./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eccb899-a080-4f6b-8982-6c8cce91278e/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eccb899-a080-4f6b-8982-6c8cce91278e/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_9eccb899-a080-4f6b-8982-6c8cce91278e/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eccb899-a080-4f6b-8982-6c8cce91278e/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eccb899-a080-4f6b-8982-6c8cce91278e/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_9eccb899-a080-4f6b-8982-6c8cce91278e/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 b1d9346b63752b34e66e21333a7236034d1604ec5ec14f79593d3da0c163d1d9 --- 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 11:57:53,471 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:57:53,473 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:57:53,497 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:57:53,500 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:57:53,504 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:57:53,507 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:57:53,510 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:57:53,515 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:57:53,522 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:57:53,524 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:57:53,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:57:53,527 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:57:53,530 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:57:53,531 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:57:53,533 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:57:53,533 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:57:53,534 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:57:53,536 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:57:53,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:57:53,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:57:53,545 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:57:53,547 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:57:53,547 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:57:53,551 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:57:53,551 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:57:53,552 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:57:53,553 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:57:53,553 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:57:53,554 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:57:53,555 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:57:53,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:57:53,556 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:57:53,557 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:57:53,564 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:57:53,565 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:57:53,566 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:57:53,566 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:57:53,566 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:57:53,567 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:57:53,568 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:57:53,569 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eccb899-a080-4f6b-8982-6c8cce91278e/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 11:57:53,619 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:57:53,619 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:57:53,619 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:57:53,619 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:57:53,620 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:57:53,620 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:57:53,621 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:57:53,621 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:57:53,621 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:57:53,622 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:57:53,622 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:57:53,622 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:57:53,622 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:57:53,622 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:57:53,623 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:57:53,623 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:57:53,623 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:57:53,623 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:57:53,623 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:57:53,624 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:57:53,624 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:57:53,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:57:53,624 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:57:53,624 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:57:53,625 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:57:53,625 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:57:53,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:57:53,625 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:57:53,625 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:57:53,626 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:57:53,630 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_9eccb899-a080-4f6b-8982-6c8cce91278e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eccb899-a080-4f6b-8982-6c8cce91278e/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1d9346b63752b34e66e21333a7236034d1604ec5ec14f79593d3da0c163d1d9 [2022-11-16 11:57:53,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:57:53,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:57:53,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:57:53,934 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:57:53,935 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:57:53,937 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eccb899-a080-4f6b-8982-6c8cce91278e/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-11-16 11:57:54,040 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eccb899-a080-4f6b-8982-6c8cce91278e/bin/uautomizer-tPACEb0tL8/data/01fbadcad/c86156bb08ea4e5e88237eef7977cdcd/FLAGe8fbfd4ef [2022-11-16 11:57:55,047 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:57:55,048 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eccb899-a080-4f6b-8982-6c8cce91278e/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-11-16 11:57:55,107 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eccb899-a080-4f6b-8982-6c8cce91278e/bin/uautomizer-tPACEb0tL8/data/01fbadcad/c86156bb08ea4e5e88237eef7977cdcd/FLAGe8fbfd4ef [2022-11-16 11:57:55,394 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eccb899-a080-4f6b-8982-6c8cce91278e/bin/uautomizer-tPACEb0tL8/data/01fbadcad/c86156bb08ea4e5e88237eef7977cdcd [2022-11-16 11:57:55,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:57:55,398 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:57:55,403 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:57:55,403 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:57:55,407 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:57:55,407 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:57:55" (1/1) ... [2022-11-16 11:57:55,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c26c628 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:57:55, skipping insertion in model container [2022-11-16 11:57:55,409 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:57:55" (1/1) ... [2022-11-16 11:57:55,416 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:57:55,624 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:57:59,279 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_9eccb899-a080-4f6b-8982-6c8cce91278e/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i[381126,381139] [2022-11-16 11:57:59,671 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:57:59,772 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:58:00,484 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_9eccb899-a080-4f6b-8982-6c8cce91278e/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i[381126,381139] [2022-11-16 11:58:00,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:58:00,790 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:58:00,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:00 WrapperNode [2022-11-16 11:58:00,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:58:00,793 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:58:00,793 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:58:00,793 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:58:00,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:00" (1/1) ... [2022-11-16 11:58:00,952 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:00" (1/1) ... [2022-11-16 11:58:01,523 INFO L138 Inliner]: procedures = 549, calls = 5021, calls flagged for inlining = 246, calls inlined = 225, statements flattened = 9869 [2022-11-16 11:58:01,524 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:58:01,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:58:01,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:58:01,525 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:58:01,536 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:00" (1/1) ... [2022-11-16 11:58:01,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:00" (1/1) ... [2022-11-16 11:58:01,813 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:00" (1/1) ... [2022-11-16 11:58:01,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:00" (1/1) ... [2022-11-16 11:58:02,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:00" (1/1) ... [2022-11-16 11:58:02,465 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:00" (1/1) ... [2022-11-16 11:58:02,514 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:00" (1/1) ... [2022-11-16 11:58:02,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:00" (1/1) ... [2022-11-16 11:58:02,610 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:58:02,612 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:58:02,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:58:02,613 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:58:02,614 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:00" (1/1) ... [2022-11-16 11:58:02,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:58:02,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eccb899-a080-4f6b-8982-6c8cce91278e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:58:02,652 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eccb899-a080-4f6b-8982-6c8cce91278e/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:58:02,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eccb899-a080-4f6b-8982-6c8cce91278e/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:58:02,693 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-16 11:58:02,694 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-16 11:58:02,694 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_urb_cleanup [2022-11-16 11:58:02,694 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_urb_cleanup [2022-11-16 11:58:02,694 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-11-16 11:58:02,694 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-11-16 11:58:02,694 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-16 11:58:02,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-16 11:58:02,695 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-16 11:58:02,695 INFO L130 BoogieDeclarations]: Found specification of procedure pm_alsa_resume [2022-11-16 11:58:02,695 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_alsa_resume [2022-11-16 11:58:02,695 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2022-11-16 11:58:02,695 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2022-11-16 11:58:02,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 11:58:02,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 11:58:02,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_3 [2022-11-16 11:58:02,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_3 [2022-11-16 11:58:02,696 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2022-11-16 11:58:02,696 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2022-11-16 11:58:02,696 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_stop_streaming [2022-11-16 11:58:02,696 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_stop_streaming [2022-11-16 11:58:02,696 INFO L130 BoogieDeclarations]: Found specification of procedure vdev_init [2022-11-16 11:58:02,696 INFO L138 BoogieDeclarations]: Found implementation of procedure vdev_init [2022-11-16 11:58:02,697 INFO L130 BoogieDeclarations]: Found specification of procedure pd_vidioc_s_fmt [2022-11-16 11:58:02,697 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_vidioc_s_fmt [2022-11-16 11:58:02,697 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_check_mode_dvbt [2022-11-16 11:58:02,697 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_check_mode_dvbt [2022-11-16 11:58:02,697 INFO L130 BoogieDeclarations]: Found specification of procedure set_frequency___0 [2022-11-16 11:58:02,697 INFO L138 BoogieDeclarations]: Found implementation of procedure set_frequency___0 [2022-11-16 11:58:02,697 INFO L130 BoogieDeclarations]: Found specification of procedure set_tuner_mode [2022-11-16 11:58:02,697 INFO L138 BoogieDeclarations]: Found implementation of procedure set_tuner_mode [2022-11-16 11:58:02,698 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fm_close [2022-11-16 11:58:02,698 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fm_close [2022-11-16 11:58:02,698 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-16 11:58:02,698 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-16 11:58:02,698 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_capture_pointer [2022-11-16 11:58:02,698 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_capture_pointer [2022-11-16 11:58:02,698 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_to_vmalloc [2022-11-16 11:58:02,699 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_to_vmalloc [2022-11-16 11:58:02,699 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-16 11:58:02,699 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-16 11:58:02,699 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2022-11-16 11:58:02,699 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2022-11-16 11:58:02,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:58:02,699 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_capture_trigger [2022-11-16 11:58:02,699 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_capture_trigger [2022-11-16 11:58:02,700 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_check_mode_radio [2022-11-16 11:58:02,700 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_check_mode_radio [2022-11-16 11:58:02,700 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_pcm_close [2022-11-16 11:58:02,700 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_pcm_close [2022-11-16 11:58:02,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-16 11:58:02,700 INFO L130 BoogieDeclarations]: Found specification of procedure check_control_id [2022-11-16 11:58:02,700 INFO L138 BoogieDeclarations]: Found implementation of procedure check_control_id [2022-11-16 11:58:02,700 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-16 11:58:02,701 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-16 11:58:02,701 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2022-11-16 11:58:02,701 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2022-11-16 11:58:02,701 INFO L130 BoogieDeclarations]: Found specification of procedure pd_buf_queue [2022-11-16 11:58:02,701 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_buf_queue [2022-11-16 11:58:02,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-16 11:58:02,701 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-11-16 11:58:02,701 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-11-16 11:58:02,702 INFO L130 BoogieDeclarations]: Found specification of procedure set_frequency [2022-11-16 11:58:02,702 INFO L138 BoogieDeclarations]: Found implementation of procedure set_frequency [2022-11-16 11:58:02,702 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_mmap [2022-11-16 11:58:02,702 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_mmap [2022-11-16 11:58:02,702 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2022-11-16 11:58:02,702 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2022-11-16 11:58:02,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:58:02,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-16 11:58:02,702 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-16 11:58:02,703 INFO L130 BoogieDeclarations]: Found specification of procedure usb_transfer_stop [2022-11-16 11:58:02,703 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_transfer_stop [2022-11-16 11:58:02,703 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-16 11:58:02,703 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-16 11:58:02,703 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_frontend [2022-11-16 11:58:02,703 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_frontend [2022-11-16 11:58:02,703 INFO L130 BoogieDeclarations]: Found specification of procedure is_working [2022-11-16 11:58:02,703 INFO L138 BoogieDeclarations]: Found implementation of procedure is_working [2022-11-16 11:58:02,703 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-16 11:58:02,704 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-16 11:58:02,704 INFO L130 BoogieDeclarations]: Found specification of procedure pm_alsa_suspend [2022-11-16 11:58:02,704 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_alsa_suspend [2022-11-16 11:58:02,704 INFO L130 BoogieDeclarations]: Found specification of procedure fire_audio_urb [2022-11-16 11:58:02,704 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_audio_urb [2022-11-16 11:58:02,704 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-11-16 11:58:02,704 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-11-16 11:58:02,704 INFO L130 BoogieDeclarations]: Found specification of procedure start_video_stream [2022-11-16 11:58:02,705 INFO L138 BoogieDeclarations]: Found implementation of procedure start_video_stream [2022-11-16 11:58:02,705 INFO L130 BoogieDeclarations]: Found specification of procedure video_get_drvdata [2022-11-16 11:58:02,705 INFO L138 BoogieDeclarations]: Found implementation of procedure video_get_drvdata [2022-11-16 11:58:02,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-16 11:58:02,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-16 11:58:02,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:58:02,705 INFO L130 BoogieDeclarations]: Found specification of procedure get_audio_std [2022-11-16 11:58:02,705 INFO L138 BoogieDeclarations]: Found implementation of procedure get_audio_std [2022-11-16 11:58:02,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:58:02,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_poseidon [2022-11-16 11:58:02,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_poseidon [2022-11-16 11:58:02,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-16 11:58:02,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-16 11:58:02,706 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-16 11:58:02,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-16 11:58:02,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:58:02,706 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-16 11:58:02,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_poseidon [2022-11-16 11:58:02,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_poseidon [2022-11-16 11:58:02,707 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_capture_open [2022-11-16 11:58:02,707 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_capture_open [2022-11-16 11:58:02,707 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_signal_strength [2022-11-16 11:58:02,707 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_signal_strength [2022-11-16 11:58:02,707 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_release [2022-11-16 11:58:02,707 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_release [2022-11-16 11:58:02,707 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_open [2022-11-16 11:58:02,708 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_open [2022-11-16 11:58:02,708 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-16 11:58:02,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-16 11:58:02,708 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-11-16 11:58:02,708 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-11-16 11:58:02,708 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2022-11-16 11:58:02,708 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2022-11-16 11:58:02,708 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-16 11:58:02,709 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-16 11:58:02,709 INFO L130 BoogieDeclarations]: Found specification of procedure send_set_req [2022-11-16 11:58:02,709 INFO L138 BoogieDeclarations]: Found implementation of procedure send_set_req [2022-11-16 11:58:02,709 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-16 11:58:02,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-16 11:58:02,709 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_iolock [2022-11-16 11:58:02,709 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_iolock [2022-11-16 11:58:02,709 INFO L130 BoogieDeclarations]: Found specification of procedure init_copy [2022-11-16 11:58:02,709 INFO L138 BoogieDeclarations]: Found implementation of procedure init_copy [2022-11-16 11:58:02,710 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-11-16 11:58:02,710 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-11-16 11:58:02,710 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_bulk_urbs_generic [2022-11-16 11:58:02,710 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_bulk_urbs_generic [2022-11-16 11:58:02,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:58:02,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:58:02,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-16 11:58:02,710 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-16 11:58:02,710 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-16 11:58:02,710 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-16 11:58:02,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-16 11:58:02,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-16 11:58:02,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-16 11:58:02,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-16 11:58:02,711 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2022-11-16 11:58:02,711 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2022-11-16 11:58:02,711 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2022-11-16 11:58:02,711 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2022-11-16 11:58:02,711 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_pd_get_page [2022-11-16 11:58:02,712 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_pd_get_page [2022-11-16 11:58:02,712 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-16 11:58:02,712 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-16 11:58:02,712 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2022-11-16 11:58:02,712 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2022-11-16 11:58:02,712 INFO L130 BoogieDeclarations]: Found specification of procedure free_all_urb [2022-11-16 11:58:02,712 INFO L138 BoogieDeclarations]: Found implementation of procedure free_all_urb [2022-11-16 11:58:02,712 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release [2022-11-16 11:58:02,712 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release [2022-11-16 11:58:02,713 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_get_fe [2022-11-16 11:58:02,713 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_get_fe [2022-11-16 11:58:02,713 INFO L130 BoogieDeclarations]: Found specification of procedure pd_dvb_usb_device_cleanup [2022-11-16 11:58:02,713 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_dvb_usb_device_cleanup [2022-11-16 11:58:02,713 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_start_streaming [2022-11-16 11:58:02,713 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_start_streaming [2022-11-16 11:58:02,713 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-16 11:58:02,713 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-16 11:58:02,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-16 11:58:02,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-16 11:58:02,714 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_mmap_free [2022-11-16 11:58:02,714 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_mmap_free [2022-11-16 11:58:02,714 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-16 11:58:02,714 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-16 11:58:02,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 11:58:02,714 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 11:58:02,714 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_intf [2022-11-16 11:58:02,715 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_intf [2022-11-16 11:58:02,715 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 11:58:02,715 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 11:58:02,715 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-16 11:58:02,715 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-16 11:58:02,715 INFO L130 BoogieDeclarations]: Found specification of procedure pd_vidioc_s_tuner [2022-11-16 11:58:02,715 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_vidioc_s_tuner [2022-11-16 11:58:02,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:58:02,715 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-16 11:58:02,716 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-16 11:58:02,716 INFO L130 BoogieDeclarations]: Found specification of procedure set_std [2022-11-16 11:58:02,716 INFO L138 BoogieDeclarations]: Found implementation of procedure set_std [2022-11-16 11:58:02,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 11:58:02,716 INFO L130 BoogieDeclarations]: Found specification of procedure free_all_urb_generic [2022-11-16 11:58:02,716 INFO L138 BoogieDeclarations]: Found implementation of procedure free_all_urb_generic [2022-11-16 11:58:02,716 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_ts_bus_ctrl [2022-11-16 11:58:02,716 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_ts_bus_ctrl [2022-11-16 11:58:02,717 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_exit [2022-11-16 11:58:02,717 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_exit [2022-11-16 11:58:02,717 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fm_open [2022-11-16 11:58:02,717 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fm_open [2022-11-16 11:58:02,717 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-11-16 11:58:02,717 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-11-16 11:58:02,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 11:58:02,717 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-16 11:58:02,717 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-16 11:58:02,718 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_status [2022-11-16 11:58:02,718 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_status [2022-11-16 11:58:02,718 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_stop [2022-11-16 11:58:02,718 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_stop [2022-11-16 11:58:02,718 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-16 11:58:02,718 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-16 11:58:02,718 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fe_release [2022-11-16 11:58:02,718 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fe_release [2022-11-16 11:58:02,719 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-16 11:58:02,719 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-16 11:58:02,719 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-11-16 11:58:02,719 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-11-16 11:58:02,719 INFO L130 BoogieDeclarations]: Found specification of procedure get_pd [2022-11-16 11:58:02,719 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pd [2022-11-16 11:58:02,719 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_disconnect [2022-11-16 11:58:02,719 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_disconnect [2022-11-16 11:58:02,719 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_poll [2022-11-16 11:58:02,720 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_poll [2022-11-16 11:58:02,720 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2022-11-16 11:58:02,720 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2022-11-16 11:58:02,720 INFO L130 BoogieDeclarations]: Found specification of procedure send_get_req [2022-11-16 11:58:02,720 INFO L138 BoogieDeclarations]: Found implementation of procedure send_get_req [2022-11-16 11:58:02,720 INFO L130 BoogieDeclarations]: Found specification of procedure video_register_device [2022-11-16 11:58:02,720 INFO L138 BoogieDeclarations]: Found implementation of procedure video_register_device [2022-11-16 11:58:02,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2022-11-16 11:58:02,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2022-11-16 11:58:02,721 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_hw_capture_params [2022-11-16 11:58:02,721 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_hw_capture_params [2022-11-16 11:58:02,721 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-16 11:58:02,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-16 11:58:02,721 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_unc_blocks [2022-11-16 11:58:02,721 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_unc_blocks [2022-11-16 11:58:02,721 INFO L130 BoogieDeclarations]: Found specification of procedure audio_buf_free [2022-11-16 11:58:02,721 INFO L138 BoogieDeclarations]: Found implementation of procedure audio_buf_free [2022-11-16 11:58:02,721 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-16 11:58:02,721 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-16 11:58:02,722 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fe_get_tune_settings [2022-11-16 11:58:02,722 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fe_get_tune_settings [2022-11-16 11:58:02,722 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_set_fe [2022-11-16 11:58:02,722 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_set_fe [2022-11-16 11:58:02,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:58:02,722 INFO L130 BoogieDeclarations]: Found specification of procedure hibernation_resume [2022-11-16 11:58:02,722 INFO L138 BoogieDeclarations]: Found implementation of procedure hibernation_resume [2022-11-16 11:58:02,722 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_hw_capture_free [2022-11-16 11:58:02,722 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_hw_capture_free [2022-11-16 11:58:02,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-16 11:58:02,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-16 11:58:02,723 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_resume [2022-11-16 11:58:02,723 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_resume [2022-11-16 11:58:02,723 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_checkmode [2022-11-16 11:58:02,723 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_checkmode [2022-11-16 11:58:02,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-16 11:58:02,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-16 11:58:02,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_udev [2022-11-16 11:58:02,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_udev [2022-11-16 11:58:02,724 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_input [2022-11-16 11:58:02,724 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_input [2022-11-16 11:58:02,724 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_lib_ioctl [2022-11-16 11:58:02,724 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_lib_ioctl [2022-11-16 11:58:02,724 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2022-11-16 11:58:02,724 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2022-11-16 11:58:02,724 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_queue_vmalloc_init [2022-11-16 11:58:02,724 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_queue_vmalloc_init [2022-11-16 11:58:02,724 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-16 11:58:02,725 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-16 11:58:02,725 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_free [2022-11-16 11:58:02,725 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_free [2022-11-16 11:58:02,725 INFO L130 BoogieDeclarations]: Found specification of procedure get_autopm_ref [2022-11-16 11:58:02,725 INFO L138 BoogieDeclarations]: Found implementation of procedure get_autopm_ref [2022-11-16 11:58:02,725 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fe_sleep [2022-11-16 11:58:02,725 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fe_sleep [2022-11-16 11:58:02,725 INFO L130 BoogieDeclarations]: Found specification of procedure pd_buf_setup [2022-11-16 11:58:02,725 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_buf_setup [2022-11-16 11:58:02,725 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_video_device [2022-11-16 11:58:02,726 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_video_device [2022-11-16 11:58:02,726 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_ber [2022-11-16 11:58:02,726 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_ber [2022-11-16 11:58:02,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:58:02,726 INFO L130 BoogieDeclarations]: Found specification of procedure set_debug_mode [2022-11-16 11:58:02,726 INFO L138 BoogieDeclarations]: Found implementation of procedure set_debug_mode [2022-11-16 11:58:02,726 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_prepare [2022-11-16 11:58:02,726 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_prepare [2022-11-16 11:58:04,119 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:58:04,127 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:58:14,180 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-16 12:04:20,885 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:04:20,906 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:04:20,906 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 12:04:20,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:04:20 BoogieIcfgContainer [2022-11-16 12:04:20,918 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:04:20,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:04:20,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:04:20,925 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:04:20,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:57:55" (1/3) ... [2022-11-16 12:04:20,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62d89441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:04:20, skipping insertion in model container [2022-11-16 12:04:20,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:00" (2/3) ... [2022-11-16 12:04:20,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62d89441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:04:20, skipping insertion in model container [2022-11-16 12:04:20,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:04:20" (3/3) ... [2022-11-16 12:04:20,932 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-11-16 12:04:20,952 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:04:20,953 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:04:21,065 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:04:21,072 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;@6344f6be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:04:21,072 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:04:21,084 INFO L276 IsEmpty]: Start isEmpty. Operand has 2666 states, 1881 states have (on average 1.3779904306220097) internal successors, (2592), 1916 states have internal predecessors, (2592), 651 states have call successors, (651), 133 states have call predecessors, (651), 132 states have return successors, (636), 635 states have call predecessors, (636), 636 states have call successors, (636) [2022-11-16 12:04:21,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-16 12:04:21,102 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:04:21,103 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:04:21,103 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:04:21,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:21,109 INFO L85 PathProgramCache]: Analyzing trace with hash -574043780, now seen corresponding path program 1 times [2022-11-16 12:04:21,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:21,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004922214] [2022-11-16 12:04:21,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:21,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:21,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:22,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:04:22,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:22,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:04:22,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:22,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:04:22,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:22,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:04:22,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:22,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:04:22,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:22,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:04:22,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:22,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:04:22,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:22,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:04:22,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:22,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:04:22,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:22,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:04:22,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:22,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:04:22,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:22,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 12:04:22,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:22,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:04:22,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:22,914 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-16 12:04:22,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:22,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004922214] [2022-11-16 12:04:22,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004922214] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:22,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:22,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:04:22,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337909587] [2022-11-16 12:04:22,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:22,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:04:22,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:22,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:04:22,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:04:22,987 INFO L87 Difference]: Start difference. First operand has 2666 states, 1881 states have (on average 1.3779904306220097) internal successors, (2592), 1916 states have internal predecessors, (2592), 651 states have call successors, (651), 133 states have call predecessors, (651), 132 states have return successors, (636), 635 states have call predecessors, (636), 636 states have call successors, (636) 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, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-16 12:04:25,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:04:27,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:04:29,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:04:33,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:04:35,720 WARN L539 Checker$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 12:04:37,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:04:39,749 WARN L539 Checker$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 12:04:42,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:04:49,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:04:58,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:05:06,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:05:14,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:05:16,022 WARN L539 Checker$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 12:05:18,028 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 12:05:20,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:05:20,006 INFO L93 Difference]: Finished difference Result 5634 states and 8534 transitions. [2022-11-16 12:05:20,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:05:20,009 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, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 98 [2022-11-16 12:05:20,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:05:20,074 INFO L225 Difference]: With dead ends: 5634 [2022-11-16 12:05:20,075 INFO L226 Difference]: Without dead ends: 2951 [2022-11-16 12:05:20,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:05:20,105 INFO L413 NwaCegarLoop]: 3428 mSDtfsCounter, 1110 mSDsluCounter, 5945 mSDsCounter, 0 mSdLazyCounter, 2993 mSolverCounterSat, 1538 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1180 SdHoareTripleChecker+Valid, 9373 SdHoareTripleChecker+Invalid, 4544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1538 IncrementalHoareTripleChecker+Valid, 2993 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:05:20,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1180 Valid, 9373 Invalid, 4544 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1538 Valid, 2993 Invalid, 13 Unknown, 0 Unchecked, 56.3s Time] [2022-11-16 12:05:20,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2022-11-16 12:05:20,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2644. [2022-11-16 12:05:20,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2644 states, 1876 states have (on average 1.3688699360341152) internal successors, (2568), 1894 states have internal predecessors, (2568), 636 states have call successors, (636), 132 states have call predecessors, (636), 131 states have return successors, (626), 625 states have call predecessors, (626), 626 states have call successors, (626) [2022-11-16 12:05:20,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2644 states to 2644 states and 3830 transitions. [2022-11-16 12:05:20,431 INFO L78 Accepts]: Start accepts. Automaton has 2644 states and 3830 transitions. Word has length 98 [2022-11-16 12:05:20,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:05:20,432 INFO L495 AbstractCegarLoop]: Abstraction has 2644 states and 3830 transitions. [2022-11-16 12:05:20,432 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, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-16 12:05:20,432 INFO L276 IsEmpty]: Start isEmpty. Operand 2644 states and 3830 transitions. [2022-11-16 12:05:20,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-16 12:05:20,444 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:05:20,445 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:05:20,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:05:20,446 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:05:20,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:05:20,447 INFO L85 PathProgramCache]: Analyzing trace with hash -740885246, now seen corresponding path program 1 times [2022-11-16 12:05:20,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:05:20,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837253392] [2022-11-16 12:05:20,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:05:20,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:05:20,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:21,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:05:21,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:21,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:05:21,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:21,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:05:21,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:21,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:05:21,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:21,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:05:21,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:21,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:05:21,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:21,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:05:21,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:21,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:05:21,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:21,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:05:21,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:21,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:05:21,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:22,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:05:22,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:22,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 12:05:22,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:22,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:05:22,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:05:22,093 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-16 12:05:22,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:05:22,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837253392] [2022-11-16 12:05:22,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837253392] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:05:22,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:05:22,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:05:22,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127814018] [2022-11-16 12:05:22,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:05:22,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:05:22,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:05:22,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:05:22,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:05:22,097 INFO L87 Difference]: Start difference. First operand 2644 states and 3830 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, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-16 12:05:24,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:05:26,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:05:31,120 WARN L539 Checker$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 12:05:33,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:05:40,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:05:48,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:05:55,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:06:13,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:06:16,986 WARN L539 Checker$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 12:06:17,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:06:17,659 INFO L93 Difference]: Finished difference Result 8365 states and 12243 transitions. [2022-11-16 12:06:17,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:06:17,660 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, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 98 [2022-11-16 12:06:17,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:06:17,701 INFO L225 Difference]: With dead ends: 8365 [2022-11-16 12:06:17,701 INFO L226 Difference]: Without dead ends: 5736 [2022-11-16 12:06:17,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:06:17,718 INFO L413 NwaCegarLoop]: 3902 mSDtfsCounter, 5999 mSDsluCounter, 7421 mSDsCounter, 0 mSdLazyCounter, 4095 mSolverCounterSat, 3486 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6425 SdHoareTripleChecker+Valid, 11323 SdHoareTripleChecker+Invalid, 7590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3486 IncrementalHoareTripleChecker+Valid, 4095 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:06:17,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6425 Valid, 11323 Invalid, 7590 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3486 Valid, 4095 Invalid, 9 Unknown, 0 Unchecked, 54.6s Time] [2022-11-16 12:06:17,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5736 states. [2022-11-16 12:06:17,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5736 to 5136. [2022-11-16 12:06:17,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5136 states, 3656 states have (on average 1.3725382932166301) internal successors, (5018), 3683 states have internal predecessors, (5018), 1219 states have call successors, (1219), 258 states have call predecessors, (1219), 260 states have return successors, (1223), 1208 states have call predecessors, (1223), 1209 states have call successors, (1223) [2022-11-16 12:06:18,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5136 states to 5136 states and 7460 transitions. [2022-11-16 12:06:18,010 INFO L78 Accepts]: Start accepts. Automaton has 5136 states and 7460 transitions. Word has length 98 [2022-11-16 12:06:18,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:06:18,011 INFO L495 AbstractCegarLoop]: Abstraction has 5136 states and 7460 transitions. [2022-11-16 12:06:18,011 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, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-16 12:06:18,011 INFO L276 IsEmpty]: Start isEmpty. Operand 5136 states and 7460 transitions. [2022-11-16 12:06:18,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-16 12:06:18,017 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:06:18,018 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:06:18,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:06:18,018 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:06:18,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:06:18,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1807844619, now seen corresponding path program 1 times [2022-11-16 12:06:18,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:06:18,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403249217] [2022-11-16 12:06:18,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:06:18,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:06:18,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:06:18,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:06:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:06:18,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:06:18,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:06:18,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:06:18,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:06:18,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:06:18,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:06:18,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:06:18,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:06:18,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:06:18,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:06:18,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:06:18,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:06:19,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:06:19,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:06:19,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:06:19,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:06:19,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:06:19,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:06:19,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:06:19,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:06:19,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 12:06:19,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:06:19,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:06:19,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:06:19,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-16 12:06:19,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:06:19,239 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-16 12:06:19,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:06:19,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403249217] [2022-11-16 12:06:19,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403249217] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:06:19,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:06:19,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:06:19,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113920237] [2022-11-16 12:06:19,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:06:19,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:06:19,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:06:19,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:06:19,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:06:19,245 INFO L87 Difference]: Start difference. First operand 5136 states and 7460 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 12:06:21,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:06:23,426 WARN L539 Checker$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 12:06:27,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:06:29,788 WARN L539 Checker$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 12:06:36,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:06:44,402 WARN L539 Checker$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 12:06:51,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:07:08,104 WARN L539 Checker$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 12:07:10,119 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 12:07:12,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:07:12,428 INFO L93 Difference]: Finished difference Result 16362 states and 23991 transitions. [2022-11-16 12:07:12,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:07:12,429 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 103 [2022-11-16 12:07:12,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:07:12,496 INFO L225 Difference]: With dead ends: 16362 [2022-11-16 12:07:12,497 INFO L226 Difference]: Without dead ends: 11241 [2022-11-16 12:07:12,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:07:12,521 INFO L413 NwaCegarLoop]: 3907 mSDtfsCounter, 5995 mSDsluCounter, 7449 mSDsCounter, 0 mSdLazyCounter, 4068 mSolverCounterSat, 3492 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6421 SdHoareTripleChecker+Valid, 11356 SdHoareTripleChecker+Invalid, 7569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3492 IncrementalHoareTripleChecker+Valid, 4068 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:07:12,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6421 Valid, 11356 Invalid, 7569 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3492 Valid, 4068 Invalid, 9 Unknown, 0 Unchecked, 52.3s Time] [2022-11-16 12:07:12,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11241 states. [2022-11-16 12:07:12,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11241 to 10030. [2022-11-16 12:07:13,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10030 states, 7145 states have (on average 1.3762071378586425) internal successors, (9833), 7185 states have internal predecessors, (9833), 2376 states have call successors, (2376), 506 states have call predecessors, (2376), 508 states have return successors, (2394), 2364 states have call predecessors, (2394), 2366 states have call successors, (2394) [2022-11-16 12:07:13,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10030 states to 10030 states and 14603 transitions. [2022-11-16 12:07:13,072 INFO L78 Accepts]: Start accepts. Automaton has 10030 states and 14603 transitions. Word has length 103 [2022-11-16 12:07:13,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:07:13,073 INFO L495 AbstractCegarLoop]: Abstraction has 10030 states and 14603 transitions. [2022-11-16 12:07:13,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-16 12:07:13,074 INFO L276 IsEmpty]: Start isEmpty. Operand 10030 states and 14603 transitions. [2022-11-16 12:07:13,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-16 12:07:13,082 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:07:13,082 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:07:13,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:07:13,084 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:07:13,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:07:13,085 INFO L85 PathProgramCache]: Analyzing trace with hash 790167574, now seen corresponding path program 1 times [2022-11-16 12:07:13,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:07:13,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564681440] [2022-11-16 12:07:13,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:07:13,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:07:13,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:13,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:07:13,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:13,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:07:13,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:13,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:07:13,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:13,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:07:13,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:13,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:07:13,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:13,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:07:13,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:14,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:07:14,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:14,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:07:14,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:14,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:07:14,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:14,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:07:14,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:14,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:07:14,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:14,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 12:07:14,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:14,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:07:14,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:14,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-16 12:07:14,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:14,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:07:14,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:14,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-16 12:07:14,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:14,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:07:14,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:14,347 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-11-16 12:07:14,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:07:14,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564681440] [2022-11-16 12:07:14,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564681440] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:07:14,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:07:14,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:07:14,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719118196] [2022-11-16 12:07:14,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:07:14,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:07:14,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:07:14,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:07:14,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:07:14,350 INFO L87 Difference]: Start difference. First operand 10030 states and 14603 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-16 12:07:16,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:07:18,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:07:22,440 WARN L539 Checker$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 12:07:24,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:07:31,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:07:39,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:07:41,336 WARN L539 Checker$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 12:07:42,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:07:48,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:08:01,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:08:10,178 WARN L539 Checker$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 12:08:12,185 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 12:08:15,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:08:15,057 INFO L93 Difference]: Finished difference Result 32251 states and 47307 transitions. [2022-11-16 12:08:15,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:08:15,058 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 113 [2022-11-16 12:08:15,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:08:15,178 INFO L225 Difference]: With dead ends: 32251 [2022-11-16 12:08:15,178 INFO L226 Difference]: Without dead ends: 22236 [2022-11-16 12:08:15,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:08:15,226 INFO L413 NwaCegarLoop]: 3933 mSDtfsCounter, 6055 mSDsluCounter, 7478 mSDsCounter, 0 mSdLazyCounter, 4089 mSolverCounterSat, 3527 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6487 SdHoareTripleChecker+Valid, 11411 SdHoareTripleChecker+Invalid, 7626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3527 IncrementalHoareTripleChecker+Valid, 4089 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:08:15,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6487 Valid, 11411 Invalid, 7626 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3527 Valid, 4089 Invalid, 10 Unknown, 0 Unchecked, 59.4s Time] [2022-11-16 12:08:15,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22236 states. [2022-11-16 12:08:16,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22236 to 19837. [2022-11-16 12:08:16,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19837 states, 14140 states have (on average 1.3765912305516266) internal successors, (19465), 14208 states have internal predecessors, (19465), 4685 states have call successors, (4685), 1008 states have call predecessors, (4685), 1011 states have return successors, (4731), 4670 states have call predecessors, (4731), 4675 states have call successors, (4731) [2022-11-16 12:08:16,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19837 states to 19837 states and 28881 transitions. [2022-11-16 12:08:16,283 INFO L78 Accepts]: Start accepts. Automaton has 19837 states and 28881 transitions. Word has length 113 [2022-11-16 12:08:16,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:08:16,284 INFO L495 AbstractCegarLoop]: Abstraction has 19837 states and 28881 transitions. [2022-11-16 12:08:16,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-16 12:08:16,284 INFO L276 IsEmpty]: Start isEmpty. Operand 19837 states and 28881 transitions. [2022-11-16 12:08:16,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-16 12:08:16,286 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:08:16,287 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:08:16,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:08:16,287 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:08:16,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:08:16,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1491544919, now seen corresponding path program 1 times [2022-11-16 12:08:16,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:08:16,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667948547] [2022-11-16 12:08:16,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:08:16,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:08:16,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:17,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:08:17,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:17,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:08:17,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:17,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:08:17,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:17,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:08:17,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:17,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:08:17,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:17,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:08:17,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:17,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:08:17,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:17,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:08:17,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:17,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:08:17,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:17,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:08:17,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:17,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:08:17,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:17,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 12:08:17,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:17,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:08:17,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:17,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-16 12:08:17,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:17,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:08:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:17,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:08:17,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:17,605 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-16 12:08:17,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:08:17,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667948547] [2022-11-16 12:08:17,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667948547] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:08:17,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:08:17,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:08:17,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996666413] [2022-11-16 12:08:17,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:08:17,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:08:17,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:08:17,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:08:17,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:08:17,609 INFO L87 Difference]: Start difference. First operand 19837 states and 28881 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-16 12:08:19,751 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 12:08:21,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:08:25,988 WARN L539 Checker$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 12:08:28,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:08:41,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:08:54,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:09:09,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:09:18,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:09:20,947 WARN L539 Checker$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 12:09:23,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:09:23,887 INFO L93 Difference]: Finished difference Result 62138 states and 91265 transitions. [2022-11-16 12:09:23,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:09:23,888 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 113 [2022-11-16 12:09:23,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:09:24,108 INFO L225 Difference]: With dead ends: 62138 [2022-11-16 12:09:24,109 INFO L226 Difference]: Without dead ends: 42316 [2022-11-16 12:09:24,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:09:24,194 INFO L413 NwaCegarLoop]: 4019 mSDtfsCounter, 5971 mSDsluCounter, 9972 mSDsCounter, 0 mSdLazyCounter, 5454 mSolverCounterSat, 4396 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6395 SdHoareTripleChecker+Valid, 13991 SdHoareTripleChecker+Invalid, 9859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4396 IncrementalHoareTripleChecker+Valid, 5454 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 64.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:09:24,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6395 Valid, 13991 Invalid, 9859 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4396 Valid, 5454 Invalid, 9 Unknown, 0 Unchecked, 64.5s Time] [2022-11-16 12:09:24,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42316 states. [2022-11-16 12:09:26,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42316 to 36745. [2022-11-16 12:09:26,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36745 states, 26260 states have (on average 1.3840441736481341) internal successors, (36345), 26352 states have internal predecessors, (36345), 8605 states have call successors, (8605), 1876 states have call predecessors, (8605), 1879 states have return successors, (8683), 8590 states have call predecessors, (8683), 8595 states have call successors, (8683) [2022-11-16 12:09:26,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36745 states to 36745 states and 53633 transitions. [2022-11-16 12:09:26,416 INFO L78 Accepts]: Start accepts. Automaton has 36745 states and 53633 transitions. Word has length 113 [2022-11-16 12:09:26,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:09:26,417 INFO L495 AbstractCegarLoop]: Abstraction has 36745 states and 53633 transitions. [2022-11-16 12:09:26,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-16 12:09:26,418 INFO L276 IsEmpty]: Start isEmpty. Operand 36745 states and 53633 transitions. [2022-11-16 12:09:26,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-16 12:09:26,420 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:09:26,420 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:09:26,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:09:26,421 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:09:26,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:26,421 INFO L85 PathProgramCache]: Analyzing trace with hash -275815875, now seen corresponding path program 1 times [2022-11-16 12:09:26,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:26,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63046847] [2022-11-16 12:09:26,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:26,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:26,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:27,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:09:27,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:27,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:09:27,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:27,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:09:27,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:27,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:09:27,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:27,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:09:27,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:27,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:09:27,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:27,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:09:27,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:27,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:09:27,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:27,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:09:27,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:27,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:09:27,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:27,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:09:27,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:27,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 12:09:27,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:27,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:09:27,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:27,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-16 12:09:27,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:27,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:09:27,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:27,815 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-16 12:09:27,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:09:27,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63046847] [2022-11-16 12:09:27,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63046847] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:09:27,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:09:27,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:09:27,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318356724] [2022-11-16 12:09:27,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:09:27,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:09:27,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:09:27,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:09:27,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:09:27,818 INFO L87 Difference]: Start difference. First operand 36745 states and 53633 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-16 12:09:29,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:09:33,548 WARN L539 Checker$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 12:09:36,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:09:41,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:09:47,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:09:53,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:09:59,147 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 12:10:00,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:10:00,204 INFO L93 Difference]: Finished difference Result 78330 states and 115162 transitions. [2022-11-16 12:10:00,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:10:00,205 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 117 [2022-11-16 12:10:00,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:10:00,419 INFO L225 Difference]: With dead ends: 78330 [2022-11-16 12:10:00,420 INFO L226 Difference]: Without dead ends: 41600 [2022-11-16 12:10:00,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:10:00,683 INFO L413 NwaCegarLoop]: 3356 mSDtfsCounter, 5325 mSDsluCounter, 2324 mSDsCounter, 0 mSdLazyCounter, 1651 mSolverCounterSat, 2817 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5698 SdHoareTripleChecker+Valid, 5680 SdHoareTripleChecker+Invalid, 4475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2817 IncrementalHoareTripleChecker+Valid, 1651 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:10:00,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5698 Valid, 5680 Invalid, 4475 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2817 Valid, 1651 Invalid, 7 Unknown, 0 Unchecked, 30.3s Time] [2022-11-16 12:10:00,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41600 states. [2022-11-16 12:10:02,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41600 to 37026. [2022-11-16 12:10:02,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37026 states, 26464 states have (on average 1.375793530834341) internal successors, (36409), 26554 states have internal predecessors, (36409), 8649 states have call successors, (8649), 1909 states have call predecessors, (8649), 1912 states have return successors, (8727), 8636 states have call predecessors, (8727), 8639 states have call successors, (8727) [2022-11-16 12:10:02,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37026 states to 37026 states and 53785 transitions. [2022-11-16 12:10:02,510 INFO L78 Accepts]: Start accepts. Automaton has 37026 states and 53785 transitions. Word has length 117 [2022-11-16 12:10:02,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:10:02,511 INFO L495 AbstractCegarLoop]: Abstraction has 37026 states and 53785 transitions. [2022-11-16 12:10:02,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-16 12:10:02,511 INFO L276 IsEmpty]: Start isEmpty. Operand 37026 states and 53785 transitions. [2022-11-16 12:10:02,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-16 12:10:02,513 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:10:02,513 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:10:02,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:10:02,514 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:10:02,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:02,514 INFO L85 PathProgramCache]: Analyzing trace with hash -313715524, now seen corresponding path program 1 times [2022-11-16 12:10:02,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:02,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45636344] [2022-11-16 12:10:02,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:02,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:02,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:04,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:10:04,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:04,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:10:04,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:04,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:10:04,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:04,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:10:04,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:04,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:10:04,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:04,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:10:04,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:04,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:10:04,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:04,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:10:04,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:04,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:10:04,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:04,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:10:04,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:04,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:10:04,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:05,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 12:10:05,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:05,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:10:05,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:05,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-16 12:10:05,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:05,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:10:05,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:05,101 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-16 12:10:05,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:05,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45636344] [2022-11-16 12:10:05,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45636344] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:10:05,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:10:05,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:10:05,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274898731] [2022-11-16 12:10:05,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:10:05,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:10:05,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:10:05,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:10:05,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:10:05,104 INFO L87 Difference]: Start difference. First operand 37026 states and 53785 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-16 12:10:07,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:10:10,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:10:13,275 WARN L539 Checker$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 12:10:19,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:10:25,572 WARN L539 Checker$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 12:10:32,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:10:38,693 WARN L539 Checker$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 12:10:39,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:10:39,707 INFO L93 Difference]: Finished difference Result 83105 states and 120672 transitions. [2022-11-16 12:10:39,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:10:39,708 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 116 [2022-11-16 12:10:39,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:10:39,887 INFO L225 Difference]: With dead ends: 83105 [2022-11-16 12:10:39,888 INFO L226 Difference]: Without dead ends: 46094 [2022-11-16 12:10:40,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:10:40,003 INFO L413 NwaCegarLoop]: 3413 mSDtfsCounter, 4974 mSDsluCounter, 2974 mSDsCounter, 0 mSdLazyCounter, 1858 mSolverCounterSat, 2895 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5245 SdHoareTripleChecker+Valid, 6387 SdHoareTripleChecker+Invalid, 4760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2895 IncrementalHoareTripleChecker+Valid, 1858 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:10:40,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5245 Valid, 6387 Invalid, 4760 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2895 Valid, 1858 Invalid, 7 Unknown, 0 Unchecked, 32.4s Time] [2022-11-16 12:10:40,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46094 states. [2022-11-16 12:10:41,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46094 to 40477. [2022-11-16 12:10:41,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40477 states, 28955 states have (on average 1.3716111207045416) internal successors, (39715), 29043 states have internal predecessors, (39715), 9201 states have call successors, (9201), 2318 states have call predecessors, (9201), 2320 states have return successors, (9295), 9189 states have call predecessors, (9295), 9191 states have call successors, (9295) [2022-11-16 12:10:42,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40477 states to 40477 states and 58211 transitions. [2022-11-16 12:10:42,016 INFO L78 Accepts]: Start accepts. Automaton has 40477 states and 58211 transitions. Word has length 116 [2022-11-16 12:10:42,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:10:42,016 INFO L495 AbstractCegarLoop]: Abstraction has 40477 states and 58211 transitions. [2022-11-16 12:10:42,017 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, (15), 6 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-16 12:10:42,017 INFO L276 IsEmpty]: Start isEmpty. Operand 40477 states and 58211 transitions. [2022-11-16 12:10:42,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-16 12:10:42,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:10:42,023 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:10:42,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:10:42,024 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:10:42,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:42,025 INFO L85 PathProgramCache]: Analyzing trace with hash 979467301, now seen corresponding path program 1 times [2022-11-16 12:10:42,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:42,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951661663] [2022-11-16 12:10:42,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:42,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:42,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:42,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:10:42,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:42,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:10:42,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:43,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:10:43,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:43,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:10:43,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:43,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:10:43,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:43,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:10:43,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:43,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:10:43,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:43,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:10:43,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:43,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:10:43,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:43,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:10:43,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:43,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:10:43,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:43,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 12:10:43,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:43,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:10:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:43,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-16 12:10:43,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:43,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-16 12:10:43,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:43,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:10:43,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:43,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:10:43,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:43,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:10:43,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:43,752 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-11-16 12:10:43,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:43,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951661663] [2022-11-16 12:10:43,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951661663] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:10:43,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:10:43,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:10:43,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85973287] [2022-11-16 12:10:43,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:10:43,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:10:43,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:10:43,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:10:43,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:10:43,755 INFO L87 Difference]: Start difference. First operand 40477 states and 58211 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-16 12:10:45,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:10:47,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:10:52,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:10:54,752 WARN L539 Checker$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 12:11:02,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:11:04,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:11:09,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:11:18,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:11:26,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:11:28,515 WARN L539 Checker$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 12:11:29,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:11:29,867 INFO L93 Difference]: Finished difference Result 46021 states and 66624 transitions. [2022-11-16 12:11:29,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:11:29,868 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 127 [2022-11-16 12:11:29,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:11:30,034 INFO L225 Difference]: With dead ends: 46021 [2022-11-16 12:11:30,034 INFO L226 Difference]: Without dead ends: 46018 [2022-11-16 12:11:30,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:11:30,053 INFO L413 NwaCegarLoop]: 3186 mSDtfsCounter, 5348 mSDsluCounter, 4175 mSDsCounter, 0 mSdLazyCounter, 2563 mSolverCounterSat, 2786 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5719 SdHoareTripleChecker+Valid, 7361 SdHoareTripleChecker+Invalid, 5358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2786 IncrementalHoareTripleChecker+Valid, 2563 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:11:30,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5719 Valid, 7361 Invalid, 5358 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2786 Valid, 2563 Invalid, 9 Unknown, 0 Unchecked, 43.8s Time] [2022-11-16 12:11:30,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46018 states. [2022-11-16 12:11:32,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46018 to 40476. [2022-11-16 12:11:32,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40476 states, 28955 states have (on average 1.3715765843550336) internal successors, (39714), 29042 states have internal predecessors, (39714), 9200 states have call successors, (9200), 2318 states have call predecessors, (9200), 2320 states have return successors, (9295), 9189 states have call predecessors, (9295), 9191 states have call successors, (9295) [2022-11-16 12:11:32,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40476 states to 40476 states and 58209 transitions. [2022-11-16 12:11:32,350 INFO L78 Accepts]: Start accepts. Automaton has 40476 states and 58209 transitions. Word has length 127 [2022-11-16 12:11:32,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:11:32,350 INFO L495 AbstractCegarLoop]: Abstraction has 40476 states and 58209 transitions. [2022-11-16 12:11:32,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-16 12:11:32,351 INFO L276 IsEmpty]: Start isEmpty. Operand 40476 states and 58209 transitions. [2022-11-16 12:11:32,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-16 12:11:32,354 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:11:32,355 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:11:32,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:11:32,355 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:11:32,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:11:32,356 INFO L85 PathProgramCache]: Analyzing trace with hash 297745483, now seen corresponding path program 1 times [2022-11-16 12:11:32,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:11:32,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960865558] [2022-11-16 12:11:32,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:11:32,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:11:32,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:33,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:11:33,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:33,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:11:33,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:33,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:11:33,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:33,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:11:33,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:33,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:11:33,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:33,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:11:33,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:33,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:11:33,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:33,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:11:33,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:33,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:11:33,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:33,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-16 12:11:33,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:33,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:11:33,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:33,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 12:11:33,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:33,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:11:33,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:33,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-16 12:11:33,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:33,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-16 12:11:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:33,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:11:33,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:33,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:11:33,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:33,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:11:33,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:33,789 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-11-16 12:11:33,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:11:33,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960865558] [2022-11-16 12:11:33,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960865558] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:11:33,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:11:33,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:11:33,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200435911] [2022-11-16 12:11:33,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:11:33,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:11:33,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:11:33,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:11:33,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:11:33,792 INFO L87 Difference]: Start difference. First operand 40476 states and 58209 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-16 12:11:35,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:11:39,999 WARN L539 Checker$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 12:11:42,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:11:49,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:11:54,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:12:01,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:12:07,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:12:08,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:12:08,675 INFO L93 Difference]: Finished difference Result 46020 states and 66622 transitions. [2022-11-16 12:12:08,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:12:08,676 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 128 [2022-11-16 12:12:08,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:12:08,849 INFO L225 Difference]: With dead ends: 46020 [2022-11-16 12:12:08,849 INFO L226 Difference]: Without dead ends: 46017 [2022-11-16 12:12:08,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:12:08,873 INFO L413 NwaCegarLoop]: 3184 mSDtfsCounter, 5781 mSDsluCounter, 2353 mSDsCounter, 0 mSdLazyCounter, 1768 mSolverCounterSat, 3539 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6153 SdHoareTripleChecker+Valid, 5537 SdHoareTripleChecker+Invalid, 5314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3539 IncrementalHoareTripleChecker+Valid, 1768 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:12:08,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6153 Valid, 5537 Invalid, 5314 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3539 Valid, 1768 Invalid, 7 Unknown, 0 Unchecked, 32.3s Time] [2022-11-16 12:12:08,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46017 states. [2022-11-16 12:12:11,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46017 to 40475. [2022-11-16 12:12:11,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40475 states, 28955 states have (on average 1.3715420480055258) internal successors, (39713), 29041 states have internal predecessors, (39713), 9199 states have call successors, (9199), 2318 states have call predecessors, (9199), 2320 states have return successors, (9295), 9189 states have call predecessors, (9295), 9191 states have call successors, (9295) [2022-11-16 12:12:11,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40475 states to 40475 states and 58207 transitions. [2022-11-16 12:12:11,254 INFO L78 Accepts]: Start accepts. Automaton has 40475 states and 58207 transitions. Word has length 128 [2022-11-16 12:12:11,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:12:11,255 INFO L495 AbstractCegarLoop]: Abstraction has 40475 states and 58207 transitions. [2022-11-16 12:12:11,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-16 12:12:11,255 INFO L276 IsEmpty]: Start isEmpty. Operand 40475 states and 58207 transitions. [2022-11-16 12:12:11,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-11-16 12:12:11,259 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:12:11,259 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:12:11,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:12:11,259 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:12:11,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:12:11,260 INFO L85 PathProgramCache]: Analyzing trace with hash 639210472, now seen corresponding path program 1 times [2022-11-16 12:12:11,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:12:11,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834272680] [2022-11-16 12:12:11,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:12:11,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:12:11,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat