./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-32_7a-drivers--gpu--drm--ast--ast.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70515dc9-eb63-47b0-8385-c4ee53f1c1ed/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70515dc9-eb63-47b0-8385-c4ee53f1c1ed/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70515dc9-eb63-47b0-8385-c4ee53f1c1ed/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70515dc9-eb63-47b0-8385-c4ee53f1c1ed/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--ast--ast.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70515dc9-eb63-47b0-8385-c4ee53f1c1ed/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70515dc9-eb63-47b0-8385-c4ee53f1c1ed/bin/uautomizer-tPACEb0tL8 --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 7e3ac2fcc053a51503ae18580c98d5f9812f019f35610d9038863980fd24a66a --- 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-e04fb08 [2022-11-16 12:10:36,426 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:10:36,429 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:10:36,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:10:36,464 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:10:36,465 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:10:36,471 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:10:36,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:10:36,482 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:10:36,483 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:10:36,484 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:10:36,485 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:10:36,486 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:10:36,487 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:10:36,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:10:36,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:10:36,490 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:10:36,493 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:10:36,496 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:10:36,506 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:10:36,510 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:10:36,515 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:10:36,516 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:10:36,517 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:10:36,520 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:10:36,520 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:10:36,521 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:10:36,521 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:10:36,522 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:10:36,528 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:10:36,528 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:10:36,529 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:10:36,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:10:36,532 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:10:36,534 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:10:36,535 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:10:36,535 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:10:36,536 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:10:36,536 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:10:36,537 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:10:36,537 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:10:36,538 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70515dc9-eb63-47b0-8385-c4ee53f1c1ed/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 12:10:36,583 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:10:36,583 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:10:36,584 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:10:36,584 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:10:36,585 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:10:36,586 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:10:36,586 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:10:36,586 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:10:36,587 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:10:36,587 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:10:36,588 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:10:36,588 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:10:36,588 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:10:36,588 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:10:36,589 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:10:36,589 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:10:36,589 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:10:36,589 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:10:36,589 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:10:36,590 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:10:36,590 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:10:36,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:10:36,590 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:10:36,590 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:10:36,591 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:10:36,591 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:10:36,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:10:36,591 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:10:36,591 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:10:36,593 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:10:36,593 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_70515dc9-eb63-47b0-8385-c4ee53f1c1ed/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70515dc9-eb63-47b0-8385-c4ee53f1c1ed/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e3ac2fcc053a51503ae18580c98d5f9812f019f35610d9038863980fd24a66a [2022-11-16 12:10:36,901 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:10:36,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:10:36,932 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:10:36,934 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:10:36,935 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:10:36,936 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70515dc9-eb63-47b0-8385-c4ee53f1c1ed/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--ast--ast.ko-entry_point.cil.out.i [2022-11-16 12:10:37,016 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70515dc9-eb63-47b0-8385-c4ee53f1c1ed/bin/uautomizer-tPACEb0tL8/data/46d23eb43/b52fc1c175054b80b5f5523c9a255549/FLAG11468831d [2022-11-16 12:10:38,197 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:10:38,197 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70515dc9-eb63-47b0-8385-c4ee53f1c1ed/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--ast--ast.ko-entry_point.cil.out.i [2022-11-16 12:10:38,280 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70515dc9-eb63-47b0-8385-c4ee53f1c1ed/bin/uautomizer-tPACEb0tL8/data/46d23eb43/b52fc1c175054b80b5f5523c9a255549/FLAG11468831d [2022-11-16 12:10:38,418 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70515dc9-eb63-47b0-8385-c4ee53f1c1ed/bin/uautomizer-tPACEb0tL8/data/46d23eb43/b52fc1c175054b80b5f5523c9a255549 [2022-11-16 12:10:38,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:10:38,422 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:10:38,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:10:38,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:10:38,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:10:38,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:10:38" (1/1) ... [2022-11-16 12:10:38,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71e5d3f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:38, skipping insertion in model container [2022-11-16 12:10:38,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:10:38" (1/1) ... [2022-11-16 12:10:38,438 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:10:38,640 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:10:42,859 WARN L229 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_70515dc9-eb63-47b0-8385-c4ee53f1c1ed/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--ast--ast.ko-entry_point.cil.out.i[423705,423718] [2022-11-16 12:10:43,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:10:43,344 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:10:43,912 WARN L229 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_70515dc9-eb63-47b0-8385-c4ee53f1c1ed/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--ast--ast.ko-entry_point.cil.out.i[423705,423718] [2022-11-16 12:10:43,935 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:10:44,299 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:10:44,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:44 WrapperNode [2022-11-16 12:10:44,300 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:10:44,302 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:10:44,302 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:10:44,302 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:10:44,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:44" (1/1) ... [2022-11-16 12:10:44,481 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:44" (1/1) ... [2022-11-16 12:10:44,871 INFO L138 Inliner]: procedures = 649, calls = 4702, calls flagged for inlining = 324, calls inlined = 315, statements flattened = 12139 [2022-11-16 12:10:44,872 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:10:44,872 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:10:44,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:10:44,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:10:44,882 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:44" (1/1) ... [2022-11-16 12:10:44,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:44" (1/1) ... [2022-11-16 12:10:44,936 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:44" (1/1) ... [2022-11-16 12:10:44,937 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:44" (1/1) ... [2022-11-16 12:10:45,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:44" (1/1) ... [2022-11-16 12:10:45,299 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:44" (1/1) ... [2022-11-16 12:10:45,359 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:44" (1/1) ... [2022-11-16 12:10:45,458 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:44" (1/1) ... [2022-11-16 12:10:45,534 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:10:45,535 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:10:45,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:10:45,536 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:10:45,536 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:44" (1/1) ... [2022-11-16 12:10:45,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:10:45,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70515dc9-eb63-47b0-8385-c4ee53f1c1ed/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:10:45,568 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70515dc9-eb63-47b0-8385-c4ee53f1c1ed/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:10:45,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70515dc9-eb63-47b0-8385-c4ee53f1c1ed/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:10:45,628 INFO L130 BoogieDeclarations]: Found specification of procedure drm_global_item_ref [2022-11-16 12:10:45,628 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_global_item_ref [2022-11-16 12:10:45,628 INFO L130 BoogieDeclarations]: Found specification of procedure wait_nack [2022-11-16 12:10:45,628 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_nack [2022-11-16 12:10:45,628 INFO L130 BoogieDeclarations]: Found specification of procedure wait_ack [2022-11-16 12:10:45,629 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_ack [2022-11-16 12:10:45,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-16 12:10:45,629 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-16 12:10:45,629 INFO L130 BoogieDeclarations]: Found specification of procedure clear_cmd_trigger [2022-11-16 12:10:45,629 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_cmd_trigger [2022-11-16 12:10:45,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 12:10:45,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 12:10:45,630 INFO L130 BoogieDeclarations]: Found specification of procedure ast_init_dvo [2022-11-16 12:10:45,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_init_dvo [2022-11-16 12:10:45,630 INFO L130 BoogieDeclarations]: Found specification of procedure ast_drm_freeze [2022-11-16 12:10:45,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_drm_freeze [2022-11-16 12:10:45,630 INFO L130 BoogieDeclarations]: Found specification of procedure drm_helper_probe_single_connector_modes [2022-11-16 12:10:45,631 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_helper_probe_single_connector_modes [2022-11-16 12:10:45,631 INFO L130 BoogieDeclarations]: Found specification of procedure lock_release [2022-11-16 12:10:45,631 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_release [2022-11-16 12:10:45,631 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-16 12:10:45,631 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-16 12:10:45,631 INFO L130 BoogieDeclarations]: Found specification of procedure __ww_mutex_lock [2022-11-16 12:10:45,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __ww_mutex_lock [2022-11-16 12:10:45,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_base_of_ww_mutex [2022-11-16 12:10:45,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_base_of_ww_mutex [2022-11-16 12:10:45,632 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_dpms [2022-11-16 12:10:45,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_dpms [2022-11-16 12:10:45,632 INFO L130 BoogieDeclarations]: Found specification of procedure ast_set_dp501_video_output [2022-11-16 12:10:45,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_set_dp501_video_output [2022-11-16 12:10:45,633 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_pin [2022-11-16 12:10:45,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_pin [2022-11-16 12:10:45,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_struct_mutex_of_drm_device [2022-11-16 12:10:45,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_struct_mutex_of_drm_device [2022-11-16 12:10:45,633 INFO L130 BoogieDeclarations]: Found specification of procedure ast_read32 [2022-11-16 12:10:45,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_read32 [2022-11-16 12:10:45,634 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-16 12:10:45,634 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-16 12:10:45,634 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-16 12:10:45,634 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-16 12:10:45,634 INFO L130 BoogieDeclarations]: Found specification of procedure cbr_dll2 [2022-11-16 12:10:45,634 INFO L138 BoogieDeclarations]: Found implementation of procedure cbr_dll2 [2022-11-16 12:10:45,634 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_mode_fixup [2022-11-16 12:10:45,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_mode_fixup [2022-11-16 12:10:45,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:10:45,635 INFO L130 BoogieDeclarations]: Found specification of procedure ast_drm_thaw [2022-11-16 12:10:45,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_drm_thaw [2022-11-16 12:10:45,636 INFO L130 BoogieDeclarations]: Found specification of procedure ast_dirty_update [2022-11-16 12:10:45,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_dirty_update [2022-11-16 12:10:45,636 INFO L130 BoogieDeclarations]: Found specification of procedure ast_enable_vga [2022-11-16 12:10:45,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_enable_vga [2022-11-16 12:10:45,636 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-16 12:10:45,637 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-16 12:10:45,637 INFO L130 BoogieDeclarations]: Found specification of procedure ast_set_index_reg_mask [2022-11-16 12:10:45,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_set_index_reg_mask [2022-11-16 12:10:45,638 INFO L130 BoogieDeclarations]: Found specification of procedure drm_fb_helper_fini [2022-11-16 12:10:45,639 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_fb_helper_fini [2022-11-16 12:10:45,640 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_kmap [2022-11-16 12:10:45,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_kmap [2022-11-16 12:10:45,640 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_del_sub_from_lru [2022-11-16 12:10:45,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_del_sub_from_lru [2022-11-16 12:10:45,641 INFO L130 BoogieDeclarations]: Found specification of procedure ast_ttm_placement [2022-11-16 12:10:45,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_ttm_placement [2022-11-16 12:10:45,641 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_load_lut [2022-11-16 12:10:45,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_load_lut [2022-11-16 12:10:45,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-16 12:10:45,641 INFO L130 BoogieDeclarations]: Found specification of procedure ast_mindwm [2022-11-16 12:10:45,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_mindwm [2022-11-16 12:10:45,642 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_kunmap [2022-11-16 12:10:45,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_kunmap [2022-11-16 12:10:45,643 INFO L130 BoogieDeclarations]: Found specification of procedure drm_global_item_unref [2022-11-16 12:10:45,643 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_global_item_unref [2022-11-16 12:10:45,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-16 12:10:45,644 INFO L130 BoogieDeclarations]: Found specification of procedure ast_user_framebuffer_destroy [2022-11-16 12:10:45,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_user_framebuffer_destroy [2022-11-16 12:10:45,644 INFO L130 BoogieDeclarations]: Found specification of procedure send_ack [2022-11-16 12:10:45,644 INFO L138 BoogieDeclarations]: Found implementation of procedure send_ack [2022-11-16 12:10:45,644 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_disable [2022-11-16 12:10:45,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_disable [2022-11-16 12:10:45,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:10:45,645 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_mode_set_base [2022-11-16 12:10:45,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_mode_set_base [2022-11-16 12:10:45,645 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2022-11-16 12:10:45,645 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2022-11-16 12:10:45,645 INFO L130 BoogieDeclarations]: Found specification of procedure get_fw_base [2022-11-16 12:10:45,645 INFO L138 BoogieDeclarations]: Found implementation of procedure get_fw_base [2022-11-16 12:10:45,646 INFO L130 BoogieDeclarations]: Found specification of procedure ast_io_read8 [2022-11-16 12:10:45,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_io_read8 [2022-11-16 12:10:45,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-16 12:10:45,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-16 12:10:45,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:10:45,647 INFO L130 BoogieDeclarations]: Found specification of procedure ast_post_gpu [2022-11-16 12:10:45,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_post_gpu [2022-11-16 12:10:45,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:10:45,648 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_gamma_set [2022-11-16 12:10:45,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_gamma_set [2022-11-16 12:10:45,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_base_of_ww_mutex [2022-11-16 12:10:45,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_base_of_ww_mutex [2022-11-16 12:10:45,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-16 12:10:45,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-16 12:10:45,650 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-16 12:10:45,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-16 12:10:45,650 INFO L130 BoogieDeclarations]: Found specification of procedure ast_fbdev_set_suspend [2022-11-16 12:10:45,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_fbdev_set_suspend [2022-11-16 12:10:45,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 12:10:45,651 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-16 12:10:45,651 INFO L130 BoogieDeclarations]: Found specification of procedure ast_framebuffer_init [2022-11-16 12:10:45,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_framebuffer_init [2022-11-16 12:10:45,651 INFO L130 BoogieDeclarations]: Found specification of procedure ast_cursor_set [2022-11-16 12:10:45,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_cursor_set [2022-11-16 12:10:45,651 INFO L130 BoogieDeclarations]: Found specification of procedure ast_open_key [2022-11-16 12:10:45,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_open_key [2022-11-16 12:10:45,652 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_validate [2022-11-16 12:10:45,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_validate [2022-11-16 12:10:45,652 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_test_burst2 [2022-11-16 12:10:45,652 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_test_burst2 [2022-11-16 12:10:45,653 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-16 12:10:45,653 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-16 12:10:45,654 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_unreserve [2022-11-16 12:10:45,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_unreserve [2022-11-16 12:10:45,657 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-16 12:10:45,657 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-16 12:10:45,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:10:45,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:10:45,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-16 12:10:45,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-16 12:10:45,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-16 12:10:45,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-16 12:10:45,666 INFO L130 BoogieDeclarations]: Found specification of procedure send_nack [2022-11-16 12:10:45,666 INFO L138 BoogieDeclarations]: Found implementation of procedure send_nack [2022-11-16 12:10:45,666 INFO L130 BoogieDeclarations]: Found specification of procedure ast_enable_mmio [2022-11-16 12:10:45,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_enable_mmio [2022-11-16 12:10:45,667 INFO L130 BoogieDeclarations]: Found specification of procedure ast_connector_detect [2022-11-16 12:10:45,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_connector_detect [2022-11-16 12:10:45,667 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-16 12:10:45,667 INFO L130 BoogieDeclarations]: Found specification of procedure ast_encoder_prepare [2022-11-16 12:10:45,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_encoder_prepare [2022-11-16 12:10:45,667 INFO L130 BoogieDeclarations]: Found specification of procedure ast_get_index_reg_mask [2022-11-16 12:10:45,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_get_index_reg_mask [2022-11-16 12:10:45,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_base_of_ww_mutex [2022-11-16 12:10:45,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_base_of_ww_mutex [2022-11-16 12:10:45,668 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2022-11-16 12:10:45,668 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2022-11-16 12:10:45,668 INFO L130 BoogieDeclarations]: Found specification of procedure ast_gem_create [2022-11-16 12:10:45,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_gem_create [2022-11-16 12:10:45,668 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_prepare [2022-11-16 12:10:45,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_prepare [2022-11-16 12:10:45,669 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-16 12:10:45,669 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-16 12:10:45,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-16 12:10:45,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-16 12:10:45,669 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_reserve [2022-11-16 12:10:45,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_reserve [2022-11-16 12:10:45,669 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-16 12:10:45,670 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-16 12:10:45,670 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 12:10:45,670 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 12:10:45,670 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_unreference_unlocked [2022-11-16 12:10:45,670 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_unreference_unlocked [2022-11-16 12:10:45,670 INFO L130 BoogieDeclarations]: Found specification of procedure ast_mmap [2022-11-16 12:10:45,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_mmap [2022-11-16 12:10:45,670 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-16 12:10:45,671 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-16 12:10:45,671 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-16 12:10:45,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-16 12:10:45,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:10:45,671 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_free [2022-11-16 12:10:45,671 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_free [2022-11-16 12:10:45,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put_mutex_54 [2022-11-16 12:10:45,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put_mutex_54 [2022-11-16 12:10:45,672 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_global_release [2022-11-16 12:10:45,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_struct_mutex_of_drm_device [2022-11-16 12:10:45,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_struct_mutex_of_drm_device [2022-11-16 12:10:45,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 12:10:45,672 INFO L130 BoogieDeclarations]: Found specification of procedure __ww_mutex_lock_interruptible [2022-11-16 12:10:45,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __ww_mutex_lock_interruptible [2022-11-16 12:10:45,672 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2022-11-16 12:10:45,673 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2022-11-16 12:10:45,673 INFO L130 BoogieDeclarations]: Found specification of procedure ast_connector_destroy [2022-11-16 12:10:45,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_connector_destroy [2022-11-16 12:10:45,673 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_commit [2022-11-16 12:10:45,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_commit [2022-11-16 12:10:45,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 12:10:45,673 INFO L130 BoogieDeclarations]: Found specification of procedure ast_pm_resume [2022-11-16 12:10:45,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_pm_resume [2022-11-16 12:10:45,674 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-16 12:10:45,674 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-16 12:10:45,674 INFO L130 BoogieDeclarations]: Found specification of procedure ast_io_write8 [2022-11-16 12:10:45,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_io_write8 [2022-11-16 12:10:45,674 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_kmap_obj_virtual [2022-11-16 12:10:45,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_kmap_obj_virtual [2022-11-16 12:10:45,675 INFO L130 BoogieDeclarations]: Found specification of procedure ast_encoder_destroy [2022-11-16 12:10:45,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_encoder_destroy [2022-11-16 12:10:45,675 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_gpu_offset [2022-11-16 12:10:45,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_gpu_offset [2022-11-16 12:10:45,675 INFO L130 BoogieDeclarations]: Found specification of procedure ast_write32 [2022-11-16 12:10:45,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_write32 [2022-11-16 12:10:45,675 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_reset [2022-11-16 12:10:45,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_reset [2022-11-16 12:10:45,676 INFO L130 BoogieDeclarations]: Found specification of procedure ast_gem_free_object [2022-11-16 12:10:45,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_gem_free_object [2022-11-16 12:10:45,676 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_unreference_unlocked___0 [2022-11-16 12:10:45,676 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_unreference_unlocked___0 [2022-11-16 12:10:45,676 INFO L130 BoogieDeclarations]: Found specification of procedure ast_ttm_backend_destroy [2022-11-16 12:10:45,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_ttm_backend_destroy [2022-11-16 12:10:45,676 INFO L130 BoogieDeclarations]: Found specification of procedure ast_pci_remove [2022-11-16 12:10:45,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_pci_remove [2022-11-16 12:10:45,677 INFO L130 BoogieDeclarations]: Found specification of procedure drm_helper_connector_dpms [2022-11-16 12:10:45,677 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_helper_connector_dpms [2022-11-16 12:10:45,677 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_mode_set [2022-11-16 12:10:45,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_mode_set [2022-11-16 12:10:45,677 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_test_single2 [2022-11-16 12:10:45,677 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_test_single2 [2022-11-16 12:10:45,678 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo [2022-11-16 12:10:45,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo [2022-11-16 12:10:45,678 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-16 12:10:45,678 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-16 12:10:45,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:10:45,678 INFO L130 BoogieDeclarations]: Found specification of procedure ast_moutdwm [2022-11-16 12:10:45,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_moutdwm [2022-11-16 12:10:45,678 INFO L130 BoogieDeclarations]: Found specification of procedure ast_set_index_reg [2022-11-16 12:10:45,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_set_index_reg [2022-11-16 12:10:45,679 INFO L130 BoogieDeclarations]: Found specification of procedure cbrdlli_ast2150 [2022-11-16 12:10:45,679 INFO L138 BoogieDeclarations]: Found implementation of procedure cbrdlli_ast2150 [2022-11-16 12:10:45,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-16 12:10:45,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-16 12:10:45,679 INFO L130 BoogieDeclarations]: Found specification of procedure drm_framebuffer_cleanup [2022-11-16 12:10:45,679 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_framebuffer_cleanup [2022-11-16 12:10:45,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-16 12:10:45,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-16 12:10:45,680 INFO L130 BoogieDeclarations]: Found specification of procedure ast_encoder_commit [2022-11-16 12:10:45,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_encoder_commit [2022-11-16 12:10:45,680 INFO L130 BoogieDeclarations]: Found specification of procedure lock_acquire [2022-11-16 12:10:45,680 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_acquire [2022-11-16 12:10:45,680 INFO L130 BoogieDeclarations]: Found specification of procedure drm_crtc_helper_set_config [2022-11-16 12:10:45,680 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_crtc_helper_set_config [2022-11-16 12:10:45,681 INFO L130 BoogieDeclarations]: Found specification of procedure console_lock [2022-11-16 12:10:45,681 INFO L138 BoogieDeclarations]: Found implementation of procedure console_lock [2022-11-16 12:10:45,681 INFO L130 BoogieDeclarations]: Found specification of procedure ast_cursor_move [2022-11-16 12:10:45,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_cursor_move [2022-11-16 12:10:45,681 INFO L130 BoogieDeclarations]: Found specification of procedure console_unlock [2022-11-16 12:10:45,681 INFO L138 BoogieDeclarations]: Found implementation of procedure console_unlock [2022-11-16 12:10:45,681 INFO L130 BoogieDeclarations]: Found specification of procedure drm_poll [2022-11-16 12:10:45,682 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_poll [2022-11-16 12:10:45,682 INFO L130 BoogieDeclarations]: Found specification of procedure drm_mode_connector_update_edid_property [2022-11-16 12:10:45,683 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_mode_connector_update_edid_property [2022-11-16 12:10:45,686 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-16 12:10:45,686 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-16 12:10:45,687 INFO L130 BoogieDeclarations]: Found specification of procedure ast_ttm_tt_unpopulate [2022-11-16 12:10:45,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_ttm_tt_unpopulate [2022-11-16 12:10:45,687 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_lookup [2022-11-16 12:10:45,687 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_lookup [2022-11-16 12:10:45,687 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_destroy [2022-11-16 12:10:45,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_destroy [2022-11-16 12:10:45,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:10:47,009 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:10:47,012 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:10:47,376 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-16 12:11:05,566 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:11:05,596 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:11:05,596 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 12:11:05,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:11:05 BoogieIcfgContainer [2022-11-16 12:11:05,603 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:11:05,605 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:11:05,606 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:11:05,609 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:11:05,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:10:38" (1/3) ... [2022-11-16 12:11:05,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35a92b91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:11:05, skipping insertion in model container [2022-11-16 12:11:05,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:10:44" (2/3) ... [2022-11-16 12:11:05,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35a92b91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:11:05, skipping insertion in model container [2022-11-16 12:11:05,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:11:05" (3/3) ... [2022-11-16 12:11:05,612 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--ast--ast.ko-entry_point.cil.out.i [2022-11-16 12:11:05,631 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:11:05,631 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:11:05,753 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:11:05,759 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;@29318f8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:11:05,760 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:11:05,773 INFO L276 IsEmpty]: Start isEmpty. Operand has 3569 states, 2559 states have (on average 1.4490035169988276) internal successors, (3708), 2650 states have internal predecessors, (3708), 891 states have call successors, (891), 118 states have call predecessors, (891), 117 states have return successors, (873), 850 states have call predecessors, (873), 873 states have call successors, (873) [2022-11-16 12:11:05,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-16 12:11:05,791 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:11:05,792 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:11:05,792 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:11:05,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:11:05,798 INFO L85 PathProgramCache]: Analyzing trace with hash 935157621, now seen corresponding path program 1 times [2022-11-16 12:11:05,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:11:05,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593805139] [2022-11-16 12:11:05,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:11:05,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:11:06,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:06,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:11:06,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:06,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:11:06,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:06,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:11:06,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:06,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:11:06,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:06,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:11:06,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:06,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:11:06,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:06,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:11:06,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:06,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:11:06,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:06,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:11:06,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:06,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:11:07,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:07,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:11:07,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:07,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:11:07,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:07,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:11:07,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:07,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:11:07,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:07,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:11:07,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:07,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:11:07,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:07,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:11:07,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:07,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:11:07,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:07,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:11:07,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:07,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:11:07,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:07,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:11:07,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:07,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-16 12:11:07,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:07,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:11:07,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:07,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:11:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:07,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-16 12:11:07,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:07,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:11:07,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:07,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:11:07,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:07,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 12:11:07,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:07,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-16 12:11:07,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:07,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-16 12:11:07,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:07,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-16 12:11:07,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:07,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-16 12:11:07,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:07,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-16 12:11:07,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:07,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-11-16 12:11:07,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:07,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-16 12:11:07,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:07,644 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2022-11-16 12:11:07,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:11:07,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593805139] [2022-11-16 12:11:07,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593805139] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:11:07,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:11:07,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:11:07,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683317560] [2022-11-16 12:11:07,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:11:07,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:11:07,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:11:07,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:11:07,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:11:07,697 INFO L87 Difference]: Start difference. First operand has 3569 states, 2559 states have (on average 1.4490035169988276) internal successors, (3708), 2650 states have internal predecessors, (3708), 891 states have call successors, (891), 118 states have call predecessors, (891), 117 states have return successors, (873), 850 states have call predecessors, (873), 873 states have call successors, (873) Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-16 12:11:13,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:11:25,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:11:25,652 INFO L93 Difference]: Finished difference Result 7435 states and 11623 transitions. [2022-11-16 12:11:25,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:11:25,655 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 218 [2022-11-16 12:11:25,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:11:25,705 INFO L225 Difference]: With dead ends: 7435 [2022-11-16 12:11:25,705 INFO L226 Difference]: Without dead ends: 3845 [2022-11-16 12:11:25,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:11:25,735 INFO L413 NwaCegarLoop]: 4482 mSDtfsCounter, 2758 mSDsluCounter, 2778 mSDsCounter, 0 mSdLazyCounter, 2543 mSolverCounterSat, 3359 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2827 SdHoareTripleChecker+Valid, 7260 SdHoareTripleChecker+Invalid, 5903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3359 IncrementalHoareTripleChecker+Valid, 2543 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:11:25,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2827 Valid, 7260 Invalid, 5903 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3359 Valid, 2543 Invalid, 1 Unknown, 0 Unchecked, 17.3s Time] [2022-11-16 12:11:25,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3845 states. [2022-11-16 12:11:26,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3845 to 3543. [2022-11-16 12:11:26,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3543 states, 2553 states have (on average 1.4336075205640424) internal successors, (3660), 2624 states have internal predecessors, (3660), 873 states have call successors, (873), 117 states have call predecessors, (873), 116 states have return successors, (861), 838 states have call predecessors, (861), 861 states have call successors, (861) [2022-11-16 12:11:26,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3543 states to 3543 states and 5394 transitions. [2022-11-16 12:11:26,101 INFO L78 Accepts]: Start accepts. Automaton has 3543 states and 5394 transitions. Word has length 218 [2022-11-16 12:11:26,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:11:26,102 INFO L495 AbstractCegarLoop]: Abstraction has 3543 states and 5394 transitions. [2022-11-16 12:11:26,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-16 12:11:26,103 INFO L276 IsEmpty]: Start isEmpty. Operand 3543 states and 5394 transitions. [2022-11-16 12:11:26,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-16 12:11:26,116 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:11:26,117 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:11:26,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:11:26,117 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:11:26,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:11:26,118 INFO L85 PathProgramCache]: Analyzing trace with hash -947931129, now seen corresponding path program 1 times [2022-11-16 12:11:26,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:11:26,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273653934] [2022-11-16 12:11:26,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:11:26,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:11:26,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:26,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:11:26,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:26,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:11:26,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:26,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:11:26,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:26,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:11:26,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:26,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:11:26,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:26,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:11:26,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:26,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:11:26,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:26,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:11:26,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:26,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:11:26,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:26,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:11:26,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:27,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:11:27,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:27,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:11:27,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:27,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:11:27,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:27,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:11:27,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:27,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:11:27,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:27,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:11:27,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:27,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:11:27,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:27,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:11:27,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:27,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:11:27,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:27,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:11:27,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:27,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:11:27,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:27,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-16 12:11:27,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:27,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:11:27,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:27,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:11:27,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:27,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-16 12:11:27,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:27,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:11:27,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:27,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:11:27,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:27,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 12:11:27,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:27,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-16 12:11:27,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:27,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-16 12:11:27,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:27,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-16 12:11:27,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:27,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-16 12:11:27,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:27,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-16 12:11:27,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:27,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-11-16 12:11:27,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:27,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-16 12:11:27,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:27,523 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2022-11-16 12:11:27,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:11:27,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273653934] [2022-11-16 12:11:27,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273653934] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:11:27,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:11:27,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:11:27,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720546314] [2022-11-16 12:11:27,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:11:27,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:11:27,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:11:27,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:11:27,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:11:27,533 INFO L87 Difference]: Start difference. First operand 3543 states and 5394 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-16 12:11:34,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:11:43,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:11:53,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:11:53,605 INFO L93 Difference]: Finished difference Result 11082 states and 17043 transitions. [2022-11-16 12:11:53,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:11:53,605 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 218 [2022-11-16 12:11:53,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:11:53,659 INFO L225 Difference]: With dead ends: 11082 [2022-11-16 12:11:53,659 INFO L226 Difference]: Without dead ends: 7576 [2022-11-16 12:11:53,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:11:53,680 INFO L413 NwaCegarLoop]: 5104 mSDtfsCounter, 9931 mSDsluCounter, 6644 mSDsCounter, 0 mSdLazyCounter, 5327 mSolverCounterSat, 7052 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10601 SdHoareTripleChecker+Valid, 11748 SdHoareTripleChecker+Invalid, 12380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7052 IncrementalHoareTripleChecker+Valid, 5327 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:11:53,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10601 Valid, 11748 Invalid, 12380 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7052 Valid, 5327 Invalid, 1 Unknown, 0 Unchecked, 25.3s Time] [2022-11-16 12:11:53,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7576 states. [2022-11-16 12:11:54,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7576 to 6965. [2022-11-16 12:11:54,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6965 states, 5036 states have (on average 1.437251787132645) internal successors, (7238), 5167 states have internal predecessors, (7238), 1696 states have call successors, (1696), 233 states have call predecessors, (1696), 232 states have return successors, (1684), 1638 states have call predecessors, (1684), 1684 states have call successors, (1684) [2022-11-16 12:11:54,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6965 states to 6965 states and 10618 transitions. [2022-11-16 12:11:54,258 INFO L78 Accepts]: Start accepts. Automaton has 6965 states and 10618 transitions. Word has length 218 [2022-11-16 12:11:54,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:11:54,261 INFO L495 AbstractCegarLoop]: Abstraction has 6965 states and 10618 transitions. [2022-11-16 12:11:54,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-16 12:11:54,263 INFO L276 IsEmpty]: Start isEmpty. Operand 6965 states and 10618 transitions. [2022-11-16 12:11:54,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-11-16 12:11:54,267 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:11:54,268 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:11:54,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:11:54,268 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:11:54,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:11:54,269 INFO L85 PathProgramCache]: Analyzing trace with hash 459690371, now seen corresponding path program 1 times [2022-11-16 12:11:54,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:11:54,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676007648] [2022-11-16 12:11:54,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:11:54,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:11:54,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:54,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:11:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:54,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:11:54,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:54,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:11:54,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:54,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:11:54,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:54,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:11:54,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:54,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:11:54,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:54,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:11:54,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:54,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:11:54,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:54,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:11:54,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:54,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:11:54,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:54,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:11:54,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:54,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:11:54,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:54,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:11:54,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:54,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:11:54,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:54,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:11:54,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:54,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:11:54,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:54,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:11:54,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:55,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:11:55,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:55,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:11:55,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:55,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:11:55,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:55,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:11:55,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:55,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-16 12:11:55,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:55,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:11:55,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:55,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:11:55,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:55,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-16 12:11:55,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:55,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:11:55,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:55,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:11:55,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:55,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 12:11:55,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:55,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-16 12:11:55,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:55,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-16 12:11:55,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:55,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-16 12:11:55,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:55,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-16 12:11:55,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:55,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-16 12:11:55,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:55,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-11-16 12:11:55,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:55,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-16 12:11:55,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:55,268 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2022-11-16 12:11:55,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:11:55,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676007648] [2022-11-16 12:11:55,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676007648] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:11:55,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:11:55,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:11:55,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366456139] [2022-11-16 12:11:55,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:11:55,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:11:55,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:11:55,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:11:55,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:11:55,272 INFO L87 Difference]: Start difference. First operand 6965 states and 10618 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-16 12:11:59,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:12:01,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:12:03,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:12:06,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:12:20,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:12:27,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:12:31,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:12:41,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:12:49,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:12:49,275 INFO L93 Difference]: Finished difference Result 21112 states and 32459 transitions. [2022-11-16 12:12:49,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:12:49,276 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 222 [2022-11-16 12:12:49,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:12:49,370 INFO L225 Difference]: With dead ends: 21112 [2022-11-16 12:12:49,370 INFO L226 Difference]: Without dead ends: 14184 [2022-11-16 12:12:49,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:12:49,407 INFO L413 NwaCegarLoop]: 5056 mSDtfsCounter, 7372 mSDsluCounter, 11468 mSDsCounter, 0 mSdLazyCounter, 8630 mSolverCounterSat, 4575 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7953 SdHoareTripleChecker+Valid, 16524 SdHoareTripleChecker+Invalid, 13209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4575 IncrementalHoareTripleChecker+Valid, 8630 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:12:49,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7953 Valid, 16524 Invalid, 13209 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4575 Valid, 8630 Invalid, 4 Unknown, 0 Unchecked, 53.0s Time] [2022-11-16 12:12:49,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14184 states. [2022-11-16 12:12:50,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14184 to 12956. [2022-11-16 12:12:50,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12956 states, 9347 states have (on average 1.438322456403124) internal successors, (13444), 9557 states have internal predecessors, (13444), 3156 states have call successors, (3156), 453 states have call predecessors, (3156), 452 states have return successors, (3144), 3081 states have call predecessors, (3144), 3144 states have call successors, (3144) [2022-11-16 12:12:50,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12956 states to 12956 states and 19744 transitions. [2022-11-16 12:12:50,333 INFO L78 Accepts]: Start accepts. Automaton has 12956 states and 19744 transitions. Word has length 222 [2022-11-16 12:12:50,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:12:50,334 INFO L495 AbstractCegarLoop]: Abstraction has 12956 states and 19744 transitions. [2022-11-16 12:12:50,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-16 12:12:50,334 INFO L276 IsEmpty]: Start isEmpty. Operand 12956 states and 19744 transitions. [2022-11-16 12:12:50,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-11-16 12:12:50,338 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:12:50,338 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:12:50,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:12:50,339 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:12:50,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:12:50,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1759937802, now seen corresponding path program 1 times [2022-11-16 12:12:50,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:12:50,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295788264] [2022-11-16 12:12:50,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:12:50,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:12:50,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:50,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:12:50,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:50,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:12:50,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:50,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:12:50,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:50,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:12:50,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:50,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:12:50,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:50,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:12:50,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:50,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:12:50,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:50,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:12:50,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:51,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:12:51,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:51,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:12:51,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:51,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:12:51,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:51,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:12:51,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:51,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:12:51,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:51,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:12:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:51,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:12:51,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:51,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:12:51,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:51,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:12:51,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:51,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:12:51,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:51,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:12:51,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:51,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:12:51,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:51,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:12:51,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:51,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-16 12:12:51,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:51,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:12:51,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:51,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:12:51,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:51,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-16 12:12:51,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:51,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:12:51,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:51,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:12:51,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:51,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 12:12:51,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:51,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-16 12:12:51,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:51,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-16 12:12:51,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:51,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-16 12:12:51,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:51,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-16 12:12:51,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:51,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-16 12:12:51,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:51,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-11-16 12:12:51,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:51,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-16 12:12:51,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:51,483 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2022-11-16 12:12:51,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:12:51,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295788264] [2022-11-16 12:12:51,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295788264] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:12:51,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:12:51,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:12:51,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344563833] [2022-11-16 12:12:51,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:12:51,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:12:51,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:12:51,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:12:51,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:12:51,487 INFO L87 Difference]: Start difference. First operand 12956 states and 19744 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-16 12:12:55,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:13:02,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:13:04,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:13:19,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:13:19,993 INFO L93 Difference]: Finished difference Result 28199 states and 43838 transitions. [2022-11-16 12:13:19,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:13:19,994 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 222 [2022-11-16 12:13:19,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:13:20,163 INFO L225 Difference]: With dead ends: 28199 [2022-11-16 12:13:20,163 INFO L226 Difference]: Without dead ends: 28193 [2022-11-16 12:13:20,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:13:20,181 INFO L413 NwaCegarLoop]: 5168 mSDtfsCounter, 9980 mSDsluCounter, 6667 mSDsCounter, 0 mSdLazyCounter, 5340 mSolverCounterSat, 7080 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10630 SdHoareTripleChecker+Valid, 11835 SdHoareTripleChecker+Invalid, 12423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7080 IncrementalHoareTripleChecker+Valid, 5340 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:13:20,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10630 Valid, 11835 Invalid, 12423 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7080 Valid, 5340 Invalid, 3 Unknown, 0 Unchecked, 27.2s Time] [2022-11-16 12:13:20,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28193 states. [2022-11-16 12:13:21,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28193 to 25785. [2022-11-16 12:13:21,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25785 states, 18623 states have (on average 1.4385974332814262) internal successors, (26791), 19036 states have internal predecessors, (26791), 6267 states have call successors, (6267), 899 states have call predecessors, (6267), 894 states have return successors, (6411), 6121 states have call predecessors, (6411), 6255 states have call successors, (6411) [2022-11-16 12:13:21,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25785 states to 25785 states and 39469 transitions. [2022-11-16 12:13:21,881 INFO L78 Accepts]: Start accepts. Automaton has 25785 states and 39469 transitions. Word has length 222 [2022-11-16 12:13:21,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:13:21,882 INFO L495 AbstractCegarLoop]: Abstraction has 25785 states and 39469 transitions. [2022-11-16 12:13:21,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-16 12:13:21,882 INFO L276 IsEmpty]: Start isEmpty. Operand 25785 states and 39469 transitions. [2022-11-16 12:13:21,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-11-16 12:13:21,885 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:13:21,886 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:13:21,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:13:21,886 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:13:21,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:13:21,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1275149147, now seen corresponding path program 1 times [2022-11-16 12:13:21,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:13:21,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142846901] [2022-11-16 12:13:21,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:13:21,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:13:22,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:22,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:13:22,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:22,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:13:22,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:22,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:13:22,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:22,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:13:22,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:22,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:13:22,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:22,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:13:22,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:22,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:13:22,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:22,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:13:22,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:22,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:13:22,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:22,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:13:22,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:22,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:13:22,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:22,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:13:22,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:22,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:13:22,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:22,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:13:22,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:22,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:13:22,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:22,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:13:22,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:22,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:13:22,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:22,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:13:22,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:22,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:13:22,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:22,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:13:22,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:22,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:13:22,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:22,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-16 12:13:22,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:22,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:13:22,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:22,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:13:22,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:23,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-16 12:13:23,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:23,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:13:23,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:23,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:13:23,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:23,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 12:13:23,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:23,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-16 12:13:23,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:23,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-16 12:13:23,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:23,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-16 12:13:23,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:23,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-16 12:13:23,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:23,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-16 12:13:23,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:23,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-11-16 12:13:23,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:23,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-16 12:13:23,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:23,312 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2022-11-16 12:13:23,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:13:23,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142846901] [2022-11-16 12:13:23,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142846901] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:13:23,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:13:23,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:13:23,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103131330] [2022-11-16 12:13:23,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:13:23,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:13:23,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:13:23,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:13:23,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:13:23,317 INFO L87 Difference]: Start difference. First operand 25785 states and 39469 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-16 12:13:26,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:13:30,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:13:55,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:14:04,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:14:04,285 INFO L93 Difference]: Finished difference Result 28191 states and 43818 transitions. [2022-11-16 12:14:04,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:14:04,286 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 223 [2022-11-16 12:14:04,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:14:04,403 INFO L225 Difference]: With dead ends: 28191 [2022-11-16 12:14:04,403 INFO L226 Difference]: Without dead ends: 28188 [2022-11-16 12:14:04,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:14:04,420 INFO L413 NwaCegarLoop]: 4418 mSDtfsCounter, 6314 mSDsluCounter, 7471 mSDsCounter, 0 mSdLazyCounter, 4961 mSolverCounterSat, 2702 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6914 SdHoareTripleChecker+Valid, 11889 SdHoareTripleChecker+Invalid, 7664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2702 IncrementalHoareTripleChecker+Valid, 4961 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:14:04,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6914 Valid, 11889 Invalid, 7664 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2702 Valid, 4961 Invalid, 1 Unknown, 0 Unchecked, 39.8s Time] [2022-11-16 12:14:04,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28188 states. [2022-11-16 12:14:06,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28188 to 25784. [2022-11-16 12:14:06,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25784 states, 18623 states have (on average 1.4385437362401332) internal successors, (26790), 19035 states have internal predecessors, (26790), 6266 states have call successors, (6266), 899 states have call predecessors, (6266), 894 states have return successors, (6411), 6121 states have call predecessors, (6411), 6255 states have call successors, (6411) [2022-11-16 12:14:06,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25784 states to 25784 states and 39467 transitions. [2022-11-16 12:14:06,216 INFO L78 Accepts]: Start accepts. Automaton has 25784 states and 39467 transitions. Word has length 223 [2022-11-16 12:14:06,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:14:06,217 INFO L495 AbstractCegarLoop]: Abstraction has 25784 states and 39467 transitions. [2022-11-16 12:14:06,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-16 12:14:06,218 INFO L276 IsEmpty]: Start isEmpty. Operand 25784 states and 39467 transitions. [2022-11-16 12:14:06,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-11-16 12:14:06,227 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:14:06,228 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:14:06,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:14:06,228 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:14:06,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:14:06,229 INFO L85 PathProgramCache]: Analyzing trace with hash 873568921, now seen corresponding path program 1 times [2022-11-16 12:14:06,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:14:06,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007495551] [2022-11-16 12:14:06,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:14:06,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:14:06,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:06,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:14:06,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:06,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:14:06,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:06,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:14:06,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:06,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:14:06,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:07,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:14:07,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:07,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:14:07,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:07,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:14:07,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:07,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:14:07,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:07,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:14:07,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:07,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:14:07,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:07,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:14:07,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:07,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:14:07,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:07,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:14:07,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:07,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:14:07,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:07,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:14:07,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:07,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:14:07,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:07,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:14:07,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:07,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:14:07,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:07,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:14:07,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:07,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:14:07,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:07,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:14:07,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:07,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-16 12:14:07,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:07,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:14:07,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:07,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:14:07,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:07,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-16 12:14:07,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:07,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:14:07,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:07,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:14:07,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:07,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 12:14:07,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:07,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-16 12:14:07,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:07,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-16 12:14:07,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:07,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-16 12:14:07,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:07,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-16 12:14:07,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:07,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-16 12:14:07,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:07,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-11-16 12:14:07,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:07,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-16 12:14:07,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:07,554 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2022-11-16 12:14:07,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:14:07,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007495551] [2022-11-16 12:14:07,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007495551] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:14:07,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:14:07,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:14:07,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480323050] [2022-11-16 12:14:07,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:14:07,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:14:07,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:14:07,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:14:07,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:14:07,557 INFO L87 Difference]: Start difference. First operand 25784 states and 39467 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-16 12:14:11,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:14:14,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:14:27,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:14:27,945 INFO L93 Difference]: Finished difference Result 28190 states and 43816 transitions. [2022-11-16 12:14:27,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:14:27,945 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 224 [2022-11-16 12:14:27,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:14:28,084 INFO L225 Difference]: With dead ends: 28190 [2022-11-16 12:14:28,085 INFO L226 Difference]: Without dead ends: 28187 [2022-11-16 12:14:28,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:14:28,104 INFO L413 NwaCegarLoop]: 4418 mSDtfsCounter, 7347 mSDsluCounter, 2753 mSDsCounter, 0 mSdLazyCounter, 2548 mSolverCounterSat, 3856 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7949 SdHoareTripleChecker+Valid, 7171 SdHoareTripleChecker+Invalid, 6405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3856 IncrementalHoareTripleChecker+Valid, 2548 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:14:28,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7949 Valid, 7171 Invalid, 6405 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3856 Valid, 2548 Invalid, 1 Unknown, 0 Unchecked, 19.1s Time] [2022-11-16 12:14:28,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28187 states. [2022-11-16 12:14:29,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28187 to 25783. [2022-11-16 12:14:29,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25783 states, 18623 states have (on average 1.4384900391988402) internal successors, (26789), 19034 states have internal predecessors, (26789), 6265 states have call successors, (6265), 899 states have call predecessors, (6265), 894 states have return successors, (6411), 6121 states have call predecessors, (6411), 6255 states have call successors, (6411) [2022-11-16 12:14:29,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25783 states to 25783 states and 39465 transitions. [2022-11-16 12:14:29,797 INFO L78 Accepts]: Start accepts. Automaton has 25783 states and 39465 transitions. Word has length 224 [2022-11-16 12:14:29,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:14:29,798 INFO L495 AbstractCegarLoop]: Abstraction has 25783 states and 39465 transitions. [2022-11-16 12:14:29,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-16 12:14:29,798 INFO L276 IsEmpty]: Start isEmpty. Operand 25783 states and 39465 transitions. [2022-11-16 12:14:29,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-11-16 12:14:29,802 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:14:29,802 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:14:29,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:14:29,803 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:14:29,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:14:29,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1309488670, now seen corresponding path program 1 times [2022-11-16 12:14:29,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:14:29,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965633010] [2022-11-16 12:14:29,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:14:29,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:14:29,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:30,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:14:30,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:30,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:14:30,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:30,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:14:30,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:30,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:14:30,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:30,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:14:30,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:30,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:14:30,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:30,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:14:30,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:30,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:14:30,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:30,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:14:30,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:30,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:14:30,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:30,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:14:30,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:30,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:14:30,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:30,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:14:30,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:30,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:14:30,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:30,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:14:30,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:30,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:14:30,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:30,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:14:30,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:30,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:14:30,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:30,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:14:30,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:30,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:14:30,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:30,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:14:30,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:30,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-16 12:14:30,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:30,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:14:30,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:30,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:14:30,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:30,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-16 12:14:30,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:30,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:14:30,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:30,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:14:30,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:30,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 12:14:30,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:30,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-16 12:14:30,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:30,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-16 12:14:30,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:30,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-16 12:14:30,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:30,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-16 12:14:30,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:30,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-16 12:14:30,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:30,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-11-16 12:14:30,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:30,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-16 12:14:30,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:30,835 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2022-11-16 12:14:30,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:14:30,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965633010] [2022-11-16 12:14:30,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965633010] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:14:30,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:14:30,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:14:30,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586325604] [2022-11-16 12:14:30,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:14:30,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:14:30,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:14:30,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:14:30,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:14:30,838 INFO L87 Difference]: Start difference. First operand 25783 states and 39465 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-16 12:14:35,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:14:37,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:14:39,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:14:41,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:14:55,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:15:03,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:15:17,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:15:17,403 INFO L93 Difference]: Finished difference Result 28189 states and 43814 transitions. [2022-11-16 12:15:17,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:15:17,404 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 225 [2022-11-16 12:15:17,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:15:17,516 INFO L225 Difference]: With dead ends: 28189 [2022-11-16 12:15:17,517 INFO L226 Difference]: Without dead ends: 28186 [2022-11-16 12:15:17,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:15:17,534 INFO L413 NwaCegarLoop]: 4407 mSDtfsCounter, 6317 mSDsluCounter, 7467 mSDsCounter, 0 mSdLazyCounter, 4934 mSolverCounterSat, 2699 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6920 SdHoareTripleChecker+Valid, 11874 SdHoareTripleChecker+Invalid, 7636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2699 IncrementalHoareTripleChecker+Valid, 4934 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:15:17,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6920 Valid, 11874 Invalid, 7636 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2699 Valid, 4934 Invalid, 3 Unknown, 0 Unchecked, 45.0s Time] [2022-11-16 12:15:17,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28186 states. [2022-11-16 12:15:18,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28186 to 25782. [2022-11-16 12:15:18,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25782 states, 18623 states have (on average 1.438436342157547) internal successors, (26788), 19033 states have internal predecessors, (26788), 6264 states have call successors, (6264), 899 states have call predecessors, (6264), 894 states have return successors, (6411), 6121 states have call predecessors, (6411), 6255 states have call successors, (6411) [2022-11-16 12:15:19,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25782 states to 25782 states and 39463 transitions. [2022-11-16 12:15:19,018 INFO L78 Accepts]: Start accepts. Automaton has 25782 states and 39463 transitions. Word has length 225 [2022-11-16 12:15:19,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:15:19,018 INFO L495 AbstractCegarLoop]: Abstraction has 25782 states and 39463 transitions. [2022-11-16 12:15:19,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-16 12:15:19,019 INFO L276 IsEmpty]: Start isEmpty. Operand 25782 states and 39463 transitions. [2022-11-16 12:15:19,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-11-16 12:15:19,022 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:15:19,023 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:15:19,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:15:19,023 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:15:19,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:15:19,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1938103868, now seen corresponding path program 1 times [2022-11-16 12:15:19,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:15:19,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467929119] [2022-11-16 12:15:19,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:15:19,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:15:19,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:19,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:15:19,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:19,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:15:19,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:19,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:15:19,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:19,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:15:19,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:19,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:15:19,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:19,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:15:19,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:19,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:15:19,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:19,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:15:19,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:19,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:15:19,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:19,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:15:19,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:19,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:15:19,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:19,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:15:19,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:19,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:15:19,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:19,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:15:19,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:19,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:15:19,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:19,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:15:19,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:19,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:15:19,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:19,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:15:19,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:19,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:15:19,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:19,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:15:19,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:19,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:15:19,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:19,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-16 12:15:19,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:19,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:15:19,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:20,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:15:20,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:20,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-16 12:15:20,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:20,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:15:20,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:20,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:15:20,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:20,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 12:15:20,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:20,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-16 12:15:20,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:20,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-16 12:15:20,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:20,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-16 12:15:20,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:20,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-16 12:15:20,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:20,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-16 12:15:20,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:20,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-11-16 12:15:20,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:20,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-16 12:15:20,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:20,199 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2022-11-16 12:15:20,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:15:20,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467929119] [2022-11-16 12:15:20,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467929119] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:15:20,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:15:20,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:15:20,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843487630] [2022-11-16 12:15:20,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:15:20,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:15:20,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:15:20,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:15:20,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:15:20,203 INFO L87 Difference]: Start difference. First operand 25782 states and 39463 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-16 12:15:23,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:15:25,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:15:27,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:15:35,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:15:41,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:15:41,926 INFO L93 Difference]: Finished difference Result 28188 states and 43812 transitions. [2022-11-16 12:15:41,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:15:41,926 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 226 [2022-11-16 12:15:41,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:15:42,040 INFO L225 Difference]: With dead ends: 28188 [2022-11-16 12:15:42,040 INFO L226 Difference]: Without dead ends: 28185 [2022-11-16 12:15:42,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:15:42,058 INFO L413 NwaCegarLoop]: 4448 mSDtfsCounter, 7307 mSDsluCounter, 2753 mSDsCounter, 0 mSdLazyCounter, 2546 mSolverCounterSat, 3834 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7907 SdHoareTripleChecker+Valid, 7201 SdHoareTripleChecker+Invalid, 6382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3834 IncrementalHoareTripleChecker+Valid, 2546 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:15:42,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7907 Valid, 7201 Invalid, 6382 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3834 Valid, 2546 Invalid, 2 Unknown, 0 Unchecked, 20.2s Time] [2022-11-16 12:15:42,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28185 states. [2022-11-16 12:15:43,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28185 to 25781. [2022-11-16 12:15:43,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25781 states, 18623 states have (on average 1.438382645116254) internal successors, (26787), 19032 states have internal predecessors, (26787), 6263 states have call successors, (6263), 899 states have call predecessors, (6263), 894 states have return successors, (6411), 6121 states have call predecessors, (6411), 6255 states have call successors, (6411) [2022-11-16 12:15:43,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25781 states to 25781 states and 39461 transitions. [2022-11-16 12:15:43,625 INFO L78 Accepts]: Start accepts. Automaton has 25781 states and 39461 transitions. Word has length 226 [2022-11-16 12:15:43,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:15:43,626 INFO L495 AbstractCegarLoop]: Abstraction has 25781 states and 39461 transitions. [2022-11-16 12:15:43,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-16 12:15:43,626 INFO L276 IsEmpty]: Start isEmpty. Operand 25781 states and 39461 transitions. [2022-11-16 12:15:43,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-11-16 12:15:43,628 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:15:43,628 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:15:43,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:15:43,629 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:15:43,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:15:43,629 INFO L85 PathProgramCache]: Analyzing trace with hash -49656607, now seen corresponding path program 1 times [2022-11-16 12:15:43,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:15:43,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017458399] [2022-11-16 12:15:43,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:15:43,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:15:43,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:44,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:15:44,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:44,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:15:44,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:44,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:15:44,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:44,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:15:44,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:44,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:15:44,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:44,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:15:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:44,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:15:44,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:44,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:15:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:44,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:15:44,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:44,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:15:44,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:44,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:15:44,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:44,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:15:44,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:44,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:15:44,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:44,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:15:44,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:44,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:15:44,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:44,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:15:44,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:44,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:15:44,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:44,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:15:44,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:44,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:15:44,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:44,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:15:44,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:44,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:15:44,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:44,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-16 12:15:44,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:44,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:15:44,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:44,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:15:44,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:44,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-16 12:15:44,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:44,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:15:44,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:44,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:15:44,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:44,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 12:15:44,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:44,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-16 12:15:44,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:44,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-16 12:15:44,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:44,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-16 12:15:44,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:44,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-16 12:15:44,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:44,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-16 12:15:44,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:44,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-11-16 12:15:44,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:44,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-16 12:15:44,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:44,769 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2022-11-16 12:15:44,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:15:44,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017458399] [2022-11-16 12:15:44,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017458399] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:15:44,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:15:44,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:15:44,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616511543] [2022-11-16 12:15:44,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:15:44,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:15:44,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:15:44,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:15:44,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:15:44,773 INFO L87 Difference]: Start difference. First operand 25781 states and 39461 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-16 12:15:49,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:15:52,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:15:55,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:16:04,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:16:06,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:16:16,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:16:16,549 INFO L93 Difference]: Finished difference Result 81511 states and 126403 transitions. [2022-11-16 12:16:16,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:16:16,550 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 227 [2022-11-16 12:16:16,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:16:16,768 INFO L225 Difference]: With dead ends: 81511 [2022-11-16 12:16:16,769 INFO L226 Difference]: Without dead ends: 55767 [2022-11-16 12:16:16,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:16:16,889 INFO L413 NwaCegarLoop]: 5602 mSDtfsCounter, 9874 mSDsluCounter, 6959 mSDsCounter, 0 mSdLazyCounter, 5376 mSolverCounterSat, 6698 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10513 SdHoareTripleChecker+Valid, 12561 SdHoareTripleChecker+Invalid, 12077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6698 IncrementalHoareTripleChecker+Valid, 5376 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:16:16,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10513 Valid, 12561 Invalid, 12077 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6698 Valid, 5376 Invalid, 3 Unknown, 0 Unchecked, 27.9s Time] [2022-11-16 12:16:16,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55767 states. [2022-11-16 12:16:20,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55767 to 50928. [2022-11-16 12:16:20,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50928 states, 36879 states have (on average 1.4393557309037663) internal successors, (53082), 37617 states have internal predecessors, (53082), 12318 states have call successors, (12318), 1756 states have call predecessors, (12318), 1730 states have return successors, (12801), 12070 states have call predecessors, (12801), 12309 states have call successors, (12801) [2022-11-16 12:16:20,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50928 states to 50928 states and 78201 transitions. [2022-11-16 12:16:20,402 INFO L78 Accepts]: Start accepts. Automaton has 50928 states and 78201 transitions. Word has length 227 [2022-11-16 12:16:20,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:16:20,403 INFO L495 AbstractCegarLoop]: Abstraction has 50928 states and 78201 transitions. [2022-11-16 12:16:20,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-16 12:16:20,404 INFO L276 IsEmpty]: Start isEmpty. Operand 50928 states and 78201 transitions. [2022-11-16 12:16:20,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-11-16 12:16:20,407 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:16:20,407 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:16:20,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:16:20,408 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:16:20,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:16:20,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1540684321, now seen corresponding path program 1 times [2022-11-16 12:16:20,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:16:20,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332505847] [2022-11-16 12:16:20,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:16:20,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:16:20,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:20,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:16:20,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:20,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:16:20,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:20,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:16:20,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:20,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:16:20,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:20,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:16:20,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:20,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:16:20,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:20,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:16:20,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:20,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:16:20,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:20,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:16:20,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:21,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:16:21,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:21,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:16:21,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:21,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:16:21,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:21,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:16:21,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:21,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:16:21,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:21,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:16:21,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:21,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:16:21,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:21,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:16:21,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:21,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:16:21,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:21,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:16:21,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:21,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:16:21,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:21,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:16:21,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:21,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-16 12:16:21,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:21,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:16:21,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:21,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:16:21,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:21,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-16 12:16:21,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:21,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:16:21,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:21,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:16:21,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:21,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 12:16:21,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:21,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-16 12:16:21,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:21,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-16 12:16:21,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:21,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-16 12:16:21,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:21,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-16 12:16:21,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:21,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-16 12:16:21,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:21,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-11-16 12:16:21,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:21,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-16 12:16:21,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:21,441 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2022-11-16 12:16:21,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:16:21,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332505847] [2022-11-16 12:16:21,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332505847] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:16:21,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:16:21,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:16:21,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743026628] [2022-11-16 12:16:21,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:16:21,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:16:21,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:16:21,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:16:21,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:16:21,443 INFO L87 Difference]: Start difference. First operand 50928 states and 78201 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-16 12:16:25,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:16:27,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:16:29,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:16:31,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:16:55,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:17:09,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:17:09,591 INFO L93 Difference]: Finished difference Result 55738 states and 86950 transitions. [2022-11-16 12:17:09,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:17:09,592 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 228 [2022-11-16 12:17:09,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:17:09,832 INFO L225 Difference]: With dead ends: 55738 [2022-11-16 12:17:09,832 INFO L226 Difference]: Without dead ends: 55725 [2022-11-16 12:17:09,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:17:09,867 INFO L413 NwaCegarLoop]: 4411 mSDtfsCounter, 6295 mSDsluCounter, 7468 mSDsCounter, 0 mSdLazyCounter, 4952 mSolverCounterSat, 2708 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6897 SdHoareTripleChecker+Valid, 11879 SdHoareTripleChecker+Invalid, 7662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2708 IncrementalHoareTripleChecker+Valid, 4952 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:17:09,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6897 Valid, 11879 Invalid, 7662 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2708 Valid, 4952 Invalid, 2 Unknown, 0 Unchecked, 44.8s Time] [2022-11-16 12:17:09,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55725 states. [2022-11-16 12:17:13,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55725 to 50917. [2022-11-16 12:17:13,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50917 states, 36869 states have (on average 1.4392850362092815) internal successors, (53065), 37606 states have internal predecessors, (53065), 12317 states have call successors, (12317), 1756 states have call predecessors, (12317), 1730 states have return successors, (12801), 12070 states have call predecessors, (12801), 12309 states have call successors, (12801) [2022-11-16 12:17:13,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50917 states to 50917 states and 78183 transitions. [2022-11-16 12:17:13,531 INFO L78 Accepts]: Start accepts. Automaton has 50917 states and 78183 transitions. Word has length 228 [2022-11-16 12:17:13,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:17:13,532 INFO L495 AbstractCegarLoop]: Abstraction has 50917 states and 78183 transitions. [2022-11-16 12:17:13,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-16 12:17:13,532 INFO L276 IsEmpty]: Start isEmpty. Operand 50917 states and 78183 transitions. [2022-11-16 12:17:13,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-11-16 12:17:13,537 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:17:13,538 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:17:13,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:17:13,538 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:17:13,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:17:13,539 INFO L85 PathProgramCache]: Analyzing trace with hash -2056541699, now seen corresponding path program 1 times [2022-11-16 12:17:13,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:17:13,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347772301] [2022-11-16 12:17:13,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:17:13,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:17:13,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:17:14,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:17:14,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:17:14,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:17:14,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:17:14,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:17:14,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:17:14,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:17:14,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:17:14,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:17:14,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:17:14,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:17:14,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:17:14,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:17:14,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:17:14,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:17:14,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:17:14,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:17:14,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:17:14,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:17:14,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:17:14,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-16 12:17:14,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:17:14,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:17:14,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-16 12:17:14,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:17:14,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:17:14,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 12:17:14,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-16 12:17:14,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-16 12:17:14,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-16 12:17:14,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-16 12:17:14,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-16 12:17:14,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-11-16 12:17:14,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-16 12:17:14,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-11-16 12:17:14,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:17:14,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:17:14,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-11-16 12:17:14,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:17:14,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 12:17:14,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:14,492 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2022-11-16 12:17:14,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:17:14,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347772301] [2022-11-16 12:17:14,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347772301] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:17:14,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:17:14,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:17:14,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483975385] [2022-11-16 12:17:14,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:17:14,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:17:14,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:17:14,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:17:14,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:17:14,495 INFO L87 Difference]: Start difference. First operand 50917 states and 78183 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-16 12:17:19,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:17:21,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:17:33,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:17:39,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:17:51,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:17:53,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:18:08,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:18:17,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:17,424 INFO L93 Difference]: Finished difference Result 162265 states and 252042 transitions. [2022-11-16 12:18:17,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:18:17,424 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 262 [2022-11-16 12:18:17,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:18,026 INFO L225 Difference]: With dead ends: 162265 [2022-11-16 12:18:18,027 INFO L226 Difference]: Without dead ends: 111385 [2022-11-16 12:18:18,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:18:18,193 INFO L413 NwaCegarLoop]: 2983 mSDtfsCounter, 14397 mSDsluCounter, 5529 mSDsCounter, 0 mSdLazyCounter, 12047 mSolverCounterSat, 9846 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15130 SdHoareTripleChecker+Valid, 8512 SdHoareTripleChecker+Invalid, 21894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9846 IncrementalHoareTripleChecker+Valid, 12047 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:18,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15130 Valid, 8512 Invalid, 21894 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9846 Valid, 12047 Invalid, 1 Unknown, 0 Unchecked, 54.7s Time] [2022-11-16 12:18:18,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111385 states. [2022-11-16 12:18:25,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111385 to 101635. [2022-11-16 12:18:25,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101635 states, 73557 states have (on average 1.4390608643636909) internal successors, (105853), 75030 states have internal predecessors, (105853), 24521 states have call successors, (24521), 3490 states have call predecessors, (24521), 3556 states have return successors, (25797), 24114 states have call predecessors, (25797), 24513 states have call successors, (25797) [2022-11-16 12:18:26,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101635 states to 101635 states and 156171 transitions. [2022-11-16 12:18:26,189 INFO L78 Accepts]: Start accepts. Automaton has 101635 states and 156171 transitions. Word has length 262 [2022-11-16 12:18:26,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:18:26,189 INFO L495 AbstractCegarLoop]: Abstraction has 101635 states and 156171 transitions. [2022-11-16 12:18:26,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-16 12:18:26,190 INFO L276 IsEmpty]: Start isEmpty. Operand 101635 states and 156171 transitions. [2022-11-16 12:18:26,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2022-11-16 12:18:26,196 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:18:26,196 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:18:26,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:18:26,197 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:18:26,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:18:26,198 INFO L85 PathProgramCache]: Analyzing trace with hash 2117536059, now seen corresponding path program 1 times [2022-11-16 12:18:26,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:18:26,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548287717] [2022-11-16 12:18:26,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:18:26,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:18:26,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:26,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:18:26,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:26,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:18:26,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:26,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:18:26,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:26,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:18:26,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:26,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:18:26,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:26,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:18:26,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:18:27,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:18:27,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:18:27,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:18:27,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:18:27,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:18:27,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:18:27,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:18:27,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:18:27,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:18:27,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:18:27,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:18:27,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:18:27,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:18:27,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:18:27,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-16 12:18:27,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:18:27,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:18:27,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-16 12:18:27,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:18:27,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:18:27,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 12:18:27,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-16 12:18:27,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-16 12:18:27,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-16 12:18:27,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-16 12:18:27,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-16 12:18:27,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-11-16 12:18:27,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-16 12:18:27,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-11-16 12:18:27,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:18:27,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:18:27,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-11-16 12:18:27,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:18:27,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:18:27,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-11-16 12:18:27,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:18:27,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:18:27,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-11-16 12:18:27,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:18:27,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-11-16 12:18:27,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:18:27,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:18:27,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-11-16 12:18:27,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:18:27,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-16 12:18:27,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:18:27,489 INFO L134 CoverageAnalysis]: Checked inductivity of 1068 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1068 trivial. 0 not checked. [2022-11-16 12:18:27,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:18:27,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548287717] [2022-11-16 12:18:27,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548287717] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:18:27,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:18:27,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:18:27,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534331954] [2022-11-16 12:18:27,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:18:27,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:18:27,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:18:27,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:18:27,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:18:27,492 INFO L87 Difference]: Start difference. First operand 101635 states and 156171 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (33), 7 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-16 12:18:32,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:18:34,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:18:36,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:18:38,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:18:40,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:18:48,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:18:51,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:19:09,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:19:22,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:19:24,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:19:55,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:19:55,867 INFO L93 Difference]: Finished difference Result 323055 states and 501846 transitions. [2022-11-16 12:19:55,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:19:55,867 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (33), 7 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 311 [2022-11-16 12:19:55,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:19:57,031 INFO L225 Difference]: With dead ends: 323055 [2022-11-16 12:19:57,031 INFO L226 Difference]: Without dead ends: 221457 [2022-11-16 12:19:57,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:19:57,581 INFO L413 NwaCegarLoop]: 3050 mSDtfsCounter, 14540 mSDsluCounter, 7647 mSDsCounter, 0 mSdLazyCounter, 15113 mSolverCounterSat, 9846 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 68.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15264 SdHoareTripleChecker+Valid, 10697 SdHoareTripleChecker+Invalid, 24964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 9846 IncrementalHoareTripleChecker+Valid, 15113 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 71.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:19:57,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15264 Valid, 10697 Invalid, 24964 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [9846 Valid, 15113 Invalid, 5 Unknown, 0 Unchecked, 71.9s Time] [2022-11-16 12:19:57,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221457 states.