./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 6992add114e455bb94387f79e47de65715ed99025d29a244ffa0e4253f425809 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 01:51:13,665 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 01:51:13,666 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 01:51:13,683 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 01:51:13,683 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 01:51:13,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 01:51:13,684 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 01:51:13,685 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 01:51:13,686 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 01:51:13,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 01:51:13,688 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 01:51:13,688 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 01:51:13,689 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 01:51:13,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 01:51:13,690 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 01:51:13,691 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 01:51:13,691 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 01:51:13,692 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 01:51:13,693 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 01:51:13,694 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 01:51:13,695 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 01:51:13,696 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 01:51:13,696 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 01:51:13,697 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 01:51:13,699 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 01:51:13,699 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 01:51:13,699 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 01:51:13,700 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 01:51:13,700 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 01:51:13,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 01:51:13,701 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 01:51:13,701 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 01:51:13,702 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 01:51:13,702 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 01:51:13,703 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 01:51:13,703 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 01:51:13,704 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 01:51:13,704 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 01:51:13,704 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 01:51:13,705 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 01:51:13,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 01:51:13,713 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 01:51:13,741 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 01:51:13,742 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 01:51:13,743 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 01:51:13,744 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 01:51:13,745 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 01:51:13,745 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 01:51:13,745 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 01:51:13,745 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 01:51:13,746 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 01:51:13,746 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 01:51:13,746 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 01:51:13,747 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 01:51:13,747 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 01:51:13,747 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 01:51:13,747 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 01:51:13,747 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 01:51:13,747 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 01:51:13,748 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 01:51:13,748 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 01:51:13,748 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 01:51:13,748 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 01:51:13,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 01:51:13,749 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 01:51:13,749 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 01:51:13,749 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 01:51:13,749 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 01:51:13,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 01:51:13,750 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 01:51:13,751 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 01:51:13,751 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 01:51:13,751 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 01:51:13,751 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6992add114e455bb94387f79e47de65715ed99025d29a244ffa0e4253f425809 [2021-11-17 01:51:13,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 01:51:13,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 01:51:13,968 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 01:51:13,969 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 01:51:13,970 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 01:51:13,971 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point.cil.out.i [2021-11-17 01:51:14,029 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22e9abd5c/0bea08037c8449b1b5f98b8e3338db1d/FLAGac7fee4da [2021-11-17 01:51:14,663 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 01:51:14,664 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point.cil.out.i [2021-11-17 01:51:14,698 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22e9abd5c/0bea08037c8449b1b5f98b8e3338db1d/FLAGac7fee4da [2021-11-17 01:51:14,825 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22e9abd5c/0bea08037c8449b1b5f98b8e3338db1d [2021-11-17 01:51:14,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 01:51:14,828 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 01:51:14,829 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 01:51:14,832 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 01:51:14,834 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 01:51:14,835 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 01:51:14" (1/1) ... [2021-11-17 01:51:14,836 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ceeaf4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:51:14, skipping insertion in model container [2021-11-17 01:51:14,836 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 01:51:14" (1/1) ... [2021-11-17 01:51:14,841 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 01:51:14,938 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 01:51:15,532 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point.cil.out.i[158951,158964] [2021-11-17 01:51:17,315 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 01:51:17,382 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 01:51:17,450 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point.cil.out.i[158951,158964] [2021-11-17 01:51:17,777 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 01:51:17,926 INFO L208 MainTranslator]: Completed translation [2021-11-17 01:51:17,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:51:17 WrapperNode [2021-11-17 01:51:17,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 01:51:17,929 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 01:51:17,929 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 01:51:17,929 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 01:51:17,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:51:17" (1/1) ... [2021-11-17 01:51:18,065 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:51:17" (1/1) ... [2021-11-17 01:51:18,400 INFO L137 Inliner]: procedures = 488, calls = 4831, calls flagged for inlining = 239, calls inlined = 220, statements flattened = 9716 [2021-11-17 01:51:18,401 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 01:51:18,402 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 01:51:18,402 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 01:51:18,402 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 01:51:18,409 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:51:17" (1/1) ... [2021-11-17 01:51:18,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:51:17" (1/1) ... [2021-11-17 01:51:18,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:51:17" (1/1) ... [2021-11-17 01:51:18,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:51:17" (1/1) ... [2021-11-17 01:51:19,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:51:17" (1/1) ... [2021-11-17 01:51:19,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:51:17" (1/1) ... [2021-11-17 01:51:19,212 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:51:17" (1/1) ... [2021-11-17 01:51:19,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 01:51:19,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 01:51:19,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 01:51:19,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 01:51:19,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:51:17" (1/1) ... [2021-11-17 01:51:19,298 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 01:51:19,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 01:51:19,320 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-17 01:51:19,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-17 01:51:19,357 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-17 01:51:19,358 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-17 01:51:19,358 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_urb_cleanup [2021-11-17 01:51:19,358 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_urb_cleanup [2021-11-17 01:51:19,358 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-11-17 01:51:19,358 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-11-17 01:51:19,358 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-17 01:51:19,358 INFO L130 BoogieDeclarations]: Found specification of procedure pm_alsa_resume [2021-11-17 01:51:19,359 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_alsa_resume [2021-11-17 01:51:19,359 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2021-11-17 01:51:19,359 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2021-11-17 01:51:19,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 01:51:19,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 01:51:19,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2021-11-17 01:51:19,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2021-11-17 01:51:19,359 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2021-11-17 01:51:19,359 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2021-11-17 01:51:19,360 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_stop_streaming [2021-11-17 01:51:19,360 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_stop_streaming [2021-11-17 01:51:19,360 INFO L130 BoogieDeclarations]: Found specification of procedure vdev_init [2021-11-17 01:51:19,360 INFO L138 BoogieDeclarations]: Found implementation of procedure vdev_init [2021-11-17 01:51:19,360 INFO L130 BoogieDeclarations]: Found specification of procedure pd_vidioc_s_fmt [2021-11-17 01:51:19,360 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_vidioc_s_fmt [2021-11-17 01:51:19,360 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_check_mode_dvbt [2021-11-17 01:51:19,360 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_check_mode_dvbt [2021-11-17 01:51:19,360 INFO L130 BoogieDeclarations]: Found specification of procedure set_frequency___0 [2021-11-17 01:51:19,360 INFO L138 BoogieDeclarations]: Found implementation of procedure set_frequency___0 [2021-11-17 01:51:19,361 INFO L130 BoogieDeclarations]: Found specification of procedure set_tuner_mode [2021-11-17 01:51:19,361 INFO L138 BoogieDeclarations]: Found implementation of procedure set_tuner_mode [2021-11-17 01:51:19,361 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fm_close [2021-11-17 01:51:19,361 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fm_close [2021-11-17 01:51:19,361 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2021-11-17 01:51:19,361 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2021-11-17 01:51:19,361 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_capture_pointer [2021-11-17 01:51:19,361 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_capture_pointer [2021-11-17 01:51:19,361 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_to_vmalloc [2021-11-17 01:51:19,362 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_to_vmalloc [2021-11-17 01:51:19,362 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-17 01:51:19,362 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-17 01:51:19,362 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2021-11-17 01:51:19,362 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2021-11-17 01:51:19,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 01:51:19,362 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_capture_trigger [2021-11-17 01:51:19,362 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_capture_trigger [2021-11-17 01:51:19,363 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_check_mode_radio [2021-11-17 01:51:19,363 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_check_mode_radio [2021-11-17 01:51:19,363 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_pcm_close [2021-11-17 01:51:19,363 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_pcm_close [2021-11-17 01:51:19,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 01:51:19,363 INFO L130 BoogieDeclarations]: Found specification of procedure check_control_id [2021-11-17 01:51:19,363 INFO L138 BoogieDeclarations]: Found implementation of procedure check_control_id [2021-11-17 01:51:19,363 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-11-17 01:51:19,363 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-11-17 01:51:19,364 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2021-11-17 01:51:19,364 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2021-11-17 01:51:19,364 INFO L130 BoogieDeclarations]: Found specification of procedure pd_buf_queue [2021-11-17 01:51:19,364 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_buf_queue [2021-11-17 01:51:19,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 01:51:19,364 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2021-11-17 01:51:19,364 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2021-11-17 01:51:19,364 INFO L130 BoogieDeclarations]: Found specification of procedure set_frequency [2021-11-17 01:51:19,364 INFO L138 BoogieDeclarations]: Found implementation of procedure set_frequency [2021-11-17 01:51:19,365 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_mmap [2021-11-17 01:51:19,365 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_mmap [2021-11-17 01:51:19,365 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2021-11-17 01:51:19,365 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2021-11-17 01:51:19,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 01:51:19,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 01:51:19,365 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 01:51:19,365 INFO L130 BoogieDeclarations]: Found specification of procedure usb_transfer_stop [2021-11-17 01:51:19,365 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_transfer_stop [2021-11-17 01:51:19,366 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-11-17 01:51:19,366 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-11-17 01:51:19,366 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_frontend [2021-11-17 01:51:19,366 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_frontend [2021-11-17 01:51:19,366 INFO L130 BoogieDeclarations]: Found specification of procedure is_working [2021-11-17 01:51:19,366 INFO L138 BoogieDeclarations]: Found implementation of procedure is_working [2021-11-17 01:51:19,366 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-17 01:51:19,366 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-17 01:51:19,366 INFO L130 BoogieDeclarations]: Found specification of procedure pm_alsa_suspend [2021-11-17 01:51:19,367 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_alsa_suspend [2021-11-17 01:51:19,367 INFO L130 BoogieDeclarations]: Found specification of procedure fire_audio_urb [2021-11-17 01:51:19,367 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_audio_urb [2021-11-17 01:51:19,367 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-17 01:51:19,367 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-17 01:51:19,367 INFO L130 BoogieDeclarations]: Found specification of procedure start_video_stream [2021-11-17 01:51:19,367 INFO L138 BoogieDeclarations]: Found implementation of procedure start_video_stream [2021-11-17 01:51:19,367 INFO L130 BoogieDeclarations]: Found specification of procedure video_get_drvdata [2021-11-17 01:51:19,367 INFO L138 BoogieDeclarations]: Found implementation of procedure video_get_drvdata [2021-11-17 01:51:19,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 01:51:19,368 INFO L130 BoogieDeclarations]: Found specification of procedure get_audio_std [2021-11-17 01:51:19,368 INFO L138 BoogieDeclarations]: Found implementation of procedure get_audio_std [2021-11-17 01:51:19,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 01:51:19,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_poseidon [2021-11-17 01:51:19,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_poseidon [2021-11-17 01:51:19,368 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-17 01:51:19,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-17 01:51:19,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 01:51:19,369 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-17 01:51:19,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_poseidon [2021-11-17 01:51:19,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_poseidon [2021-11-17 01:51:19,369 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_capture_open [2021-11-17 01:51:19,369 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_capture_open [2021-11-17 01:51:19,369 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_signal_strength [2021-11-17 01:51:19,369 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_signal_strength [2021-11-17 01:51:19,369 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_release [2021-11-17 01:51:19,369 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_release [2021-11-17 01:51:19,369 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_open [2021-11-17 01:51:19,370 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_open [2021-11-17 01:51:19,370 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-17 01:51:19,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-17 01:51:19,370 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-11-17 01:51:19,370 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-11-17 01:51:19,370 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2021-11-17 01:51:19,370 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2021-11-17 01:51:19,370 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-11-17 01:51:19,370 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-11-17 01:51:19,371 INFO L130 BoogieDeclarations]: Found specification of procedure send_set_req [2021-11-17 01:51:19,371 INFO L138 BoogieDeclarations]: Found implementation of procedure send_set_req [2021-11-17 01:51:19,371 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-17 01:51:19,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-17 01:51:19,371 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_iolock [2021-11-17 01:51:19,371 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_iolock [2021-11-17 01:51:19,371 INFO L130 BoogieDeclarations]: Found specification of procedure init_copy [2021-11-17 01:51:19,371 INFO L138 BoogieDeclarations]: Found implementation of procedure init_copy [2021-11-17 01:51:19,372 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-11-17 01:51:19,372 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-11-17 01:51:19,372 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_bulk_urbs_generic [2021-11-17 01:51:19,372 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_bulk_urbs_generic [2021-11-17 01:51:19,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 01:51:19,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 01:51:19,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-17 01:51:19,372 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-17 01:51:19,372 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-17 01:51:19,373 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-17 01:51:19,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 01:51:19,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 01:51:19,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 01:51:19,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 01:51:19,373 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2021-11-17 01:51:19,373 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2021-11-17 01:51:19,373 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2021-11-17 01:51:19,373 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2021-11-17 01:51:19,373 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_pd_get_page [2021-11-17 01:51:19,374 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_pd_get_page [2021-11-17 01:51:19,374 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-17 01:51:19,374 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-17 01:51:19,374 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2021-11-17 01:51:19,374 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2021-11-17 01:51:19,374 INFO L130 BoogieDeclarations]: Found specification of procedure free_all_urb [2021-11-17 01:51:19,374 INFO L138 BoogieDeclarations]: Found implementation of procedure free_all_urb [2021-11-17 01:51:19,374 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release [2021-11-17 01:51:19,374 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release [2021-11-17 01:51:19,375 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_get_fe [2021-11-17 01:51:19,375 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_get_fe [2021-11-17 01:51:19,375 INFO L130 BoogieDeclarations]: Found specification of procedure pd_dvb_usb_device_cleanup [2021-11-17 01:51:19,375 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_dvb_usb_device_cleanup [2021-11-17 01:51:19,375 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_start_streaming [2021-11-17 01:51:19,375 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_start_streaming [2021-11-17 01:51:19,375 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-17 01:51:19,375 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-17 01:51:19,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-17 01:51:19,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-17 01:51:19,376 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_mmap_free [2021-11-17 01:51:19,376 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_mmap_free [2021-11-17 01:51:19,376 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-17 01:51:19,376 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-17 01:51:19,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 01:51:19,376 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 01:51:19,376 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_intf [2021-11-17 01:51:19,376 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_intf [2021-11-17 01:51:19,376 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-17 01:51:19,376 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-17 01:51:19,377 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-17 01:51:19,377 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-17 01:51:19,377 INFO L130 BoogieDeclarations]: Found specification of procedure pd_vidioc_s_tuner [2021-11-17 01:51:19,377 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_vidioc_s_tuner [2021-11-17 01:51:19,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 01:51:19,377 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-17 01:51:19,377 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-17 01:51:19,377 INFO L130 BoogieDeclarations]: Found specification of procedure set_std [2021-11-17 01:51:19,377 INFO L138 BoogieDeclarations]: Found implementation of procedure set_std [2021-11-17 01:51:19,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 01:51:19,378 INFO L130 BoogieDeclarations]: Found specification of procedure free_all_urb_generic [2021-11-17 01:51:19,378 INFO L138 BoogieDeclarations]: Found implementation of procedure free_all_urb_generic [2021-11-17 01:51:19,378 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_ts_bus_ctrl [2021-11-17 01:51:19,378 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_ts_bus_ctrl [2021-11-17 01:51:19,378 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_exit [2021-11-17 01:51:19,378 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_exit [2021-11-17 01:51:19,378 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fm_open [2021-11-17 01:51:19,378 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fm_open [2021-11-17 01:51:19,378 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2021-11-17 01:51:19,379 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2021-11-17 01:51:19,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 01:51:19,379 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-17 01:51:19,379 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-17 01:51:19,379 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_status [2021-11-17 01:51:19,379 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_status [2021-11-17 01:51:19,379 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_stop [2021-11-17 01:51:19,379 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_stop [2021-11-17 01:51:19,379 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-17 01:51:19,379 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-17 01:51:19,380 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fe_release [2021-11-17 01:51:19,380 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fe_release [2021-11-17 01:51:19,380 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-17 01:51:19,380 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-17 01:51:19,380 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-11-17 01:51:19,380 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-11-17 01:51:19,380 INFO L130 BoogieDeclarations]: Found specification of procedure get_pd [2021-11-17 01:51:19,380 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pd [2021-11-17 01:51:19,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-17 01:51:19,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-17 01:51:19,381 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_disconnect [2021-11-17 01:51:19,381 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_disconnect [2021-11-17 01:51:19,381 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_poll [2021-11-17 01:51:19,381 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_poll [2021-11-17 01:51:19,381 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-11-17 01:51:19,381 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-11-17 01:51:19,381 INFO L130 BoogieDeclarations]: Found specification of procedure send_get_req [2021-11-17 01:51:19,381 INFO L138 BoogieDeclarations]: Found implementation of procedure send_get_req [2021-11-17 01:51:19,381 INFO L130 BoogieDeclarations]: Found specification of procedure video_register_device [2021-11-17 01:51:19,382 INFO L138 BoogieDeclarations]: Found implementation of procedure video_register_device [2021-11-17 01:51:19,382 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_hw_capture_params [2021-11-17 01:51:19,382 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_hw_capture_params [2021-11-17 01:51:19,382 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-17 01:51:19,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-17 01:51:19,382 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_unc_blocks [2021-11-17 01:51:19,382 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_unc_blocks [2021-11-17 01:51:19,382 INFO L130 BoogieDeclarations]: Found specification of procedure audio_buf_free [2021-11-17 01:51:19,382 INFO L138 BoogieDeclarations]: Found implementation of procedure audio_buf_free [2021-11-17 01:51:19,382 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-17 01:51:19,383 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-17 01:51:19,383 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fe_get_tune_settings [2021-11-17 01:51:19,383 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fe_get_tune_settings [2021-11-17 01:51:19,383 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_set_fe [2021-11-17 01:51:19,383 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_set_fe [2021-11-17 01:51:19,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 01:51:19,383 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_hw_capture_free [2021-11-17 01:51:19,383 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_hw_capture_free [2021-11-17 01:51:19,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 01:51:19,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 01:51:19,384 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_resume [2021-11-17 01:51:19,384 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_resume [2021-11-17 01:51:19,384 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_checkmode [2021-11-17 01:51:19,384 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_checkmode [2021-11-17 01:51:19,384 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_input [2021-11-17 01:51:19,384 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_input [2021-11-17 01:51:19,384 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_lib_ioctl [2021-11-17 01:51:19,384 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_lib_ioctl [2021-11-17 01:51:19,384 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2021-11-17 01:51:19,385 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2021-11-17 01:51:19,385 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_queue_vmalloc_init [2021-11-17 01:51:19,385 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_queue_vmalloc_init [2021-11-17 01:51:19,385 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-17 01:51:19,385 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-17 01:51:19,385 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_free [2021-11-17 01:51:19,385 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_free [2021-11-17 01:51:19,385 INFO L130 BoogieDeclarations]: Found specification of procedure get_autopm_ref [2021-11-17 01:51:19,385 INFO L138 BoogieDeclarations]: Found implementation of procedure get_autopm_ref [2021-11-17 01:51:19,386 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fe_sleep [2021-11-17 01:51:19,386 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fe_sleep [2021-11-17 01:51:19,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2021-11-17 01:51:19,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2021-11-17 01:51:19,386 INFO L130 BoogieDeclarations]: Found specification of procedure pd_buf_setup [2021-11-17 01:51:19,386 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_buf_setup [2021-11-17 01:51:19,386 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_video_device [2021-11-17 01:51:19,386 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_video_device [2021-11-17 01:51:19,386 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_ber [2021-11-17 01:51:19,386 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_ber [2021-11-17 01:51:19,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 01:51:19,387 INFO L130 BoogieDeclarations]: Found specification of procedure set_debug_mode [2021-11-17 01:51:19,387 INFO L138 BoogieDeclarations]: Found implementation of procedure set_debug_mode [2021-11-17 01:51:19,387 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_prepare [2021-11-17 01:51:19,387 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_prepare [2021-11-17 01:51:20,170 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 01:51:20,172 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 01:51:26,875 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 01:55:29,194 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 01:55:29,226 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 01:55:29,229 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-17 01:55:29,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 01:55:29 BoogieIcfgContainer [2021-11-17 01:55:29,235 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 01:55:29,236 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 01:55:29,236 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 01:55:29,238 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 01:55:29,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 01:51:14" (1/3) ... [2021-11-17 01:55:29,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae07651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 01:55:29, skipping insertion in model container [2021-11-17 01:55:29,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:51:17" (2/3) ... [2021-11-17 01:55:29,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae07651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 01:55:29, skipping insertion in model container [2021-11-17 01:55:29,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 01:55:29" (3/3) ... [2021-11-17 01:55:29,240 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point.cil.out.i [2021-11-17 01:55:29,244 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 01:55:29,245 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-17 01:55:29,287 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 01:55:29,299 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-17 01:55:29,300 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-17 01:55:29,351 INFO L276 IsEmpty]: Start isEmpty. Operand has 2557 states, 1804 states have (on average 1.3752771618625277) internal successors, (2481), 1835 states have internal predecessors, (2481), 624 states have call successors, (624), 128 states have call predecessors, (624), 127 states have return successors, (611), 610 states have call predecessors, (611), 611 states have call successors, (611) [2021-11-17 01:55:29,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-17 01:55:29,358 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:55:29,359 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-17 01:55:29,360 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:55:29,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:55:29,367 INFO L85 PathProgramCache]: Analyzing trace with hash 224454618, now seen corresponding path program 1 times [2021-11-17 01:55:29,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:55:29,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053027729] [2021-11-17 01:55:29,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:55:29,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:55:29,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:55:30,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:55:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:55:30,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:55:30,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:55:30,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:55:30,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:55:30,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-17 01:55:30,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:55:30,314 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-17 01:55:30,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:55:30,315 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053027729] [2021-11-17 01:55:30,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053027729] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:55:30,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:55:30,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 01:55:30,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683770658] [2021-11-17 01:55:30,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:55:30,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 01:55:30,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:55:30,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 01:55:30,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 01:55:30,348 INFO L87 Difference]: Start difference. First operand has 2557 states, 1804 states have (on average 1.3752771618625277) internal successors, (2481), 1835 states have internal predecessors, (2481), 624 states have call successors, (624), 128 states have call predecessors, (624), 127 states have return successors, (611), 610 states have call predecessors, (611), 611 states have call successors, (611) Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-17 01:55:32,452 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:55:34,488 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:55:37,328 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:55:41,345 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:55:45,453 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:55:53,777 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:55:56,941 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:56:14,681 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:56:16,694 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:56:20,608 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:56:22,624 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:56:23,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:56:23,170 INFO L93 Difference]: Finished difference Result 8149 states and 12621 transitions. [2021-11-17 01:56:23,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 01:56:23,172 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 48 [2021-11-17 01:56:23,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:56:23,219 INFO L225 Difference]: With dead ends: 8149 [2021-11-17 01:56:23,220 INFO L226 Difference]: Without dead ends: 5560 [2021-11-17 01:56:23,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 01:56:23,237 INFO L933 BasicCegarLoop]: 4031 mSDtfsCounter, 5371 mSDsluCounter, 7052 mSDsCounter, 0 mSdLazyCounter, 3730 mSolverCounterSat, 3357 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5862 SdHoareTripleChecker+Valid, 11083 SdHoareTripleChecker+Invalid, 7098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3357 IncrementalHoareTripleChecker+Valid, 3730 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.7s IncrementalHoareTripleChecker+Time [2021-11-17 01:56:23,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5862 Valid, 11083 Invalid, 7098 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3357 Valid, 3730 Invalid, 11 Unknown, 0 Unchecked, 51.7s Time] [2021-11-17 01:56:23,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5560 states. [2021-11-17 01:56:23,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5560 to 4941. [2021-11-17 01:56:23,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4941 states, 3508 states have (on average 1.3697263397947548) internal successors, (4805), 3534 states have internal predecessors, (4805), 1181 states have call successors, (1181), 249 states have call predecessors, (1181), 251 states have return successors, (1187), 1171 states have call predecessors, (1187), 1173 states have call successors, (1187) [2021-11-17 01:56:23,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4941 states to 4941 states and 7173 transitions. [2021-11-17 01:56:23,582 INFO L78 Accepts]: Start accepts. Automaton has 4941 states and 7173 transitions. Word has length 48 [2021-11-17 01:56:23,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:56:23,583 INFO L470 AbstractCegarLoop]: Abstraction has 4941 states and 7173 transitions. [2021-11-17 01:56:23,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-17 01:56:23,583 INFO L276 IsEmpty]: Start isEmpty. Operand 4941 states and 7173 transitions. [2021-11-17 01:56:23,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-17 01:56:23,591 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:56:23,592 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-17 01:56:23,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 01:56:23,592 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:56:23,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:56:23,593 INFO L85 PathProgramCache]: Analyzing trace with hash 2094003673, now seen corresponding path program 1 times [2021-11-17 01:56:23,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:56:23,593 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575372734] [2021-11-17 01:56:23,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:56:23,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:56:23,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:56:24,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:56:24,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:56:24,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:56:24,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:56:24,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:56:24,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:56:24,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-17 01:56:24,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:56:24,225 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-17 01:56:24,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:56:24,226 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575372734] [2021-11-17 01:56:24,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575372734] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:56:24,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:56:24,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 01:56:24,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53023609] [2021-11-17 01:56:24,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:56:24,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 01:56:24,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:56:24,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 01:56:24,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 01:56:24,233 INFO L87 Difference]: Start difference. First operand 4941 states and 7173 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-17 01:56:26,323 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:56:28,489 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:56:30,519 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:56:33,665 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:56:38,353 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:56:42,265 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:56:50,983 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:56:55,226 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:56:59,318 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:57:16,696 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:57:18,718 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:57:21,712 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:57:23,846 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:57:27,187 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:57:29,193 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:57:29,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:57:29,996 INFO L93 Difference]: Finished difference Result 15802 states and 23399 transitions. [2021-11-17 01:57:29,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 01:57:29,997 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 49 [2021-11-17 01:57:29,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:57:30,056 INFO L225 Difference]: With dead ends: 15802 [2021-11-17 01:57:30,057 INFO L226 Difference]: Without dead ends: 10872 [2021-11-17 01:57:30,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 01:57:30,082 INFO L933 BasicCegarLoop]: 4041 mSDtfsCounter, 5256 mSDsluCounter, 7030 mSDsCounter, 0 mSdLazyCounter, 3731 mSolverCounterSat, 3270 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5738 SdHoareTripleChecker+Valid, 11071 SdHoareTripleChecker+Invalid, 7016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3270 IncrementalHoareTripleChecker+Valid, 3731 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 64.8s IncrementalHoareTripleChecker+Time [2021-11-17 01:57:30,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5738 Valid, 11071 Invalid, 7016 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3270 Valid, 3731 Invalid, 15 Unknown, 0 Unchecked, 64.8s Time] [2021-11-17 01:57:30,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10872 states. [2021-11-17 01:57:30,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10872 to 9677. [2021-11-17 01:57:30,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9677 states, 6889 states have (on average 1.3726230222093192) internal successors, (9456), 6927 states have internal predecessors, (9456), 2295 states have call successors, (2295), 490 states have call predecessors, (2295), 492 states have return successors, (2315), 2285 states have call predecessors, (2315), 2287 states have call successors, (2315) [2021-11-17 01:57:30,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9677 states to 9677 states and 14066 transitions. [2021-11-17 01:57:30,435 INFO L78 Accepts]: Start accepts. Automaton has 9677 states and 14066 transitions. Word has length 49 [2021-11-17 01:57:30,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:57:30,436 INFO L470 AbstractCegarLoop]: Abstraction has 9677 states and 14066 transitions. [2021-11-17 01:57:30,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-17 01:57:30,437 INFO L276 IsEmpty]: Start isEmpty. Operand 9677 states and 14066 transitions. [2021-11-17 01:57:30,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-17 01:57:30,440 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:57:30,440 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-17 01:57:30,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 01:57:30,441 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:57:30,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:57:30,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1474058379, now seen corresponding path program 1 times [2021-11-17 01:57:30,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:57:30,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244281941] [2021-11-17 01:57:30,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:57:30,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:57:30,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:57:30,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:57:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:57:30,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:57:30,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:57:30,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:57:30,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:57:30,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-17 01:57:30,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:57:30,994 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-17 01:57:30,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:57:30,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244281941] [2021-11-17 01:57:30,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244281941] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:57:30,995 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:57:30,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 01:57:30,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116090441] [2021-11-17 01:57:30,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:57:30,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 01:57:30,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:57:30,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 01:57:30,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 01:57:30,997 INFO L87 Difference]: Start difference. First operand 9677 states and 14066 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-17 01:57:33,082 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:57:35,182 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:57:39,173 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:57:43,122 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:57:47,288 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:57:56,873 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:58:00,367 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:58:20,569 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:58:22,600 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:58:26,816 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:58:28,856 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:58:29,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:58:29,535 INFO L93 Difference]: Finished difference Result 31177 states and 46139 transitions. [2021-11-17 01:58:29,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 01:58:29,536 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 51 [2021-11-17 01:58:29,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:58:29,632 INFO L225 Difference]: With dead ends: 31177 [2021-11-17 01:58:29,632 INFO L226 Difference]: Without dead ends: 21511 [2021-11-17 01:58:29,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 01:58:29,675 INFO L933 BasicCegarLoop]: 4028 mSDtfsCounter, 5294 mSDsluCounter, 7029 mSDsCounter, 0 mSdLazyCounter, 3704 mSolverCounterSat, 3284 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5780 SdHoareTripleChecker+Valid, 11057 SdHoareTripleChecker+Invalid, 6999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3284 IncrementalHoareTripleChecker+Valid, 3704 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 57.5s IncrementalHoareTripleChecker+Time [2021-11-17 01:58:29,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5780 Valid, 11057 Invalid, 6999 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3284 Valid, 3704 Invalid, 11 Unknown, 0 Unchecked, 57.5s Time] [2021-11-17 01:58:29,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21511 states. [2021-11-17 01:58:30,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21511 to 19111. [2021-11-17 01:58:30,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19111 states, 13619 states have (on average 1.3732285777222997) internal successors, (18702), 13681 states have internal predecessors, (18702), 4513 states have call successors, (4513), 976 states have call predecessors, (4513), 978 states have return successors, (4561), 4503 states have call predecessors, (4561), 4505 states have call successors, (4561) [2021-11-17 01:58:30,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19111 states to 19111 states and 27776 transitions. [2021-11-17 01:58:30,316 INFO L78 Accepts]: Start accepts. Automaton has 19111 states and 27776 transitions. Word has length 51 [2021-11-17 01:58:30,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:58:30,317 INFO L470 AbstractCegarLoop]: Abstraction has 19111 states and 27776 transitions. [2021-11-17 01:58:30,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-17 01:58:30,318 INFO L276 IsEmpty]: Start isEmpty. Operand 19111 states and 27776 transitions. [2021-11-17 01:58:30,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-17 01:58:30,320 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:58:30,321 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:58:30,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 01:58:30,321 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:58:30,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:58:30,321 INFO L85 PathProgramCache]: Analyzing trace with hash -906878664, now seen corresponding path program 1 times [2021-11-17 01:58:30,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:58:30,322 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720539332] [2021-11-17 01:58:30,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:58:30,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:58:30,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:58:30,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:58:30,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:58:30,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:58:30,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:58:30,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:58:30,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:58:30,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-17 01:58:30,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:58:30,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-17 01:58:30,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:58:30,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:58:30,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:58:30,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:58:30,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:58:30,957 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-17 01:58:30,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:58:30,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720539332] [2021-11-17 01:58:30,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720539332] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:58:30,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:58:30,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 01:58:30,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125882142] [2021-11-17 01:58:30,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:58:30,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 01:58:30,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:58:30,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 01:58:30,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 01:58:30,960 INFO L87 Difference]: Start difference. First operand 19111 states and 27776 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-17 01:58:33,039 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:58:35,070 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:58:39,786 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:58:44,386 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:58:50,600 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:59:04,317 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:59:08,531 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:59:21,484 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:59:23,583 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:59:25,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:59:25,871 INFO L93 Difference]: Finished difference Result 56633 states and 83919 transitions. [2021-11-17 01:59:25,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 01:59:25,872 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 71 [2021-11-17 01:59:25,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:59:26,024 INFO L225 Difference]: With dead ends: 56633 [2021-11-17 01:59:26,024 INFO L226 Difference]: Without dead ends: 37533 [2021-11-17 01:59:26,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-11-17 01:59:26,096 INFO L933 BasicCegarLoop]: 4633 mSDtfsCounter, 4490 mSDsluCounter, 7832 mSDsCounter, 0 mSdLazyCounter, 3697 mSolverCounterSat, 3512 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4916 SdHoareTripleChecker+Valid, 12465 SdHoareTripleChecker+Invalid, 7218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3512 IncrementalHoareTripleChecker+Valid, 3697 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.5s IncrementalHoareTripleChecker+Time [2021-11-17 01:59:26,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4916 Valid, 12465 Invalid, 7218 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3512 Valid, 3697 Invalid, 9 Unknown, 0 Unchecked, 53.5s Time] [2021-11-17 01:59:26,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37533 states. [2021-11-17 01:59:27,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37533 to 32943. [2021-11-17 01:59:27,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32943 states, 23687 states have (on average 1.3859923164605057) internal successors, (32830), 23757 states have internal predecessors, (32830), 7561 states have call successors, (7561), 1692 states have call predecessors, (7561), 1694 states have return successors, (7625), 7551 states have call predecessors, (7625), 7553 states have call successors, (7625) [2021-11-17 01:59:27,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32943 states to 32943 states and 48016 transitions. [2021-11-17 01:59:27,189 INFO L78 Accepts]: Start accepts. Automaton has 32943 states and 48016 transitions. Word has length 71 [2021-11-17 01:59:27,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:59:27,190 INFO L470 AbstractCegarLoop]: Abstraction has 32943 states and 48016 transitions. [2021-11-17 01:59:27,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-17 01:59:27,191 INFO L276 IsEmpty]: Start isEmpty. Operand 32943 states and 48016 transitions. [2021-11-17 01:59:27,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-17 01:59:27,194 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:59:27,194 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:59:27,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 01:59:27,194 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:59:27,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:59:27,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1456686164, now seen corresponding path program 1 times [2021-11-17 01:59:27,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:59:27,195 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136941132] [2021-11-17 01:59:27,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:59:27,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:59:27,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:59:27,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:59:27,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:59:27,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:59:27,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:59:27,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:59:27,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:59:27,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-17 01:59:27,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:59:27,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 01:59:27,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:59:27,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 01:59:27,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:59:27,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:59:27,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:59:27,887 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-17 01:59:27,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:59:27,888 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136941132] [2021-11-17 01:59:27,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136941132] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:59:27,888 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:59:27,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 01:59:27,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974808595] [2021-11-17 01:59:27,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:59:27,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 01:59:27,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:59:27,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 01:59:27,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 01:59:27,890 INFO L87 Difference]: Start difference. First operand 32943 states and 48016 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-17 01:59:29,993 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:59:32,049 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:59:34,073 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:59:39,468 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:59:43,730 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:59:46,507 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:59:51,796 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:00:07,358 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:00:10,952 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:00:26,295 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:00:28,308 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:00:30,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:00:30,264 INFO L93 Difference]: Finished difference Result 72474 states and 106411 transitions. [2021-11-17 02:00:30,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 02:00:30,265 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 67 [2021-11-17 02:00:30,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:00:30,424 INFO L225 Difference]: With dead ends: 72474 [2021-11-17 02:00:30,424 INFO L226 Difference]: Without dead ends: 39542 [2021-11-17 02:00:30,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 02:00:30,532 INFO L933 BasicCegarLoop]: 3573 mSDtfsCounter, 4076 mSDsluCounter, 5708 mSDsCounter, 0 mSdLazyCounter, 4095 mSolverCounterSat, 2006 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4414 SdHoareTripleChecker+Valid, 9281 SdHoareTripleChecker+Invalid, 6111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2006 IncrementalHoareTripleChecker+Valid, 4095 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.8s IncrementalHoareTripleChecker+Time [2021-11-17 02:00:30,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4414 Valid, 9281 Invalid, 6111 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2006 Valid, 4095 Invalid, 10 Unknown, 0 Unchecked, 60.8s Time] [2021-11-17 02:00:30,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39542 states. [2021-11-17 02:00:31,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39542 to 35102. [2021-11-17 02:00:31,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35102 states, 25237 states have (on average 1.3793636327614218) internal successors, (34811), 25313 states have internal predecessors, (34811), 7875 states have call successors, (7875), 1980 states have call predecessors, (7875), 1989 states have return successors, (7955), 7866 states have call predecessors, (7955), 7867 states have call successors, (7955) [2021-11-17 02:00:32,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35102 states to 35102 states and 50641 transitions. [2021-11-17 02:00:32,022 INFO L78 Accepts]: Start accepts. Automaton has 35102 states and 50641 transitions. Word has length 67 [2021-11-17 02:00:32,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:00:32,025 INFO L470 AbstractCegarLoop]: Abstraction has 35102 states and 50641 transitions. [2021-11-17 02:00:32,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-17 02:00:32,025 INFO L276 IsEmpty]: Start isEmpty. Operand 35102 states and 50641 transitions. [2021-11-17 02:00:32,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-17 02:00:32,028 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:00:32,028 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:00:32,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 02:00:32,029 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:00:32,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:00:32,029 INFO L85 PathProgramCache]: Analyzing trace with hash -2088443821, now seen corresponding path program 1 times [2021-11-17 02:00:32,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:00:32,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897074274] [2021-11-17 02:00:32,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:00:32,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:00:32,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:00:32,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:00:32,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:00:32,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 02:00:32,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:00:32,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 02:00:32,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:00:32,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-17 02:00:32,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:00:32,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 02:00:32,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:00:32,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 02:00:32,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:00:32,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:00:32,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:00:32,768 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-17 02:00:32,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:00:32,769 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897074274] [2021-11-17 02:00:32,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897074274] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:00:32,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:00:32,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 02:00:32,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456512076] [2021-11-17 02:00:32,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:00:32,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 02:00:32,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:00:32,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 02:00:32,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 02:00:32,771 INFO L87 Difference]: Start difference. First operand 35102 states and 50641 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-17 02:00:34,872 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:00:36,990 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:00:39,169 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:00:41,221 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:00:46,877 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:00:52,038 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:00:57,615 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:01:12,235 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:01:15,469 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:01:29,800 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:01:31,809 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:01:33,827 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:01:35,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:01:35,723 INFO L93 Difference]: Finished difference Result 74595 states and 108906 transitions. [2021-11-17 02:01:35,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 02:01:35,724 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2021-11-17 02:01:35,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:01:35,889 INFO L225 Difference]: With dead ends: 74595 [2021-11-17 02:01:35,889 INFO L226 Difference]: Without dead ends: 39511 [2021-11-17 02:01:36,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 02:01:36,072 INFO L933 BasicCegarLoop]: 3517 mSDtfsCounter, 4403 mSDsluCounter, 5012 mSDsCounter, 0 mSdLazyCounter, 3806 mSolverCounterSat, 1966 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4840 SdHoareTripleChecker+Valid, 8529 SdHoareTripleChecker+Invalid, 5784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1966 IncrementalHoareTripleChecker+Valid, 3806 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.0s IncrementalHoareTripleChecker+Time [2021-11-17 02:01:36,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4840 Valid, 8529 Invalid, 5784 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1966 Valid, 3806 Invalid, 12 Unknown, 0 Unchecked, 61.0s Time] [2021-11-17 02:01:36,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39511 states. [2021-11-17 02:01:37,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39511 to 35102. [2021-11-17 02:01:37,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35102 states, 25241 states have (on average 1.3795412226140011) internal successors, (34821), 25315 states have internal predecessors, (34821), 7864 states have call successors, (7864), 1988 states have call predecessors, (7864), 1996 states have return successors, (7944), 7856 states have call predecessors, (7944), 7856 states have call successors, (7944) [2021-11-17 02:01:37,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35102 states to 35102 states and 50629 transitions. [2021-11-17 02:01:37,228 INFO L78 Accepts]: Start accepts. Automaton has 35102 states and 50629 transitions. Word has length 68 [2021-11-17 02:01:37,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:01:37,228 INFO L470 AbstractCegarLoop]: Abstraction has 35102 states and 50629 transitions. [2021-11-17 02:01:37,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-17 02:01:37,230 INFO L276 IsEmpty]: Start isEmpty. Operand 35102 states and 50629 transitions. [2021-11-17 02:01:37,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-17 02:01:37,234 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:01:37,234 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:01:37,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 02:01:37,235 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:01:37,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:01:37,235 INFO L85 PathProgramCache]: Analyzing trace with hash -318318793, now seen corresponding path program 1 times [2021-11-17 02:01:37,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:01:37,236 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797923465] [2021-11-17 02:01:37,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:01:37,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:01:37,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:01:37,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:01:37,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:01:37,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 02:01:37,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:01:37,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 02:01:37,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:01:37,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-17 02:01:37,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:01:37,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 02:01:37,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:01:38,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 02:01:38,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:01:38,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:01:38,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:01:38,072 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-17 02:01:38,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:01:38,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797923465] [2021-11-17 02:01:38,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797923465] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:01:38,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:01:38,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 02:01:38,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322463837] [2021-11-17 02:01:38,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:01:38,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 02:01:38,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:01:38,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 02:01:38,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 02:01:38,074 INFO L87 Difference]: Start difference. First operand 35102 states and 50629 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-17 02:01:40,152 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:01:42,202 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:01:44,278 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:01:48,822 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:01:51,387 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:01:56,502 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:02:02,187 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:02:16,440 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:02:18,623 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:02:20,648 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:02:22,683 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:02:35,981 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:02:38,005 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:02:39,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:02:39,739 INFO L93 Difference]: Finished difference Result 39481 states and 58241 transitions. [2021-11-17 02:02:39,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 02:02:39,740 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2021-11-17 02:02:39,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:02:39,910 INFO L225 Difference]: With dead ends: 39481 [2021-11-17 02:02:39,911 INFO L226 Difference]: Without dead ends: 39478 [2021-11-17 02:02:39,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 02:02:39,934 INFO L933 BasicCegarLoop]: 3499 mSDtfsCounter, 4309 mSDsluCounter, 4866 mSDsCounter, 0 mSdLazyCounter, 3725 mSolverCounterSat, 1905 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4743 SdHoareTripleChecker+Valid, 8365 SdHoareTripleChecker+Invalid, 5642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1905 IncrementalHoareTripleChecker+Valid, 3725 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.2s IncrementalHoareTripleChecker+Time [2021-11-17 02:02:39,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4743 Valid, 8365 Invalid, 5642 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1905 Valid, 3725 Invalid, 12 Unknown, 0 Unchecked, 60.2s Time] [2021-11-17 02:02:39,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39478 states. [2021-11-17 02:02:40,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39478 to 35101. [2021-11-17 02:02:40,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35101 states, 25241 states have (on average 1.3795016045323085) internal successors, (34820), 25314 states have internal predecessors, (34820), 7863 states have call successors, (7863), 1988 states have call predecessors, (7863), 1996 states have return successors, (7944), 7856 states have call predecessors, (7944), 7856 states have call successors, (7944) [2021-11-17 02:02:41,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35101 states to 35101 states and 50627 transitions. [2021-11-17 02:02:41,069 INFO L78 Accepts]: Start accepts. Automaton has 35101 states and 50627 transitions. Word has length 69 [2021-11-17 02:02:41,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:02:41,070 INFO L470 AbstractCegarLoop]: Abstraction has 35101 states and 50627 transitions. [2021-11-17 02:02:41,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-17 02:02:41,070 INFO L276 IsEmpty]: Start isEmpty. Operand 35101 states and 50627 transitions. [2021-11-17 02:02:41,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-17 02:02:41,072 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:02:41,072 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:02:41,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 02:02:41,072 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:02:41,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:02:41,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1279012906, now seen corresponding path program 1 times [2021-11-17 02:02:41,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:02:41,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683939490] [2021-11-17 02:02:41,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:02:41,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:02:41,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:41,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:02:41,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:41,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 02:02:41,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:41,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 02:02:41,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:41,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-17 02:02:41,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:41,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 02:02:41,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:41,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 02:02:41,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:42,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:02:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:02:42,117 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-17 02:02:42,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:02:42,117 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683939490] [2021-11-17 02:02:42,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683939490] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:02:42,117 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:02:42,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 02:02:42,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579122776] [2021-11-17 02:02:42,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:02:42,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 02:02:42,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:02:42,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 02:02:42,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 02:02:42,119 INFO L87 Difference]: Start difference. First operand 35101 states and 50627 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-17 02:02:44,259 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:02:46,297 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:02:48,375 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:02:52,687 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:02:56,541 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:03:00,751 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:03:10,077 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:03:12,828 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:03:22,876 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:03:24,901 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:03:26,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:03:26,098 INFO L93 Difference]: Finished difference Result 39484 states and 58242 transitions. [2021-11-17 02:03:26,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 02:03:26,099 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 70 [2021-11-17 02:03:26,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:03:26,228 INFO L225 Difference]: With dead ends: 39484 [2021-11-17 02:03:26,228 INFO L226 Difference]: Without dead ends: 39481 [2021-11-17 02:03:26,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 02:03:26,246 INFO L933 BasicCegarLoop]: 3519 mSDtfsCounter, 4873 mSDsluCounter, 3754 mSDsCounter, 0 mSdLazyCounter, 2242 mSolverCounterSat, 2690 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5302 SdHoareTripleChecker+Valid, 7273 SdHoareTripleChecker+Invalid, 4942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2690 IncrementalHoareTripleChecker+Valid, 2242 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.5s IncrementalHoareTripleChecker+Time [2021-11-17 02:03:26,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5302 Valid, 7273 Invalid, 4942 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2690 Valid, 2242 Invalid, 10 Unknown, 0 Unchecked, 42.5s Time] [2021-11-17 02:03:26,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39481 states. [2021-11-17 02:03:27,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39481 to 35100. [2021-11-17 02:03:27,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35100 states, 25241 states have (on average 1.3794619864506161) internal successors, (34819), 25313 states have internal predecessors, (34819), 7862 states have call successors, (7862), 1988 states have call predecessors, (7862), 1996 states have return successors, (7944), 7856 states have call predecessors, (7944), 7856 states have call successors, (7944) [2021-11-17 02:03:27,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35100 states to 35100 states and 50625 transitions. [2021-11-17 02:03:27,509 INFO L78 Accepts]: Start accepts. Automaton has 35100 states and 50625 transitions. Word has length 70 [2021-11-17 02:03:27,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:03:27,510 INFO L470 AbstractCegarLoop]: Abstraction has 35100 states and 50625 transitions. [2021-11-17 02:03:27,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-17 02:03:27,510 INFO L276 IsEmpty]: Start isEmpty. Operand 35100 states and 50625 transitions. [2021-11-17 02:03:27,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-17 02:03:27,532 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:03:27,532 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:03:27,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 02:03:27,533 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:03:27,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:03:27,533 INFO L85 PathProgramCache]: Analyzing trace with hash -995754470, now seen corresponding path program 1 times [2021-11-17 02:03:27,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:03:27,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664285879] [2021-11-17 02:03:27,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:03:27,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:03:27,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:28,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:03:28,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:28,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 02:03:28,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:28,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 02:03:28,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:28,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-17 02:03:28,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:28,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 02:03:28,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:28,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 02:03:28,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:28,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 02:03:28,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:03:28,323 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-17 02:03:28,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:03:28,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664285879] [2021-11-17 02:03:28,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664285879] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:03:28,324 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:03:28,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 02:03:28,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264210029] [2021-11-17 02:03:28,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:03:28,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 02:03:28,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:03:28,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 02:03:28,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 02:03:28,325 INFO L87 Difference]: Start difference. First operand 35100 states and 50625 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-17 02:03:30,407 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:03:32,446 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:03:34,482 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:03:38,665 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:03:42,458 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:03:46,598 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:03:55,954 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:03:58,742 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:04:08,487 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:04:10,533 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:04:13,183 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:04:15,334 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:04:15,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 02:04:16,000 INFO L93 Difference]: Finished difference Result 39483 states and 58240 transitions. [2021-11-17 02:04:16,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 02:04:16,000 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), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 71 [2021-11-17 02:04:16,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 02:04:16,135 INFO L225 Difference]: With dead ends: 39483 [2021-11-17 02:04:16,135 INFO L226 Difference]: Without dead ends: 39470 [2021-11-17 02:04:16,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 02:04:16,160 INFO L933 BasicCegarLoop]: 3513 mSDtfsCounter, 4874 mSDsluCounter, 3740 mSDsCounter, 0 mSdLazyCounter, 2231 mSolverCounterSat, 2681 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5311 SdHoareTripleChecker+Valid, 7253 SdHoareTripleChecker+Invalid, 4924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2681 IncrementalHoareTripleChecker+Valid, 2231 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.0s IncrementalHoareTripleChecker+Time [2021-11-17 02:04:16,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5311 Valid, 7253 Invalid, 4924 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2681 Valid, 2231 Invalid, 12 Unknown, 0 Unchecked, 46.0s Time] [2021-11-17 02:04:16,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39470 states. [2021-11-17 02:04:17,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39470 to 35089. [2021-11-17 02:04:17,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35089 states, 25231 states have (on average 1.3791367761880227) internal successors, (34797), 25302 states have internal predecessors, (34797), 7861 states have call successors, (7861), 1988 states have call predecessors, (7861), 1996 states have return successors, (7944), 7856 states have call predecessors, (7944), 7856 states have call successors, (7944) [2021-11-17 02:04:17,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35089 states to 35089 states and 50602 transitions. [2021-11-17 02:04:17,453 INFO L78 Accepts]: Start accepts. Automaton has 35089 states and 50602 transitions. Word has length 71 [2021-11-17 02:04:17,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 02:04:17,453 INFO L470 AbstractCegarLoop]: Abstraction has 35089 states and 50602 transitions. [2021-11-17 02:04:17,453 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), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-17 02:04:17,453 INFO L276 IsEmpty]: Start isEmpty. Operand 35089 states and 50602 transitions. [2021-11-17 02:04:17,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-17 02:04:17,456 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 02:04:17,456 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 02:04:17,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 02:04:17,457 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 02:04:17,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 02:04:17,457 INFO L85 PathProgramCache]: Analyzing trace with hash 387886993, now seen corresponding path program 1 times [2021-11-17 02:04:17,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 02:04:17,457 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976780032] [2021-11-17 02:04:17,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 02:04:17,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 02:04:17,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:04:17,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 02:04:17,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:04:17,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 02:04:17,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:04:17,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 02:04:17,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:04:18,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-17 02:04:18,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:04:18,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-17 02:04:18,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:04:18,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 02:04:18,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:04:18,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 02:04:18,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:04:18,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-17 02:04:18,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:04:18,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-11-17 02:04:18,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:04:18,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 02:04:18,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:04:18,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 02:04:18,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:04:18,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 02:04:18,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 02:04:18,189 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-17 02:04:18,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 02:04:18,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976780032] [2021-11-17 02:04:18,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976780032] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 02:04:18,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 02:04:18,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 02:04:18,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518411271] [2021-11-17 02:04:18,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 02:04:18,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 02:04:18,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 02:04:18,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 02:04:18,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 02:04:18,191 INFO L87 Difference]: Start difference. First operand 35089 states and 50602 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, (15), 5 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-17 02:04:20,275 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:04:22,365 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:04:24,399 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:04:28,906 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:04:33,804 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:04:39,181 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:04:51,207 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:05:09,955 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 02:05:25,564 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15