./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 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8157c033-b4ab-4996-9a24-117a2a653e77/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8157c033-b4ab-4996-9a24-117a2a653e77/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8157c033-b4ab-4996-9a24-117a2a653e77/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8157c033-b4ab-4996-9a24-117a2a653e77/bin/uautomizer-DrprNOufMa/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_8157c033-b4ab-4996-9a24-117a2a653e77/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8157c033-b4ab-4996-9a24-117a2a653e77/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b1d9346b63752b34e66e21333a7236034d1604ec5ec14f79593d3da0c163d1d9 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 19:16:16,446 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 19:16:16,447 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 19:16:16,469 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 19:16:16,470 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 19:16:16,471 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 19:16:16,472 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 19:16:16,474 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 19:16:16,475 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 19:16:16,476 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 19:16:16,477 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 19:16:16,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 19:16:16,478 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 19:16:16,479 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 19:16:16,480 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 19:16:16,481 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 19:16:16,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 19:16:16,483 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 19:16:16,484 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 19:16:16,486 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 19:16:16,487 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 19:16:16,489 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 19:16:16,490 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 19:16:16,490 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 19:16:16,493 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 19:16:16,493 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 19:16:16,493 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 19:16:16,494 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 19:16:16,495 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 19:16:16,495 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 19:16:16,496 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 19:16:16,496 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 19:16:16,497 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 19:16:16,498 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 19:16:16,499 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 19:16:16,499 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 19:16:16,499 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 19:16:16,500 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 19:16:16,500 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 19:16:16,500 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 19:16:16,501 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 19:16:16,501 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8157c033-b4ab-4996-9a24-117a2a653e77/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-06 19:16:16,518 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 19:16:16,518 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 19:16:16,518 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 19:16:16,518 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 19:16:16,519 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 19:16:16,519 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 19:16:16,519 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 19:16:16,519 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 19:16:16,520 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 19:16:16,520 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 19:16:16,520 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 19:16:16,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 19:16:16,520 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 19:16:16,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 19:16:16,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 19:16:16,520 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 19:16:16,521 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 19:16:16,521 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 19:16:16,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 19:16:16,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 19:16:16,521 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 19:16:16,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:16:16,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 19:16:16,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 19:16:16,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 19:16:16,522 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 19:16:16,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 19:16:16,522 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 19:16:16,522 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 19:16:16,522 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 19:16:16,522 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 19:16:16,523 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_8157c033-b4ab-4996-9a24-117a2a653e77/bin/uautomizer-DrprNOufMa/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8157c033-b4ab-4996-9a24-117a2a653e77/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1d9346b63752b34e66e21333a7236034d1604ec5ec14f79593d3da0c163d1d9 [2021-12-06 19:16:16,706 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 19:16:16,721 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 19:16:16,722 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 19:16:16,723 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 19:16:16,724 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 19:16:16,725 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8157c033-b4ab-4996-9a24-117a2a653e77/bin/uautomizer-DrprNOufMa/../../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 [2021-12-06 19:16:16,767 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8157c033-b4ab-4996-9a24-117a2a653e77/bin/uautomizer-DrprNOufMa/data/99107c01b/a1d281ae08cc45a69b557c8d28d8a234/FLAGc25ae6b0b [2021-12-06 19:16:17,420 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 19:16:17,420 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8157c033-b4ab-4996-9a24-117a2a653e77/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 [2021-12-06 19:16:17,456 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8157c033-b4ab-4996-9a24-117a2a653e77/bin/uautomizer-DrprNOufMa/data/99107c01b/a1d281ae08cc45a69b557c8d28d8a234/FLAGc25ae6b0b [2021-12-06 19:16:17,820 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8157c033-b4ab-4996-9a24-117a2a653e77/bin/uautomizer-DrprNOufMa/data/99107c01b/a1d281ae08cc45a69b557c8d28d8a234 [2021-12-06 19:16:17,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 19:16:17,831 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 19:16:17,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 19:16:17,837 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 19:16:17,846 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 19:16:17,848 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:16:17" (1/1) ... [2021-12-06 19:16:17,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31bc8e57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:16:17, skipping insertion in model container [2021-12-06 19:16:17,852 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:16:17" (1/1) ... [2021-12-06 19:16:17,871 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 19:16:17,999 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 19:16:20,475 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8157c033-b4ab-4996-9a24-117a2a653e77/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] [2021-12-06 19:16:20,746 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:16:20,797 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 19:16:21,141 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8157c033-b4ab-4996-9a24-117a2a653e77/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] [2021-12-06 19:16:21,157 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:16:21,288 INFO L208 MainTranslator]: Completed translation [2021-12-06 19:16:21,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:16:21 WrapperNode [2021-12-06 19:16:21,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 19:16:21,290 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 19:16:21,290 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 19:16:21,290 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 19:16:21,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:16:21" (1/1) ... [2021-12-06 19:16:21,389 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:16:21" (1/1) ... [2021-12-06 19:16:21,734 INFO L137 Inliner]: procedures = 549, calls = 5005, calls flagged for inlining = 246, calls inlined = 225, statements flattened = 9875 [2021-12-06 19:16:21,735 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 19:16:21,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 19:16:21,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 19:16:21,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 19:16:21,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:16:21" (1/1) ... [2021-12-06 19:16:21,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:16:21" (1/1) ... [2021-12-06 19:16:21,878 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:16:21" (1/1) ... [2021-12-06 19:16:21,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:16:21" (1/1) ... [2021-12-06 19:16:22,252 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:16:21" (1/1) ... [2021-12-06 19:16:22,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:16:21" (1/1) ... [2021-12-06 19:16:22,315 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:16:21" (1/1) ... [2021-12-06 19:16:22,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 19:16:22,364 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 19:16:22,364 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 19:16:22,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 19:16:22,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:16:21" (1/1) ... [2021-12-06 19:16:22,371 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:16:22,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8157c033-b4ab-4996-9a24-117a2a653e77/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:16:22,389 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8157c033-b4ab-4996-9a24-117a2a653e77/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 19:16:22,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8157c033-b4ab-4996-9a24-117a2a653e77/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 19:16:22,419 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-06 19:16:22,420 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-06 19:16:22,420 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_urb_cleanup [2021-12-06 19:16:22,420 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_urb_cleanup [2021-12-06 19:16:22,420 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-06 19:16:22,420 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-06 19:16:22,420 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-06 19:16:22,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-06 19:16:22,420 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-06 19:16:22,420 INFO L130 BoogieDeclarations]: Found specification of procedure pm_alsa_resume [2021-12-06 19:16:22,421 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_alsa_resume [2021-12-06 19:16:22,421 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2021-12-06 19:16:22,421 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2021-12-06 19:16:22,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-06 19:16:22,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-06 19:16:22,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_3 [2021-12-06 19:16:22,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_3 [2021-12-06 19:16:22,421 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2021-12-06 19:16:22,421 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2021-12-06 19:16:22,421 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_stop_streaming [2021-12-06 19:16:22,421 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_stop_streaming [2021-12-06 19:16:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure vdev_init [2021-12-06 19:16:22,422 INFO L138 BoogieDeclarations]: Found implementation of procedure vdev_init [2021-12-06 19:16:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure pd_vidioc_s_fmt [2021-12-06 19:16:22,422 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_vidioc_s_fmt [2021-12-06 19:16:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_check_mode_dvbt [2021-12-06 19:16:22,422 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_check_mode_dvbt [2021-12-06 19:16:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure set_frequency___0 [2021-12-06 19:16:22,422 INFO L138 BoogieDeclarations]: Found implementation of procedure set_frequency___0 [2021-12-06 19:16:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure set_tuner_mode [2021-12-06 19:16:22,422 INFO L138 BoogieDeclarations]: Found implementation of procedure set_tuner_mode [2021-12-06 19:16:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fm_close [2021-12-06 19:16:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fm_close [2021-12-06 19:16:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2021-12-06 19:16:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2021-12-06 19:16:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_capture_pointer [2021-12-06 19:16:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_capture_pointer [2021-12-06 19:16:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_to_vmalloc [2021-12-06 19:16:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_to_vmalloc [2021-12-06 19:16:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-06 19:16:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-06 19:16:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2021-12-06 19:16:22,424 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2021-12-06 19:16:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 19:16:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_capture_trigger [2021-12-06 19:16:22,424 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_capture_trigger [2021-12-06 19:16:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_check_mode_radio [2021-12-06 19:16:22,424 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_check_mode_radio [2021-12-06 19:16:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_pcm_close [2021-12-06 19:16:22,424 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_pcm_close [2021-12-06 19:16:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-06 19:16:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure check_control_id [2021-12-06 19:16:22,425 INFO L138 BoogieDeclarations]: Found implementation of procedure check_control_id [2021-12-06 19:16:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-12-06 19:16:22,425 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-12-06 19:16:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2021-12-06 19:16:22,453 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2021-12-06 19:16:22,454 INFO L130 BoogieDeclarations]: Found specification of procedure pd_buf_queue [2021-12-06 19:16:22,454 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_buf_queue [2021-12-06 19:16:22,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-06 19:16:22,454 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2021-12-06 19:16:22,454 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2021-12-06 19:16:22,454 INFO L130 BoogieDeclarations]: Found specification of procedure set_frequency [2021-12-06 19:16:22,454 INFO L138 BoogieDeclarations]: Found implementation of procedure set_frequency [2021-12-06 19:16:22,454 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_mmap [2021-12-06 19:16:22,454 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_mmap [2021-12-06 19:16:22,455 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2021-12-06 19:16:22,455 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2021-12-06 19:16:22,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 19:16:22,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-06 19:16:22,455 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-06 19:16:22,455 INFO L130 BoogieDeclarations]: Found specification of procedure usb_transfer_stop [2021-12-06 19:16:22,455 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_transfer_stop [2021-12-06 19:16:22,455 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-06 19:16:22,455 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-06 19:16:22,455 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_frontend [2021-12-06 19:16:22,456 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_frontend [2021-12-06 19:16:22,456 INFO L130 BoogieDeclarations]: Found specification of procedure is_working [2021-12-06 19:16:22,456 INFO L138 BoogieDeclarations]: Found implementation of procedure is_working [2021-12-06 19:16:22,456 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-06 19:16:22,456 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-06 19:16:22,456 INFO L130 BoogieDeclarations]: Found specification of procedure pm_alsa_suspend [2021-12-06 19:16:22,456 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_alsa_suspend [2021-12-06 19:16:22,456 INFO L130 BoogieDeclarations]: Found specification of procedure fire_audio_urb [2021-12-06 19:16:22,456 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_audio_urb [2021-12-06 19:16:22,456 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-12-06 19:16:22,457 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-12-06 19:16:22,457 INFO L130 BoogieDeclarations]: Found specification of procedure start_video_stream [2021-12-06 19:16:22,457 INFO L138 BoogieDeclarations]: Found implementation of procedure start_video_stream [2021-12-06 19:16:22,457 INFO L130 BoogieDeclarations]: Found specification of procedure video_get_drvdata [2021-12-06 19:16:22,457 INFO L138 BoogieDeclarations]: Found implementation of procedure video_get_drvdata [2021-12-06 19:16:22,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-06 19:16:22,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-06 19:16:22,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 19:16:22,457 INFO L130 BoogieDeclarations]: Found specification of procedure get_audio_std [2021-12-06 19:16:22,458 INFO L138 BoogieDeclarations]: Found implementation of procedure get_audio_std [2021-12-06 19:16:22,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 19:16:22,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_poseidon [2021-12-06 19:16:22,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_poseidon [2021-12-06 19:16:22,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-06 19:16:22,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-06 19:16:22,458 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-06 19:16:22,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-06 19:16:22,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 19:16:22,458 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-06 19:16:22,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_poseidon [2021-12-06 19:16:22,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_poseidon [2021-12-06 19:16:22,459 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_capture_open [2021-12-06 19:16:22,459 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_capture_open [2021-12-06 19:16:22,459 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_signal_strength [2021-12-06 19:16:22,459 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_signal_strength [2021-12-06 19:16:22,459 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_release [2021-12-06 19:16:22,479 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_release [2021-12-06 19:16:22,480 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_open [2021-12-06 19:16:22,480 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_open [2021-12-06 19:16:22,480 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-06 19:16:22,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-06 19:16:22,480 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-12-06 19:16:22,480 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-12-06 19:16:22,480 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2021-12-06 19:16:22,480 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2021-12-06 19:16:22,480 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-06 19:16:22,480 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-06 19:16:22,481 INFO L130 BoogieDeclarations]: Found specification of procedure send_set_req [2021-12-06 19:16:22,481 INFO L138 BoogieDeclarations]: Found implementation of procedure send_set_req [2021-12-06 19:16:22,481 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-06 19:16:22,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-06 19:16:22,481 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_iolock [2021-12-06 19:16:22,481 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_iolock [2021-12-06 19:16:22,481 INFO L130 BoogieDeclarations]: Found specification of procedure init_copy [2021-12-06 19:16:22,481 INFO L138 BoogieDeclarations]: Found implementation of procedure init_copy [2021-12-06 19:16:22,482 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-12-06 19:16:22,482 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-12-06 19:16:22,482 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_bulk_urbs_generic [2021-12-06 19:16:22,482 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_bulk_urbs_generic [2021-12-06 19:16:22,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 19:16:22,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 19:16:22,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-12-06 19:16:22,483 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-12-06 19:16:22,483 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-06 19:16:22,483 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-06 19:16:22,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-06 19:16:22,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-06 19:16:22,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-06 19:16:22,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-06 19:16:22,483 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2021-12-06 19:16:22,483 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2021-12-06 19:16:22,483 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2021-12-06 19:16:22,483 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2021-12-06 19:16:22,483 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_pd_get_page [2021-12-06 19:16:22,483 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_pd_get_page [2021-12-06 19:16:22,483 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-06 19:16:22,483 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-06 19:16:22,484 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2021-12-06 19:16:22,484 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2021-12-06 19:16:22,484 INFO L130 BoogieDeclarations]: Found specification of procedure free_all_urb [2021-12-06 19:16:22,484 INFO L138 BoogieDeclarations]: Found implementation of procedure free_all_urb [2021-12-06 19:16:22,484 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release [2021-12-06 19:16:22,484 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release [2021-12-06 19:16:22,484 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_get_fe [2021-12-06 19:16:22,484 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_get_fe [2021-12-06 19:16:22,484 INFO L130 BoogieDeclarations]: Found specification of procedure pd_dvb_usb_device_cleanup [2021-12-06 19:16:22,484 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_dvb_usb_device_cleanup [2021-12-06 19:16:22,484 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_start_streaming [2021-12-06 19:16:22,484 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_start_streaming [2021-12-06 19:16:22,484 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-06 19:16:22,484 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-06 19:16:22,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-06 19:16:22,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-06 19:16:22,484 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_mmap_free [2021-12-06 19:16:22,485 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_mmap_free [2021-12-06 19:16:22,485 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-06 19:16:22,485 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-06 19:16:22,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-06 19:16:22,485 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-06 19:16:22,485 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_intf [2021-12-06 19:16:22,485 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_intf [2021-12-06 19:16:22,485 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-06 19:16:22,485 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-06 19:16:22,485 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-06 19:16:22,485 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-06 19:16:22,485 INFO L130 BoogieDeclarations]: Found specification of procedure pd_vidioc_s_tuner [2021-12-06 19:16:22,486 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_vidioc_s_tuner [2021-12-06 19:16:22,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 19:16:22,486 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-06 19:16:22,486 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-06 19:16:22,486 INFO L130 BoogieDeclarations]: Found specification of procedure set_std [2021-12-06 19:16:22,486 INFO L138 BoogieDeclarations]: Found implementation of procedure set_std [2021-12-06 19:16:22,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 19:16:22,486 INFO L130 BoogieDeclarations]: Found specification of procedure free_all_urb_generic [2021-12-06 19:16:22,486 INFO L138 BoogieDeclarations]: Found implementation of procedure free_all_urb_generic [2021-12-06 19:16:22,486 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_ts_bus_ctrl [2021-12-06 19:16:22,487 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_ts_bus_ctrl [2021-12-06 19:16:22,487 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_exit [2021-12-06 19:16:22,487 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_exit [2021-12-06 19:16:22,487 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fm_open [2021-12-06 19:16:22,487 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fm_open [2021-12-06 19:16:22,487 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2021-12-06 19:16:22,487 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2021-12-06 19:16:22,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 19:16:22,487 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-06 19:16:22,487 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-06 19:16:22,487 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_status [2021-12-06 19:16:22,487 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_status [2021-12-06 19:16:22,487 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_stop [2021-12-06 19:16:22,488 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_stop [2021-12-06 19:16:22,488 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-12-06 19:16:22,488 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-12-06 19:16:22,488 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fe_release [2021-12-06 19:16:22,488 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fe_release [2021-12-06 19:16:22,488 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-06 19:16:22,488 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-06 19:16:22,488 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-12-06 19:16:22,488 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-12-06 19:16:22,488 INFO L130 BoogieDeclarations]: Found specification of procedure get_pd [2021-12-06 19:16:22,489 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pd [2021-12-06 19:16:22,489 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_disconnect [2021-12-06 19:16:22,489 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_disconnect [2021-12-06 19:16:22,489 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_poll [2021-12-06 19:16:22,489 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_poll [2021-12-06 19:16:22,489 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-12-06 19:16:22,489 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-12-06 19:16:22,489 INFO L130 BoogieDeclarations]: Found specification of procedure send_get_req [2021-12-06 19:16:22,489 INFO L138 BoogieDeclarations]: Found implementation of procedure send_get_req [2021-12-06 19:16:22,489 INFO L130 BoogieDeclarations]: Found specification of procedure video_register_device [2021-12-06 19:16:22,489 INFO L138 BoogieDeclarations]: Found implementation of procedure video_register_device [2021-12-06 19:16:22,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2021-12-06 19:16:22,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2021-12-06 19:16:22,490 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_hw_capture_params [2021-12-06 19:16:22,490 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_hw_capture_params [2021-12-06 19:16:22,490 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-06 19:16:22,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-06 19:16:22,490 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_unc_blocks [2021-12-06 19:16:22,490 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_unc_blocks [2021-12-06 19:16:22,490 INFO L130 BoogieDeclarations]: Found specification of procedure audio_buf_free [2021-12-06 19:16:22,490 INFO L138 BoogieDeclarations]: Found implementation of procedure audio_buf_free [2021-12-06 19:16:22,490 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-06 19:16:22,490 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-06 19:16:22,490 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fe_get_tune_settings [2021-12-06 19:16:22,490 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fe_get_tune_settings [2021-12-06 19:16:22,490 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_set_fe [2021-12-06 19:16:22,490 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_set_fe [2021-12-06 19:16:22,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 19:16:22,491 INFO L130 BoogieDeclarations]: Found specification of procedure hibernation_resume [2021-12-06 19:16:22,491 INFO L138 BoogieDeclarations]: Found implementation of procedure hibernation_resume [2021-12-06 19:16:22,491 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_hw_capture_free [2021-12-06 19:16:22,491 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_hw_capture_free [2021-12-06 19:16:22,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-06 19:16:22,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-06 19:16:22,491 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_resume [2021-12-06 19:16:22,491 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_resume [2021-12-06 19:16:22,491 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_checkmode [2021-12-06 19:16:22,491 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_checkmode [2021-12-06 19:16:22,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-06 19:16:22,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-06 19:16:22,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_udev [2021-12-06 19:16:22,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_udev [2021-12-06 19:16:22,492 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_input [2021-12-06 19:16:22,492 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_input [2021-12-06 19:16:22,492 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_lib_ioctl [2021-12-06 19:16:22,492 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_lib_ioctl [2021-12-06 19:16:22,492 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2021-12-06 19:16:22,492 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2021-12-06 19:16:22,492 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_queue_vmalloc_init [2021-12-06 19:16:22,492 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_queue_vmalloc_init [2021-12-06 19:16:22,493 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-12-06 19:16:22,493 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-12-06 19:16:22,493 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_free [2021-12-06 19:16:22,493 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_free [2021-12-06 19:16:22,493 INFO L130 BoogieDeclarations]: Found specification of procedure get_autopm_ref [2021-12-06 19:16:22,493 INFO L138 BoogieDeclarations]: Found implementation of procedure get_autopm_ref [2021-12-06 19:16:22,493 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fe_sleep [2021-12-06 19:16:22,493 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fe_sleep [2021-12-06 19:16:22,493 INFO L130 BoogieDeclarations]: Found specification of procedure pd_buf_setup [2021-12-06 19:16:22,493 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_buf_setup [2021-12-06 19:16:22,494 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_video_device [2021-12-06 19:16:22,494 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_video_device [2021-12-06 19:16:22,494 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_ber [2021-12-06 19:16:22,494 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_ber [2021-12-06 19:16:22,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 19:16:22,494 INFO L130 BoogieDeclarations]: Found specification of procedure set_debug_mode [2021-12-06 19:16:22,494 INFO L138 BoogieDeclarations]: Found implementation of procedure set_debug_mode [2021-12-06 19:16:22,494 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_prepare [2021-12-06 19:16:22,494 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_prepare [2021-12-06 19:16:23,202 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 19:16:23,206 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 19:16:30,840 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-06 19:21:28,588 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 19:21:28,605 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 19:21:28,605 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 19:21:28,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:21:28 BoogieIcfgContainer [2021-12-06 19:21:28,609 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 19:21:28,610 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 19:21:28,611 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 19:21:28,613 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 19:21:28,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 07:16:17" (1/3) ... [2021-12-06 19:21:28,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc0ccc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:21:28, skipping insertion in model container [2021-12-06 19:21:28,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:16:21" (2/3) ... [2021-12-06 19:21:28,614 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc0ccc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:21:28, skipping insertion in model container [2021-12-06 19:21:28,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:21:28" (3/3) ... [2021-12-06 19:21:28,615 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point_ldv-val-v0.8.cil.out.i [2021-12-06 19:21:28,619 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 19:21:28,619 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 19:21:28,663 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 19:21:28,668 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 19:21:28,668 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 19:21:28,722 INFO L276 IsEmpty]: Start isEmpty. Operand has 2657 states, 1872 states have (on average 1.3707264957264957) internal successors, (2566), 1907 states have internal predecessors, (2566), 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) [2021-12-06 19:21:28,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 19:21:28,732 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:21:28,733 INFO L514 BasicCegarLoop]: 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] [2021-12-06 19:21:28,733 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:21:28,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:21:28,737 INFO L85 PathProgramCache]: Analyzing trace with hash 396950189, now seen corresponding path program 1 times [2021-12-06 19:21:28,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:21:28,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334403282] [2021-12-06 19:21:28,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:21:28,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:21:29,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:29,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:21:29,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:29,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:21:29,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:29,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:21:29,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:29,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:21:29,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:29,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:21:29,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:29,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:21:29,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:29,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:21:29,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:29,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:21:29,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:29,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:21:29,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:29,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 19:21:29,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:29,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:21:29,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:29,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-06 19:21:29,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:29,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:21:29,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:29,781 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-12-06 19:21:29,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:21:29,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334403282] [2021-12-06 19:21:29,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334403282] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:21:29,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:21:29,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 19:21:29,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275809999] [2021-12-06 19:21:29,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:21:29,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:21:29,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:21:29,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:21:29,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:21:29,815 INFO L87 Difference]: Start difference. First operand has 2657 states, 1872 states have (on average 1.3707264957264957) internal successors, (2566), 1907 states have internal predecessors, (2566), 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) [2021-12-06 19:21:31,945 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:21:34,033 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:21:36,106 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:21:39,475 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:21:41,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:21:48,153 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:21:55,655 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:22:00,998 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:22:05,508 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:22:12,832 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:22:14,887 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:22:16,954 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:22:18,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:22:18,522 INFO L93 Difference]: Finished difference Result 5616 states and 8482 transitions. [2021-12-06 19:22:18,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 19:22:18,526 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 [2021-12-06 19:22:18,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:22:18,565 INFO L225 Difference]: With dead ends: 5616 [2021-12-06 19:22:18,565 INFO L226 Difference]: Without dead ends: 2942 [2021-12-06 19:22:18,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:22:18,586 INFO L933 BasicCegarLoop]: 3658 mSDtfsCounter, 1106 mSDsluCounter, 5839 mSDsCounter, 0 mSdLazyCounter, 2706 mSolverCounterSat, 1570 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 9497 SdHoareTripleChecker+Invalid, 4288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1570 IncrementalHoareTripleChecker+Valid, 2706 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:22:18,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1176 Valid, 9497 Invalid, 4288 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1570 Valid, 2706 Invalid, 12 Unknown, 0 Unchecked, 48.1s Time] [2021-12-06 19:22:18,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2942 states. [2021-12-06 19:22:18,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2942 to 2635. [2021-12-06 19:22:18,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2635 states, 1867 states have (on average 1.3615425816818425) internal successors, (2542), 1885 states have internal predecessors, (2542), 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) [2021-12-06 19:22:18,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2635 states to 2635 states and 3804 transitions. [2021-12-06 19:22:18,770 INFO L78 Accepts]: Start accepts. Automaton has 2635 states and 3804 transitions. Word has length 98 [2021-12-06 19:22:18,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:22:18,770 INFO L470 AbstractCegarLoop]: Abstraction has 2635 states and 3804 transitions. [2021-12-06 19:22:18,770 INFO L471 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) [2021-12-06 19:22:18,770 INFO L276 IsEmpty]: Start isEmpty. Operand 2635 states and 3804 transitions. [2021-12-06 19:22:18,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 19:22:18,776 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:22:18,776 INFO L514 BasicCegarLoop]: 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] [2021-12-06 19:22:18,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 19:22:18,777 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:22:18,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:22:18,777 INFO L85 PathProgramCache]: Analyzing trace with hash 230108723, now seen corresponding path program 1 times [2021-12-06 19:22:18,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:22:18,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226189686] [2021-12-06 19:22:18,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:22:18,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:22:18,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:22:19,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:22:19,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:22:19,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:22:19,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:22:19,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:22:19,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:22:19,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:22:19,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:22:19,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:22:19,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:22:19,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:22:19,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:22:19,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:22:19,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:22:19,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:22:19,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:22:19,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:22:19,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:22:19,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 19:22:19,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:22:19,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:22:19,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:22:19,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-06 19:22:19,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:22:19,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:22:19,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:22:19,569 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-12-06 19:22:19,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:22:19,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226189686] [2021-12-06 19:22:19,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226189686] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:22:19,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:22:19,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 19:22:19,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121811971] [2021-12-06 19:22:19,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:22:19,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 19:22:19,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:22:19,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 19:22:19,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:22:19,572 INFO L87 Difference]: Start difference. First operand 2635 states and 3804 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) [2021-12-06 19:22:21,667 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:22:23,681 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:22:25,714 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:22:27,790 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:22:31,622 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:22:34,090 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:22:41,366 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:22:51,241 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:23:00,257 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:23:22,506 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:23:24,552 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:23:26,572 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:23:31,122 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:23:33,172 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:23:35,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:23:36,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:23:36,054 INFO L93 Difference]: Finished difference Result 8338 states and 12165 transitions. [2021-12-06 19:23:36,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:23:36,055 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 [2021-12-06 19:23:36,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:23:36,104 INFO L225 Difference]: With dead ends: 8338 [2021-12-06 19:23:36,104 INFO L226 Difference]: Without dead ends: 5718 [2021-12-06 19:23:36,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-06 19:23:36,113 INFO L933 BasicCegarLoop]: 4170 mSDtfsCounter, 5406 mSDsluCounter, 9754 mSDsCounter, 0 mSdLazyCounter, 4626 mSolverCounterSat, 3375 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 71.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5830 SdHoareTripleChecker+Valid, 13924 SdHoareTripleChecker+Invalid, 8016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3375 IncrementalHoareTripleChecker+Valid, 4626 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 75.6s IncrementalHoareTripleChecker+Time [2021-12-06 19:23:36,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5830 Valid, 13924 Invalid, 8016 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3375 Valid, 4626 Invalid, 15 Unknown, 0 Unchecked, 75.6s Time] [2021-12-06 19:23:36,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5718 states. [2021-12-06 19:23:36,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5718 to 5118. [2021-12-06 19:23:36,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5118 states, 3638 states have (on average 1.365035733919736) internal successors, (4966), 3665 states have internal predecessors, (4966), 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) [2021-12-06 19:23:36,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5118 states to 5118 states and 7408 transitions. [2021-12-06 19:23:36,307 INFO L78 Accepts]: Start accepts. Automaton has 5118 states and 7408 transitions. Word has length 98 [2021-12-06 19:23:36,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:23:36,308 INFO L470 AbstractCegarLoop]: Abstraction has 5118 states and 7408 transitions. [2021-12-06 19:23:36,308 INFO L471 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) [2021-12-06 19:23:36,308 INFO L276 IsEmpty]: Start isEmpty. Operand 5118 states and 7408 transitions. [2021-12-06 19:23:36,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-06 19:23:36,313 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:23:36,313 INFO L514 BasicCegarLoop]: 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] [2021-12-06 19:23:36,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 19:23:36,313 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:23:36,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:23:36,314 INFO L85 PathProgramCache]: Analyzing trace with hash -996800530, now seen corresponding path program 1 times [2021-12-06 19:23:36,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:23:36,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940913359] [2021-12-06 19:23:36,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:23:36,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:23:36,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:23:36,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:23:36,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:23:36,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:23:36,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:23:36,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:23:36,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:23:36,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:23:36,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:23:36,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:23:36,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:23:36,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:23:36,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:23:36,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:23:36,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:23:36,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:23:36,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:23:36,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:23:36,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:23:36,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 19:23:36,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:23:36,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:23:36,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:23:37,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-06 19:23:37,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:23:37,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:23:37,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:23:37,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-06 19:23:37,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:23:37,047 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-12-06 19:23:37,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:23:37,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940913359] [2021-12-06 19:23:37,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940913359] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:23:37,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:23:37,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 19:23:37,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866570443] [2021-12-06 19:23:37,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:23:37,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 19:23:37,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:23:37,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 19:23:37,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:23:37,048 INFO L87 Difference]: Start difference. First operand 5118 states and 7408 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) [2021-12-06 19:23:39,143 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:23:41,248 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:23:44,534 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:23:47,029 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:23:53,124 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:24:01,126 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:24:07,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:24:25,343 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:24:27,363 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:24:31,078 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:24:33,114 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:24:33,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:24:33,658 INFO L93 Difference]: Finished difference Result 16308 states and 23835 transitions. [2021-12-06 19:24:33,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:24:33,659 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 [2021-12-06 19:24:33,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:24:33,726 INFO L225 Difference]: With dead ends: 16308 [2021-12-06 19:24:33,726 INFO L226 Difference]: Without dead ends: 11205 [2021-12-06 19:24:33,741 INFO L932 BasicCegarLoop]: 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 [2021-12-06 19:24:33,742 INFO L933 BasicCegarLoop]: 4160 mSDtfsCounter, 5858 mSDsluCounter, 7675 mSDsCounter, 0 mSdLazyCounter, 3463 mSolverCounterSat, 3637 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6281 SdHoareTripleChecker+Valid, 11835 SdHoareTripleChecker+Invalid, 7111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3637 IncrementalHoareTripleChecker+Valid, 3463 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.7s IncrementalHoareTripleChecker+Time [2021-12-06 19:24:33,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6281 Valid, 11835 Invalid, 7111 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3637 Valid, 3463 Invalid, 11 Unknown, 0 Unchecked, 55.7s Time] [2021-12-06 19:24:33,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11205 states. [2021-12-06 19:24:34,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11205 to 9994. [2021-12-06 19:24:34,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9994 states, 7109 states have (on average 1.3685469123646083) internal successors, (9729), 7149 states have internal predecessors, (9729), 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) [2021-12-06 19:24:34,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9994 states to 9994 states and 14499 transitions. [2021-12-06 19:24:34,084 INFO L78 Accepts]: Start accepts. Automaton has 9994 states and 14499 transitions. Word has length 103 [2021-12-06 19:24:34,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:24:34,084 INFO L470 AbstractCegarLoop]: Abstraction has 9994 states and 14499 transitions. [2021-12-06 19:24:34,085 INFO L471 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) [2021-12-06 19:24:34,085 INFO L276 IsEmpty]: Start isEmpty. Operand 9994 states and 14499 transitions. [2021-12-06 19:24:34,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-06 19:24:34,087 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:24:34,087 INFO L514 BasicCegarLoop]: 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] [2021-12-06 19:24:34,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 19:24:34,087 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:24:34,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:24:34,088 INFO L85 PathProgramCache]: Analyzing trace with hash -935993056, now seen corresponding path program 1 times [2021-12-06 19:24:34,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:24:34,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67469580] [2021-12-06 19:24:34,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:24:34,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:24:34,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:24:34,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:24:34,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:24:34,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:24:34,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:24:34,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:24:34,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:24:34,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:24:34,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:24:34,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:24:34,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:24:34,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:24:34,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:24:34,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:24:34,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:24:34,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:24:34,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:24:34,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:24:34,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:24:34,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 19:24:34,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:24:34,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:24:34,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:24:34,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-06 19:24:34,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:24:34,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:24:34,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:24:34,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-06 19:24:34,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:24:34,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:24:34,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:24:34,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-06 19:24:34,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:24:34,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:24:34,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:24:34,876 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-12-06 19:24:34,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:24:34,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67469580] [2021-12-06 19:24:34,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67469580] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:24:34,877 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:24:34,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 19:24:34,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032815866] [2021-12-06 19:24:34,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:24:34,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 19:24:34,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:24:34,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 19:24:34,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:24:34,878 INFO L87 Difference]: Start difference. First operand 9994 states and 14499 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) [2021-12-06 19:24:36,989 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:24:40,007 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:24:42,377 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:24:47,484 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:24:54,018 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:24:59,056 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:25:12,682 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:25:14,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:25:14,069 INFO L93 Difference]: Finished difference Result 32129 states and 46974 transitions. [2021-12-06 19:25:14,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:25:14,070 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 [2021-12-06 19:25:14,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:25:14,173 INFO L225 Difference]: With dead ends: 32129 [2021-12-06 19:25:14,173 INFO L226 Difference]: Without dead ends: 22150 [2021-12-06 19:25:14,208 INFO L932 BasicCegarLoop]: 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 [2021-12-06 19:25:14,209 INFO L933 BasicCegarLoop]: 4224 mSDtfsCounter, 6683 mSDsluCounter, 5729 mSDsCounter, 0 mSdLazyCounter, 2336 mSolverCounterSat, 5047 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7105 SdHoareTripleChecker+Valid, 9953 SdHoareTripleChecker+Invalid, 7390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5047 IncrementalHoareTripleChecker+Valid, 2336 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:25:14,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7105 Valid, 9953 Invalid, 7390 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5047 Valid, 2336 Invalid, 7 Unknown, 0 Unchecked, 38.1s Time] [2021-12-06 19:25:14,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22150 states. [2021-12-06 19:25:14,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22150 to 19749. [2021-12-06 19:25:14,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19749 states, 14060 states have (on average 1.3689900426742532) internal successors, (19248), 14126 states have internal predecessors, (19248), 4678 states have call successors, (4678), 1008 states have call predecessors, (4678), 1010 states have return successors, (4724), 4664 states have call predecessors, (4724), 4668 states have call successors, (4724) [2021-12-06 19:25:14,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19749 states to 19749 states and 28650 transitions. [2021-12-06 19:25:14,824 INFO L78 Accepts]: Start accepts. Automaton has 19749 states and 28650 transitions. Word has length 113 [2021-12-06 19:25:14,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:25:14,824 INFO L470 AbstractCegarLoop]: Abstraction has 19749 states and 28650 transitions. [2021-12-06 19:25:14,825 INFO L471 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) [2021-12-06 19:25:14,825 INFO L276 IsEmpty]: Start isEmpty. Operand 19749 states and 28650 transitions. [2021-12-06 19:25:14,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-06 19:25:14,827 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:25:14,827 INFO L514 BasicCegarLoop]: 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] [2021-12-06 19:25:14,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 19:25:14,827 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:25:14,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:25:14,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1980066253, now seen corresponding path program 1 times [2021-12-06 19:25:14,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:25:14,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330168079] [2021-12-06 19:25:14,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:25:14,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:25:14,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:25:15,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:25:15,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:25:15,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:25:15,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:25:15,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:25:15,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:25:15,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:25:15,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:25:15,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:25:15,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:25:15,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:25:15,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:25:15,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:25:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:25:15,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:25:15,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:25:15,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:25:15,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:25:15,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 19:25:15,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:25:15,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:25:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:25:15,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-06 19:25:15,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:25:15,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:25:15,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:25:15,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-06 19:25:15,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:25:15,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:25:15,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:25:15,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:25:15,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:25:15,672 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-12-06 19:25:15,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:25:15,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330168079] [2021-12-06 19:25:15,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330168079] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:25:15,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:25:15,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:25:15,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129310503] [2021-12-06 19:25:15,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:25:15,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:25:15,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:25:15,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:25:15,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:25:15,674 INFO L87 Difference]: Start difference. First operand 19749 states and 28650 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) [2021-12-06 19:25:17,769 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:25:19,854 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:25:22,403 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:25:24,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:25:26,432 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:25:30,624 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:25:38,781 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:25:48,314 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:25:58,045 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:26:05,727 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:26:08,230 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:26:09,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:26:09,545 INFO L93 Difference]: Finished difference Result 61883 states and 90581 transitions. [2021-12-06 19:26:09,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:26:09,546 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 [2021-12-06 19:26:09,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:26:09,683 INFO L225 Difference]: With dead ends: 61883 [2021-12-06 19:26:09,683 INFO L226 Difference]: Without dead ends: 42149 [2021-12-06 19:26:09,735 INFO L932 BasicCegarLoop]: 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 [2021-12-06 19:26:09,736 INFO L933 BasicCegarLoop]: 4289 mSDtfsCounter, 7097 mSDsluCounter, 8019 mSDsCounter, 0 mSdLazyCounter, 3232 mSolverCounterSat, 6131 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7516 SdHoareTripleChecker+Valid, 12308 SdHoareTripleChecker+Invalid, 9372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6131 IncrementalHoareTripleChecker+Valid, 3232 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:26:09,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7516 Valid, 12308 Invalid, 9372 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6131 Valid, 3232 Invalid, 9 Unknown, 0 Unchecked, 52.2s Time] [2021-12-06 19:26:09,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42149 states. [2021-12-06 19:26:10,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42149 to 36576. [2021-12-06 19:26:10,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36576 states, 26096 states have (on average 1.375689760882894) internal successors, (35900), 26187 states have internal predecessors, (35900), 8600 states have call successors, (8600), 1876 states have call predecessors, (8600), 1879 states have return successors, (8678), 8586 states have call predecessors, (8678), 8590 states have call successors, (8678) [2021-12-06 19:26:10,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36576 states to 36576 states and 53178 transitions. [2021-12-06 19:26:10,831 INFO L78 Accepts]: Start accepts. Automaton has 36576 states and 53178 transitions. Word has length 113 [2021-12-06 19:26:10,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:26:10,831 INFO L470 AbstractCegarLoop]: Abstraction has 36576 states and 53178 transitions. [2021-12-06 19:26:10,831 INFO L471 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) [2021-12-06 19:26:10,831 INFO L276 IsEmpty]: Start isEmpty. Operand 36576 states and 53178 transitions. [2021-12-06 19:26:10,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-06 19:26:10,833 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:26:10,833 INFO L514 BasicCegarLoop]: 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] [2021-12-06 19:26:10,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 19:26:10,833 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:26:10,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:26:10,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1100099430, now seen corresponding path program 1 times [2021-12-06 19:26:10,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:26:10,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776411333] [2021-12-06 19:26:10,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:26:10,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:26:10,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:26:11,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:26:11,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:26:11,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:26:11,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:26:11,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:26:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:26:11,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:26:11,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:26:11,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:26:11,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:26:11,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:26:11,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:26:11,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:26:11,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:26:11,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:26:11,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:26:11,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:26:11,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:26:11,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 19:26:11,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:26:11,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:26:11,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:26:11,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-06 19:26:11,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:26:11,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:26:11,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:26:11,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-06 19:26:11,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:26:11,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:26:11,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:26:11,687 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-12-06 19:26:11,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:26:11,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776411333] [2021-12-06 19:26:11,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776411333] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:26:11,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:26:11,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 19:26:11,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308424129] [2021-12-06 19:26:11,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:26:11,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 19:26:11,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:26:11,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 19:26:11,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:26:11,689 INFO L87 Difference]: Start difference. First operand 36576 states and 53178 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) [2021-12-06 19:26:13,807 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:26:15,902 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:26:17,918 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:26:20,487 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:26:22,528 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:26:24,586 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:26:26,643 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:26:29,194 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:26:37,259 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:26:40,467 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:26:48,422 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:26:59,181 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:27:08,204 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:27:10,243 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:27:12,279 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:27:14,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:27:14,152 INFO L93 Difference]: Finished difference Result 82139 states and 119320 transitions. [2021-12-06 19:27:14,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:27:14,153 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 [2021-12-06 19:27:14,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:27:14,311 INFO L225 Difference]: With dead ends: 82139 [2021-12-06 19:27:14,311 INFO L226 Difference]: Without dead ends: 45578 [2021-12-06 19:27:14,412 INFO L932 BasicCegarLoop]: 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 [2021-12-06 19:27:14,413 INFO L933 BasicCegarLoop]: 3693 mSDtfsCounter, 4169 mSDsluCounter, 6716 mSDsCounter, 0 mSdLazyCounter, 3073 mSolverCounterSat, 2061 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4439 SdHoareTripleChecker+Valid, 10409 SdHoareTripleChecker+Invalid, 5148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2061 IncrementalHoareTripleChecker+Valid, 3073 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.8s IncrementalHoareTripleChecker+Time [2021-12-06 19:27:14,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4439 Valid, 10409 Invalid, 5148 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2061 Valid, 3073 Invalid, 14 Unknown, 0 Unchecked, 60.8s Time] [2021-12-06 19:27:14,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45578 states. [2021-12-06 19:27:15,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45578 to 39976. [2021-12-06 19:27:15,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39976 states, 28513 states have (on average 1.368744081646968) internal successors, (39027), 28602 states have internal predecessors, (39027), 9169 states have call successors, (9169), 2291 states have call predecessors, (9169), 2293 states have return successors, (9263), 9156 states have call predecessors, (9263), 9159 states have call successors, (9263) [2021-12-06 19:27:15,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39976 states to 39976 states and 57459 transitions. [2021-12-06 19:27:15,635 INFO L78 Accepts]: Start accepts. Automaton has 39976 states and 57459 transitions. Word has length 116 [2021-12-06 19:27:15,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:27:15,636 INFO L470 AbstractCegarLoop]: Abstraction has 39976 states and 57459 transitions. [2021-12-06 19:27:15,636 INFO L471 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) [2021-12-06 19:27:15,636 INFO L276 IsEmpty]: Start isEmpty. Operand 39976 states and 57459 transitions. [2021-12-06 19:27:15,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-06 19:27:15,638 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:27:15,639 INFO L514 BasicCegarLoop]: 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] [2021-12-06 19:27:15,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 19:27:15,639 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:27:15,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:27:15,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1579122139, now seen corresponding path program 1 times [2021-12-06 19:27:15,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:27:15,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170816407] [2021-12-06 19:27:15,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:27:15,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:27:15,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:16,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:27:16,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:16,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:27:16,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:16,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:27:16,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:16,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:27:16,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:16,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:27:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:16,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:27:16,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:16,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:27:16,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:16,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:27:16,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:16,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:27:16,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:16,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 19:27:16,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:16,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:27:16,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:16,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-06 19:27:16,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:16,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:27:16,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:16,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 19:27:16,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:16,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-06 19:27:16,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:16,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:27:16,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:16,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:27:16,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:16,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:27:16,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:27:16,553 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-12-06 19:27:16,553 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:27:16,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170816407] [2021-12-06 19:27:16,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170816407] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:27:16,553 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:27:16,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:27:16,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735540983] [2021-12-06 19:27:16,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:27:16,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:27:16,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:27:16,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:27:16,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:27:16,555 INFO L87 Difference]: Start difference. First operand 39976 states and 57459 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) [2021-12-06 19:27:18,641 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:27:22,616 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:27:25,658 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:27:35,560 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:27:44,913 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:27:57,063 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:28:06,927 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:28:08,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:28:08,939 INFO L93 Difference]: Finished difference Result 45592 states and 65971 transitions. [2021-12-06 19:28:08,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:28:08,940 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 [2021-12-06 19:28:08,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:28:09,072 INFO L225 Difference]: With dead ends: 45592 [2021-12-06 19:28:09,072 INFO L226 Difference]: Without dead ends: 45589 [2021-12-06 19:28:09,118 INFO L932 BasicCegarLoop]: 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 [2021-12-06 19:28:09,119 INFO L933 BasicCegarLoop]: 3651 mSDtfsCounter, 4801 mSDsluCounter, 5530 mSDsCounter, 0 mSdLazyCounter, 3606 mSolverCounterSat, 2163 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5169 SdHoareTripleChecker+Valid, 9181 SdHoareTripleChecker+Invalid, 5776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2163 IncrementalHoareTripleChecker+Valid, 3606 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.7s IncrementalHoareTripleChecker+Time [2021-12-06 19:28:09,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5169 Valid, 9181 Invalid, 5776 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2163 Valid, 3606 Invalid, 7 Unknown, 0 Unchecked, 50.7s Time] [2021-12-06 19:28:09,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45589 states. [2021-12-06 19:28:10,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45589 to 40054. [2021-12-06 19:28:10,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40054 states, 28571 states have (on average 1.3684855272829093) internal successors, (39099), 28658 states have internal predecessors, (39099), 9173 states have call successors, (9173), 2307 states have call predecessors, (9173), 2309 states have return successors, (9268), 9162 states have call predecessors, (9268), 9164 states have call successors, (9268) [2021-12-06 19:28:10,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40054 states to 40054 states and 57540 transitions. [2021-12-06 19:28:10,380 INFO L78 Accepts]: Start accepts. Automaton has 40054 states and 57540 transitions. Word has length 127 [2021-12-06 19:28:10,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:28:10,381 INFO L470 AbstractCegarLoop]: Abstraction has 40054 states and 57540 transitions. [2021-12-06 19:28:10,381 INFO L471 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) [2021-12-06 19:28:10,381 INFO L276 IsEmpty]: Start isEmpty. Operand 40054 states and 57540 transitions. [2021-12-06 19:28:10,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-12-06 19:28:10,384 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:28:10,384 INFO L514 BasicCegarLoop]: 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] [2021-12-06 19:28:10,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 19:28:10,384 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:28:10,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:28:10,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1709118667, now seen corresponding path program 1 times [2021-12-06 19:28:10,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:28:10,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071444309] [2021-12-06 19:28:10,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:28:10,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:28:10,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:10,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:28:10,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:10,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:10,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:10,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:10,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:10,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:28:10,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:10,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:10,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:10,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:10,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:10,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:28:10,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:10,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:10,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:10,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:10,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:10,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 19:28:10,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:11,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:11,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:11,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-06 19:28:11,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:11,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:11,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:11,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 19:28:11,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:11,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-06 19:28:11,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:11,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:11,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:11,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:28:11,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:11,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:28:11,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:28:11,315 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-12-06 19:28:11,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:28:11,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071444309] [2021-12-06 19:28:11,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071444309] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:28:11,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:28:11,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:28:11,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664957863] [2021-12-06 19:28:11,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:28:11,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:28:11,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:28:11,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:28:11,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:28:11,318 INFO L87 Difference]: Start difference. First operand 40054 states and 57540 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) [2021-12-06 19:28:13,433 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:28:15,499 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:28:18,468 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:28:20,525 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:28:22,581 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:28:25,411 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:28:34,483 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:28:42,769 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:28:53,055 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:29:01,139 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:29:03,154 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:29:04,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:29:04,534 INFO L93 Difference]: Finished difference Result 45591 states and 65969 transitions. [2021-12-06 19:29:04,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:29:04,534 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 [2021-12-06 19:29:04,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:29:04,651 INFO L225 Difference]: With dead ends: 45591 [2021-12-06 19:29:04,651 INFO L226 Difference]: Without dead ends: 45588 [2021-12-06 19:29:04,668 INFO L932 BasicCegarLoop]: 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 [2021-12-06 19:29:04,669 INFO L933 BasicCegarLoop]: 3636 mSDtfsCounter, 4810 mSDsluCounter, 3714 mSDsCounter, 0 mSdLazyCounter, 2794 mSolverCounterSat, 2163 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5183 SdHoareTripleChecker+Valid, 7350 SdHoareTripleChecker+Invalid, 4967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2163 IncrementalHoareTripleChecker+Valid, 2794 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.4s IncrementalHoareTripleChecker+Time [2021-12-06 19:29:04,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5183 Valid, 7350 Invalid, 4967 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2163 Valid, 2794 Invalid, 10 Unknown, 0 Unchecked, 51.4s Time] [2021-12-06 19:29:04,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45588 states. [2021-12-06 19:29:05,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45588 to 40053. [2021-12-06 19:29:05,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40053 states, 28571 states have (on average 1.3684505267579015) internal successors, (39098), 28657 states have internal predecessors, (39098), 9172 states have call successors, (9172), 2307 states have call predecessors, (9172), 2309 states have return successors, (9268), 9162 states have call predecessors, (9268), 9164 states have call successors, (9268) [2021-12-06 19:29:05,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40053 states to 40053 states and 57538 transitions. [2021-12-06 19:29:06,001 INFO L78 Accepts]: Start accepts. Automaton has 40053 states and 57538 transitions. Word has length 128 [2021-12-06 19:29:06,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:29:06,001 INFO L470 AbstractCegarLoop]: Abstraction has 40053 states and 57538 transitions. [2021-12-06 19:29:06,001 INFO L471 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) [2021-12-06 19:29:06,001 INFO L276 IsEmpty]: Start isEmpty. Operand 40053 states and 57538 transitions. [2021-12-06 19:29:06,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-06 19:29:06,004 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:29:06,004 INFO L514 BasicCegarLoop]: 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] [2021-12-06 19:29:06,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 19:29:06,005 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:29:06,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:29:06,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1444038872, now seen corresponding path program 1 times [2021-12-06 19:29:06,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:29:06,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141410518] [2021-12-06 19:29:06,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:29:06,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:29:06,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:06,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:29:06,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:06,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:06,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:06,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:06,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:06,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:29:06,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:06,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:06,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:06,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:06,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:06,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:29:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:06,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:06,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:06,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:06,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:06,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 19:29:06,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:06,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:06,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:06,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-06 19:29:06,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:06,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:06,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:06,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 19:29:06,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:06,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-06 19:29:06,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:06,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:06,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:06,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:06,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:06,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:06,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:06,953 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-12-06 19:29:06,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:29:06,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141410518] [2021-12-06 19:29:06,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141410518] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:29:06,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:29:06,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:29:06,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051993534] [2021-12-06 19:29:06,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:29:06,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:29:06,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:29:06,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:29:06,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:29:06,955 INFO L87 Difference]: Start difference. First operand 40053 states and 57538 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 3 states have internal predecessors, (59), 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) [2021-12-06 19:29:09,071 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:29:12,104 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:29:14,653 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:29:20,231 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:29:25,889 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:29:31,986 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:29:37,649 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:29:38,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:29:38,459 INFO L93 Difference]: Finished difference Result 45590 states and 65967 transitions. [2021-12-06 19:29:38,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:29:38,461 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 3 states have internal predecessors, (59), 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 129 [2021-12-06 19:29:38,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:29:38,576 INFO L225 Difference]: With dead ends: 45590 [2021-12-06 19:29:38,576 INFO L226 Difference]: Without dead ends: 45587 [2021-12-06 19:29:38,592 INFO L932 BasicCegarLoop]: 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 [2021-12-06 19:29:38,593 INFO L933 BasicCegarLoop]: 3637 mSDtfsCounter, 5748 mSDsluCounter, 2323 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 3668 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6118 SdHoareTripleChecker+Valid, 5960 SdHoareTripleChecker+Invalid, 4945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3668 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.8s IncrementalHoareTripleChecker+Time [2021-12-06 19:29:38,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6118 Valid, 5960 Invalid, 4945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3668 Valid, 1270 Invalid, 7 Unknown, 0 Unchecked, 29.8s Time] [2021-12-06 19:29:38,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45587 states. [2021-12-06 19:29:39,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45587 to 40052. [2021-12-06 19:29:39,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40052 states, 28571 states have (on average 1.3684155262328934) internal successors, (39097), 28656 states have internal predecessors, (39097), 9171 states have call successors, (9171), 2307 states have call predecessors, (9171), 2309 states have return successors, (9268), 9162 states have call predecessors, (9268), 9164 states have call successors, (9268) [2021-12-06 19:29:39,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40052 states to 40052 states and 57536 transitions. [2021-12-06 19:29:39,991 INFO L78 Accepts]: Start accepts. Automaton has 40052 states and 57536 transitions. Word has length 129 [2021-12-06 19:29:39,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:29:39,992 INFO L470 AbstractCegarLoop]: Abstraction has 40052 states and 57536 transitions. [2021-12-06 19:29:39,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 3 states have internal predecessors, (59), 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) [2021-12-06 19:29:39,992 INFO L276 IsEmpty]: Start isEmpty. Operand 40052 states and 57536 transitions. [2021-12-06 19:29:39,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-06 19:29:39,995 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:29:39,995 INFO L514 BasicCegarLoop]: 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, 1] [2021-12-06 19:29:39,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 19:29:39,995 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 19:29:39,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:29:39,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1816494952, now seen corresponding path program 1 times [2021-12-06 19:29:39,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:29:39,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947895495] [2021-12-06 19:29:39,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:29:39,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:29:40,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:40,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:29:40,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:40,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:40,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:40,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:40,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 19:29:40,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:40,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:40,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:40,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:40,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:40,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 19:29:40,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:40,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:40,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:40,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:40,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:40,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 19:29:40,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:40,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:40,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-06 19:29:40,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:40,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:40,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:40,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-06 19:29:40,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:40,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-06 19:29:40,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:40,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:40,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:40,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 19:29:40,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:40,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 19:29:40,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:29:40,986 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-12-06 19:29:40,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:29:40,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947895495] [2021-12-06 19:29:40,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947895495] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:29:40,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:29:40,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 19:29:40,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330492737] [2021-12-06 19:29:40,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:29:40,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:29:40,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:29:40,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:29:40,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:29:40,988 INFO L87 Difference]: Start difference. First operand 40052 states and 57536 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 3 states have internal predecessors, (60), 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) [2021-12-06 19:29:43,072 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:29:45,135 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:29:47,169 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:29:49,184 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:29:53,376 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:29:56,602 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 19:30:08,575 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []