 20:42:10,268 INFO L276 IsEmpty]: Start isEmpty. Operand 14187 states and 19727 transitions. [2022-11-02 20:42:10,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-11-02 20:42:10,278 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:10,278 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:10,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:42:10,279 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:42:10,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:10,279 INFO L85 PathProgramCache]: Analyzing trace with hash 2098159338, now seen corresponding path program 1 times [2022-11-02 20:42:10,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:42:10,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834073605] [2022-11-02 20:42:10,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:10,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:42:10,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:10,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:42:10,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:10,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:10,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:10,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:10,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:10,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:42:10,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:10,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:10,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:10,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:10,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:10,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 20:42:10,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:10,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:10,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:10,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:10,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 20:42:10,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:10,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:10,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:10,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:10,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:10,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-02 20:42:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:10,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:10,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:10,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:10,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:10,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-02 20:42:10,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:10,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:10,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:10,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:10,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:10,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-02 20:42:10,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:10,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:10,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:10,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-02 20:42:10,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:10,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:10,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:10,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-02 20:42:10,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:10,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-02 20:42:10,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:10,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-02 20:42:10,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:10,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-02 20:42:10,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:10,968 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2022-11-02 20:42:10,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:42:10,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834073605] [2022-11-02 20:42:10,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834073605] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:10,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:10,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:42:10,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402638472] [2022-11-02 20:42:10,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:10,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:42:10,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:42:10,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:42:10,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:42:10,972 INFO L87 Difference]: Start difference. First operand 14187 states and 19727 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, (19), 7 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-02 20:42:18,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:18,756 INFO L93 Difference]: Finished difference Result 45841 states and 64452 transitions. [2022-11-02 20:42:18,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-02 20:42:18,757 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, (19), 7 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 174 [2022-11-02 20:42:18,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:18,890 INFO L225 Difference]: With dead ends: 45841 [2022-11-02 20:42:18,891 INFO L226 Difference]: Without dead ends: 31682 [2022-11-02 20:42:18,943 INFO L412 NwaCegarLoop]: 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 [2022-11-02 20:42:18,944 INFO L413 NwaCegarLoop]: 1713 mSDtfsCounter, 3422 mSDsluCounter, 4894 mSDsCounter, 0 mSdLazyCounter, 4877 mSolverCounterSat, 2432 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3651 SdHoareTripleChecker+Valid, 6607 SdHoareTripleChecker+Invalid, 7309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2432 IncrementalHoareTripleChecker+Valid, 4877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:18,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3651 Valid, 6607 Invalid, 7309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2432 Valid, 4877 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-11-02 20:42:18,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31682 states. [2022-11-02 20:42:20,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31682 to 27853. [2022-11-02 20:42:20,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27853 states, 20068 states have (on average 1.3072553318716365) internal successors, (26234), 20532 states have internal predecessors, (26234), 6229 states have call successors, (6229), 1556 states have call predecessors, (6229), 1555 states have return successors, (6228), 5968 states have call predecessors, (6228), 6228 states have call successors, (6228) [2022-11-02 20:42:20,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27853 states to 27853 states and 38691 transitions. [2022-11-02 20:42:20,919 INFO L78 Accepts]: Start accepts. Automaton has 27853 states and 38691 transitions. Word has length 174 [2022-11-02 20:42:20,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:20,920 INFO L495 AbstractCegarLoop]: Abstraction has 27853 states and 38691 transitions. [2022-11-02 20:42:20,920 INFO L496 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, (19), 7 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-02 20:42:20,920 INFO L276 IsEmpty]: Start isEmpty. Operand 27853 states and 38691 transitions. [2022-11-02 20:42:20,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-11-02 20:42:20,926 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:20,926 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:20,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:42:20,927 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:42:20,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:20,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1967613030, now seen corresponding path program 1 times [2022-11-02 20:42:20,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:42:20,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005460450] [2022-11-02 20:42:20,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:20,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:42:21,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:21,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:42:21,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:21,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:21,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:21,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:21,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:42:21,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:21,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:21,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:21,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:21,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:21,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 20:42:21,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:21,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:21,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:21,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:21,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:21,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 20:42:21,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:21,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:21,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:21,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:21,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:21,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-02 20:42:21,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:21,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:21,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:21,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:21,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:21,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-02 20:42:21,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:21,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:21,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:21,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:21,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:21,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-02 20:42:21,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:21,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:21,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:21,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-02 20:42:21,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:21,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:21,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:21,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-02 20:42:21,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:21,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-02 20:42:21,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:21,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-11-02 20:42:21,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:21,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-11-02 20:42:21,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:21,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-11-02 20:42:21,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:21,830 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2022-11-02 20:42:21,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:42:21,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005460450] [2022-11-02 20:42:21,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005460450] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:42:21,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434080457] [2022-11-02 20:42:21,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:21,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:42:21,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:42:21,838 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:42:21,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 20:42:22,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:22,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 2724 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:42:22,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:42:23,012 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2022-11-02 20:42:23,013 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:42:23,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1434080457] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:23,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:42:23,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [12] total 13 [2022-11-02 20:42:23,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16061476] [2022-11-02 20:42:23,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:23,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:42:23,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:42:23,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:42:23,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:42:23,015 INFO L87 Difference]: Start difference. First operand 27853 states and 38691 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-02 20:42:24,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:24,326 INFO L93 Difference]: Finished difference Result 54639 states and 75854 transitions. [2022-11-02 20:42:24,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:42:24,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 186 [2022-11-02 20:42:24,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:24,441 INFO L225 Difference]: With dead ends: 54639 [2022-11-02 20:42:24,441 INFO L226 Difference]: Without dead ends: 26814 [2022-11-02 20:42:24,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:42:24,520 INFO L413 NwaCegarLoop]: 1552 mSDtfsCounter, 1483 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 1552 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:24,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1483 Valid, 1552 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:42:24,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26814 states. [2022-11-02 20:42:26,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26814 to 26814. [2022-11-02 20:42:26,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26814 states, 19548 states have (on average 1.2996726007775732) internal successors, (25406), 20012 states have internal predecessors, (25406), 5711 states have call successors, (5711), 1555 states have call predecessors, (5711), 1554 states have return successors, (5710), 5450 states have call predecessors, (5710), 5710 states have call successors, (5710) [2022-11-02 20:42:26,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26814 states to 26814 states and 36827 transitions. [2022-11-02 20:42:26,253 INFO L78 Accepts]: Start accepts. Automaton has 26814 states and 36827 transitions. Word has length 186 [2022-11-02 20:42:26,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:26,254 INFO L495 AbstractCegarLoop]: Abstraction has 26814 states and 36827 transitions. [2022-11-02 20:42:26,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-02 20:42:26,254 INFO L276 IsEmpty]: Start isEmpty. Operand 26814 states and 36827 transitions. [2022-11-02 20:42:26,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-11-02 20:42:26,257 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:26,258 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:26,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:42:26,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:42:26,474 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:42:26,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:26,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1535091734, now seen corresponding path program 1 times [2022-11-02 20:42:26,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:42:26,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981884156] [2022-11-02 20:42:26,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:26,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:42:26,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:42:27,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:27,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:27,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:42:27,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:27,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:27,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 20:42:27,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:27,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:27,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 20:42:27,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:27,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:27,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-02 20:42:27,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:27,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:27,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-02 20:42:27,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:27,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-02 20:42:27,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:27,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-02 20:42:27,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:27,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-02 20:42:27,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-02 20:42:27,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-11-02 20:42:27,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-11-02 20:42:27,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-11-02 20:42:27,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:27,571 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2022-11-02 20:42:27,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:42:27,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981884156] [2022-11-02 20:42:27,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981884156] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:42:27,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519498776] [2022-11-02 20:42:27,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:27,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:42:27,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:42:27,573 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:42:27,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 20:42:28,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:28,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 2724 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-02 20:42:28,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:42:28,844 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2022-11-02 20:42:28,844 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:42:28,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519498776] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:28,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:42:28,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2022-11-02 20:42:28,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199738698] [2022-11-02 20:42:28,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:28,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:42:28,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:42:28,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:42:28,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2022-11-02 20:42:28,846 INFO L87 Difference]: Start difference. First operand 26814 states and 36827 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, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-02 20:42:30,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:30,876 INFO L93 Difference]: Finished difference Result 67106 states and 92145 transitions. [2022-11-02 20:42:30,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:42:30,877 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, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 186 [2022-11-02 20:42:30,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:31,044 INFO L225 Difference]: With dead ends: 67106 [2022-11-02 20:42:31,044 INFO L226 Difference]: Without dead ends: 40320 [2022-11-02 20:42:31,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552 [2022-11-02 20:42:31,119 INFO L413 NwaCegarLoop]: 2150 mSDtfsCounter, 1583 mSDsluCounter, 10122 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1587 SdHoareTripleChecker+Valid, 12272 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:31,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1587 Valid, 12272 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:42:31,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40320 states. [2022-11-02 20:42:33,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40320 to 40025. [2022-11-02 20:42:33,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40025 states, 29194 states have (on average 1.300575460711105) internal successors, (37969), 29906 states have internal predecessors, (37969), 8500 states have call successors, (8500), 2315 states have call predecessors, (8500), 2330 states have return successors, (8539), 8107 states have call predecessors, (8539), 8499 states have call successors, (8539) [2022-11-02 20:42:33,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40025 states to 40025 states and 55008 transitions. [2022-11-02 20:42:33,742 INFO L78 Accepts]: Start accepts. Automaton has 40025 states and 55008 transitions. Word has length 186 [2022-11-02 20:42:33,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:33,742 INFO L495 AbstractCegarLoop]: Abstraction has 40025 states and 55008 transitions. [2022-11-02 20:42:33,743 INFO L496 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, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-02 20:42:33,743 INFO L276 IsEmpty]: Start isEmpty. Operand 40025 states and 55008 transitions. [2022-11-02 20:42:33,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-02 20:42:33,747 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:33,747 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:33,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:42:33,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:42:33,958 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:42:33,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:33,959 INFO L85 PathProgramCache]: Analyzing trace with hash 556154526, now seen corresponding path program 1 times [2022-11-02 20:42:33,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:42:33,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129182806] [2022-11-02 20:42:33,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:33,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:42:34,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:34,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:42:34,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:34,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:34,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:34,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:34,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:34,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:42:34,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:34,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:34,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:34,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:34,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:34,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 20:42:34,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:34,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:34,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:34,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:34,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:34,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 20:42:34,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:34,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:34,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:34,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:34,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:34,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-02 20:42:34,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:34,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:34,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:34,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:34,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:34,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-02 20:42:34,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:34,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:34,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:34,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:34,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:34,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-02 20:42:34,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:34,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:34,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:34,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-02 20:42:34,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:34,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:34,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:34,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-02 20:42:34,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:34,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-02 20:42:34,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:35,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-02 20:42:35,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:35,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-02 20:42:35,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:35,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-02 20:42:35,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:35,026 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2022-11-02 20:42:35,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:42:35,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129182806] [2022-11-02 20:42:35,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129182806] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:42:35,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721849049] [2022-11-02 20:42:35,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:35,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:42:35,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:42:35,028 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:42:35,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-02 20:42:35,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:35,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 2726 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-02 20:42:35,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:42:36,042 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2022-11-02 20:42:36,043 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:42:36,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721849049] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:36,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:42:36,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2022-11-02 20:42:36,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002668471] [2022-11-02 20:42:36,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:36,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:42:36,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:42:36,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:42:36,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:42:36,046 INFO L87 Difference]: Start difference. First operand 40025 states and 55008 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, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-02 20:42:38,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:38,361 INFO L93 Difference]: Finished difference Result 93634 states and 128599 transitions. [2022-11-02 20:42:38,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:42:38,362 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, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 187 [2022-11-02 20:42:38,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:38,584 INFO L225 Difference]: With dead ends: 93634 [2022-11-02 20:42:38,584 INFO L226 Difference]: Without dead ends: 53637 [2022-11-02 20:42:38,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2022-11-02 20:42:38,713 INFO L413 NwaCegarLoop]: 2257 mSDtfsCounter, 1583 mSDsluCounter, 10538 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1587 SdHoareTripleChecker+Valid, 12795 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:38,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1587 Valid, 12795 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:42:38,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53637 states. [2022-11-02 20:42:41,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53637 to 53300. [2022-11-02 20:42:41,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53300 states, 38880 states have (on average 1.3007201646090536) internal successors, (50572), 39872 states have internal predecessors, (50572), 11289 states have call successors, (11289), 3075 states have call predecessors, (11289), 3130 states have return successors, (11392), 10756 states have call predecessors, (11392), 11288 states have call successors, (11392) [2022-11-02 20:42:41,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53300 states to 53300 states and 73253 transitions. [2022-11-02 20:42:41,714 INFO L78 Accepts]: Start accepts. Automaton has 53300 states and 73253 transitions. Word has length 187 [2022-11-02 20:42:41,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:41,715 INFO L495 AbstractCegarLoop]: Abstraction has 53300 states and 73253 transitions. [2022-11-02 20:42:41,715 INFO L496 AbstractCegarLoop]: INTERPOLANT 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, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-02 20:42:41,715 INFO L276 IsEmpty]: Start isEmpty. Operand 53300 states and 73253 transitions. [2022-11-02 20:42:41,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-11-02 20:42:41,720 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:41,720 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:41,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:42:41,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:42:41,924 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:42:41,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:41,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1463434845, now seen corresponding path program 1 times [2022-11-02 20:42:41,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:42:41,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761422532] [2022-11-02 20:42:41,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:41,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:42:42,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:42,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:42:42,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:42,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:42,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:42,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:42,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:42,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:42:42,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:42,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:42,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:42,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:42,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:42,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 20:42:42,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:42,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:42,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:42,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:42,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:42,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 20:42:42,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:42,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:42,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:42,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:42,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:42,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-02 20:42:42,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:42,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:42,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:42,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:42,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:42,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-02 20:42:42,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:42,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:42,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:42,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:42,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:42,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-02 20:42:42,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:42,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:42,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:42,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-02 20:42:42,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:42,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:42,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:42,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-02 20:42:42,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:42,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-02 20:42:42,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:42,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-02 20:42:42,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:42,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-02 20:42:42,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:42,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-11-02 20:42:42,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:42,787 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2022-11-02 20:42:42,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:42:42,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761422532] [2022-11-02 20:42:42,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761422532] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:42:42,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931748663] [2022-11-02 20:42:42,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:42,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:42:42,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:42:42,789 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:42:42,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-02 20:42:43,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:43,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 2728 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-02 20:42:43,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:42:43,792 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2022-11-02 20:42:43,792 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:42:43,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931748663] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:43,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:42:43,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2022-11-02 20:42:43,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952335136] [2022-11-02 20:42:43,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:43,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:42:43,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:42:43,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:42:43,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:42:43,796 INFO L87 Difference]: Start difference. First operand 53300 states and 73253 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-02 20:42:46,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:46,785 INFO L93 Difference]: Finished difference Result 120162 states and 165053 transitions. [2022-11-02 20:42:46,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:42:46,785 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 188 [2022-11-02 20:42:46,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:47,311 INFO L225 Difference]: With dead ends: 120162 [2022-11-02 20:42:47,312 INFO L226 Difference]: Without dead ends: 66890 [2022-11-02 20:42:47,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2022-11-02 20:42:47,471 INFO L413 NwaCegarLoop]: 2269 mSDtfsCounter, 1583 mSDsluCounter, 10586 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1587 SdHoareTripleChecker+Valid, 12855 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:47,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1587 Valid, 12855 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:42:47,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66890 states. [2022-11-02 20:42:50,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66890 to 53344. [2022-11-02 20:42:50,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53344 states, 38912 states have (on average 1.3004728618421053) internal successors, (50604), 39908 states have internal predecessors, (50604), 11289 states have call successors, (11289), 3075 states have call predecessors, (11289), 3142 states have return successors, (11410), 10764 states have call predecessors, (11410), 11288 states have call successors, (11410) [2022-11-02 20:42:50,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53344 states to 53344 states and 73303 transitions. [2022-11-02 20:42:50,363 INFO L78 Accepts]: Start accepts. Automaton has 53344 states and 73303 transitions. Word has length 188 [2022-11-02 20:42:50,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:50,364 INFO L495 AbstractCegarLoop]: Abstraction has 53344 states and 73303 transitions. [2022-11-02 20:42:50,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-02 20:42:50,364 INFO L276 IsEmpty]: Start isEmpty. Operand 53344 states and 73303 transitions. [2022-11-02 20:42:50,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-02 20:42:50,370 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:50,370 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:50,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:42:50,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-02 20:42:50,594 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:42:50,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:50,595 INFO L85 PathProgramCache]: Analyzing trace with hash 713916357, now seen corresponding path program 1 times [2022-11-02 20:42:50,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:42:50,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143689998] [2022-11-02 20:42:50,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:50,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:42:50,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:51,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:42:51,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:51,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:51,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:51,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:51,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:51,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:42:51,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:51,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:51,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:51,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:51,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:51,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 20:42:51,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:51,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:51,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:51,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:51,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:51,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 20:42:51,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:51,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:51,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:51,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:51,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:51,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-02 20:42:51,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:51,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:51,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:51,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:51,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:51,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-02 20:42:51,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:51,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:51,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:51,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:42:51,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:51,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-02 20:42:51,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:51,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:51,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:51,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-02 20:42:51,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:51,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:42:51,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:51,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-02 20:42:51,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:51,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-02 20:42:51,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:51,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-02 20:42:51,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:51,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-02 20:42:51,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:51,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-11-02 20:42:51,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:51,864 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2022-11-02 20:42:51,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:42:51,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143689998] [2022-11-02 20:42:51,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143689998] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:42:51,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1734240862] [2022-11-02 20:42:51,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:51,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:42:51,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:42:51,866 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:42:51,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eb5c10a-4691-4ec4-a1e8-880e26ba2e8b/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-02 20:42:52,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:52,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 2730 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-02 20:42:52,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:42:52,823 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2022-11-02 20:42:52,823 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:42:52,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1734240862] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:52,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:42:52,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2022-11-02 20:42:52,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673102164] [2022-11-02 20:42:52,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:52,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:42:52,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:42:52,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:42:52,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2022-11-02 20:42:52,826 INFO L87 Difference]: Start difference. First operand 53344 states and 73303 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-02 20:42:55,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:55,654 INFO L93 Difference]: Finished difference Result 120222 states and 165119 transitions. [2022-11-02 20:42:55,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:42:55,655 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 189 [2022-11-02 20:42:55,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:55,893 INFO L225 Difference]: With dead ends: 120222 [2022-11-02 20:42:55,893 INFO L226 Difference]: Without dead ends: 66906 [2022-11-02 20:42:56,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2022-11-02 20:42:56,051 INFO L413 NwaCegarLoop]: 2269 mSDtfsCounter, 1583 mSDsluCounter, 10586 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1587 SdHoareTripleChecker+Valid, 12855 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:56,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1587 Valid, 12855 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:42:56,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66906 states.