./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--serial--usbserial.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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--serial--usbserial.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 267df3d840ee451a69f2c9c23fc4c286b307e31eb8c416518f7dce9b4c82858a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 03:10:04,505 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 03:10:04,539 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 03:10:04,590 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 03:10:04,591 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 03:10:04,594 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 03:10:04,595 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 03:10:04,597 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 03:10:04,599 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 03:10:04,602 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 03:10:04,603 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 03:10:04,605 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 03:10:04,605 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 03:10:04,607 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 03:10:04,608 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 03:10:04,612 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 03:10:04,615 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 03:10:04,615 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 03:10:04,616 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 03:10:04,619 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 03:10:04,621 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 03:10:04,622 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 03:10:04,624 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 03:10:04,624 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 03:10:04,630 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 03:10:04,632 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 03:10:04,632 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 03:10:04,632 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 03:10:04,633 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 03:10:04,634 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 03:10:04,634 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 03:10:04,635 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 03:10:04,636 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 03:10:04,637 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 03:10:04,638 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 03:10:04,638 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 03:10:04,640 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 03:10:04,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 03:10:04,640 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 03:10:04,641 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 03:10:04,641 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 03:10:04,642 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 03:10:04,671 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 03:10:04,672 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 03:10:04,672 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 03:10:04,672 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 03:10:04,673 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 03:10:04,673 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 03:10:04,674 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 03:10:04,674 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 03:10:04,674 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 03:10:04,674 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 03:10:04,675 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 03:10:04,675 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 03:10:04,676 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 03:10:04,676 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 03:10:04,676 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 03:10:04,676 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 03:10:04,676 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 03:10:04,676 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 03:10:04,677 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 03:10:04,677 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 03:10:04,677 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 03:10:04,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 03:10:04,677 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 03:10:04,678 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 03:10:04,678 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 03:10:04,678 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 03:10:04,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 03:10:04,678 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 03:10:04,679 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 03:10:04,679 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 03:10:04,683 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 03:10:04,683 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 267df3d840ee451a69f2c9c23fc4c286b307e31eb8c416518f7dce9b4c82858a [2021-11-17 03:10:04,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 03:10:04,910 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 03:10:04,912 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 03:10:04,914 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 03:10:04,914 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 03:10:04,915 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2021-11-17 03:10:04,983 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15c96086e/1b5fed2f572b499c9d329809466783ee/FLAG11a0baacd [2021-11-17 03:10:05,612 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 03:10:05,613 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2021-11-17 03:10:05,646 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15c96086e/1b5fed2f572b499c9d329809466783ee/FLAG11a0baacd [2021-11-17 03:10:05,990 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15c96086e/1b5fed2f572b499c9d329809466783ee [2021-11-17 03:10:05,992 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 03:10:05,994 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 03:10:05,995 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 03:10:05,995 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 03:10:05,998 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 03:10:05,998 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:10:05" (1/1) ... [2021-11-17 03:10:05,999 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e0f116c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:05, skipping insertion in model container [2021-11-17 03:10:05,999 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:10:05" (1/1) ... [2021-11-17 03:10:06,005 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 03:10:06,127 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 03:10:08,024 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[313744,313757] [2021-11-17 03:10:08,064 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 03:10:08,133 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 03:10:08,526 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[313744,313757] [2021-11-17 03:10:08,533 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 03:10:08,695 INFO L208 MainTranslator]: Completed translation [2021-11-17 03:10:08,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:08 WrapperNode [2021-11-17 03:10:08,698 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 03:10:08,699 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 03:10:08,699 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 03:10:08,699 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 03:10:08,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:08" (1/1) ... [2021-11-17 03:10:08,824 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:08" (1/1) ... [2021-11-17 03:10:09,092 INFO L137 Inliner]: procedures = 388, calls = 3920, calls flagged for inlining = 190, calls inlined = 187, statements flattened = 7890 [2021-11-17 03:10:09,094 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 03:10:09,095 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 03:10:09,096 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 03:10:09,096 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 03:10:09,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:08" (1/1) ... [2021-11-17 03:10:09,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:08" (1/1) ... [2021-11-17 03:10:09,170 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:08" (1/1) ... [2021-11-17 03:10:09,171 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:08" (1/1) ... [2021-11-17 03:10:09,316 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:08" (1/1) ... [2021-11-17 03:10:09,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:08" (1/1) ... [2021-11-17 03:10:09,390 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:08" (1/1) ... [2021-11-17 03:10:09,429 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 03:10:09,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 03:10:09,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 03:10:09,431 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 03:10:09,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:08" (1/1) ... [2021-11-17 03:10:09,438 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 03:10:09,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 03:10:09,457 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 03:10:09,469 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 03:10:09,503 INFO L130 BoogieDeclarations]: Found specification of procedure serial_proc_open [2021-11-17 03:10:09,503 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_proc_open [2021-11-17 03:10:09,503 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_throttle [2021-11-17 03:10:09,503 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_throttle [2021-11-17 03:10:09,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2021-11-17 03:10:09,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2021-11-17 03:10:09,504 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-11-17 03:10:09,504 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-11-17 03:10:09,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 03:10:09,504 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 03:10:09,505 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2021-11-17 03:10:09,505 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2021-11-17 03:10:09,505 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_dtr_rts [2021-11-17 03:10:09,505 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_dtr_rts [2021-11-17 03:10:09,505 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_remove [2021-11-17 03:10:09,505 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_remove [2021-11-17 03:10:09,505 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-17 03:10:09,506 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-17 03:10:09,506 INFO L130 BoogieDeclarations]: Found specification of procedure serial_chars_in_buffer [2021-11-17 03:10:09,506 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_chars_in_buffer [2021-11-17 03:10:09,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 03:10:09,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 03:10:09,506 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2021-11-17 03:10:09,507 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2021-11-17 03:10:09,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_5 [2021-11-17 03:10:09,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_5 [2021-11-17 03:10:09,507 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_activate [2021-11-17 03:10:09,507 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_activate [2021-11-17 03:10:09,507 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit_unlock [2021-11-17 03:10:09,508 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit_unlock [2021-11-17 03:10:09,508 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-11-17 03:10:09,508 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-11-17 03:10:09,508 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2021-11-17 03:10:09,508 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2021-11-17 03:10:09,508 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister_drivers [2021-11-17 03:10:09,508 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister_drivers [2021-11-17 03:10:09,509 INFO L130 BoogieDeclarations]: Found specification of procedure usb_store_new_id [2021-11-17 03:10:09,509 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_store_new_id [2021-11-17 03:10:09,509 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2021-11-17 03:10:09,509 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2021-11-17 03:10:09,510 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_work [2021-11-17 03:10:09,510 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_work [2021-11-17 03:10:09,510 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-17 03:10:09,510 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-17 03:10:09,510 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_poison_urbs [2021-11-17 03:10:09,511 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_poison_urbs [2021-11-17 03:10:09,511 INFO L130 BoogieDeclarations]: Found specification of procedure serial_hangup [2021-11-17 03:10:09,511 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_hangup [2021-11-17 03:10:09,511 INFO L130 BoogieDeclarations]: Found specification of procedure serial_ioctl [2021-11-17 03:10:09,511 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_ioctl [2021-11-17 03:10:09,511 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write_room [2021-11-17 03:10:09,511 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write_room [2021-11-17 03:10:09,512 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-17 03:10:09,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-17 03:10:09,512 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-17 03:10:09,512 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-17 03:10:09,513 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unpoison_urb [2021-11-17 03:10:09,514 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unpoison_urb [2021-11-17 03:10:09,514 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_probe [2021-11-17 03:10:09,514 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_probe [2021-11-17 03:10:09,514 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-17 03:10:09,514 INFO L130 BoogieDeclarations]: Found specification of procedure serial_get_icount [2021-11-17 03:10:09,515 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_get_icount [2021-11-17 03:10:09,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 03:10:09,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 03:10:09,515 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-17 03:10:09,515 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-17 03:10:09,515 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urb [2021-11-17 03:10:09,515 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urb [2021-11-17 03:10:09,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 03:10:09,516 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-17 03:10:09,516 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-17 03:10:09,517 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2021-11-17 03:10:09,517 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2021-11-17 03:10:09,517 INFO L130 BoogieDeclarations]: Found specification of procedure serial_cleanup [2021-11-17 03:10:09,517 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_cleanup [2021-11-17 03:10:09,517 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-17 03:10:09,517 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-17 03:10:09,517 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_carrier_raised [2021-11-17 03:10:09,518 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_carrier_raised [2021-11-17 03:10:09,518 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2021-11-17 03:10:09,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2021-11-17 03:10:09,518 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-17 03:10:09,518 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-17 03:10:09,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 03:10:09,519 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2021-11-17 03:10:09,519 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2021-11-17 03:10:09,519 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-17 03:10:09,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-17 03:10:09,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 03:10:09,520 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_reset_resume [2021-11-17 03:10:09,520 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_reset_resume [2021-11-17 03:10:09,520 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_read_bulk_callback [2021-11-17 03:10:09,520 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_read_bulk_callback [2021-11-17 03:10:09,521 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2021-11-17 03:10:09,521 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2021-11-17 03:10:09,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 03:10:09,521 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-11-17 03:10:09,521 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-11-17 03:10:09,522 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_shutdown [2021-11-17 03:10:09,522 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_shutdown [2021-11-17 03:10:09,522 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2021-11-17 03:10:09,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2021-11-17 03:10:09,523 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-17 03:10:09,523 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-17 03:10:09,523 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2021-11-17 03:10:09,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2021-11-17 03:10:09,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-17 03:10:09,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-17 03:10:09,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 03:10:09,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 03:10:09,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 03:10:09,524 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-17 03:10:09,525 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 03:10:09,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 03:10:09,525 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-17 03:10:09,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-17 03:10:09,525 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2021-11-17 03:10:09,526 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2021-11-17 03:10:09,528 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-11-17 03:10:09,528 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-11-17 03:10:09,528 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_put [2021-11-17 03:10:09,529 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_put [2021-11-17 03:10:09,530 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-17 03:10:09,530 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-17 03:10:09,530 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_serial [2021-11-17 03:10:09,530 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_serial [2021-11-17 03:10:09,531 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-17 03:10:09,536 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-17 03:10:09,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 03:10:09,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 03:10:09,537 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2021-11-17 03:10:09,537 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2021-11-17 03:10:09,537 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-17 03:10:09,537 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-17 03:10:09,537 INFO L130 BoogieDeclarations]: Found specification of procedure serial_break [2021-11-17 03:10:09,537 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_break [2021-11-17 03:10:09,537 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_start [2021-11-17 03:10:09,538 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_start [2021-11-17 03:10:09,538 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-11-17 03:10:09,538 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-11-17 03:10:09,538 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-11-17 03:10:09,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-11-17 03:10:09,539 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-17 03:10:09,539 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-17 03:10:09,539 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2021-11-17 03:10:09,539 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2021-11-17 03:10:09,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 03:10:09,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 03:10:09,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 03:10:09,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 03:10:09,540 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_show [2021-11-17 03:10:09,540 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_show [2021-11-17 03:10:09,540 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write [2021-11-17 03:10:09,540 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write [2021-11-17 03:10:09,540 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-11-17 03:10:09,540 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-11-17 03:10:09,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-11-17 03:10:09,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-11-17 03:10:09,541 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-17 03:10:09,541 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-17 03:10:09,541 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-11-17 03:10:09,541 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-11-17 03:10:09,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-17 03:10:09,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-17 03:10:09,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2021-11-17 03:10:09,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2021-11-17 03:10:09,542 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2021-11-17 03:10:09,542 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2021-11-17 03:10:09,542 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_msr_changed [2021-11-17 03:10:09,542 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_msr_changed [2021-11-17 03:10:09,542 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2021-11-17 03:10:09,543 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2021-11-17 03:10:09,543 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-17 03:10:09,543 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-17 03:10:09,543 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_store [2021-11-17 03:10:09,543 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_store [2021-11-17 03:10:09,543 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2021-11-17 03:10:09,543 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2021-11-17 03:10:09,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 03:10:09,544 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-17 03:10:09,544 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-17 03:10:09,544 INFO L130 BoogieDeclarations]: Found specification of procedure serial_unthrottle [2021-11-17 03:10:09,544 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_unthrottle [2021-11-17 03:10:09,544 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urbs [2021-11-17 03:10:09,544 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urbs [2021-11-17 03:10:09,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 03:10:09,545 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-11-17 03:10:09,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-11-17 03:10:09,545 INFO L130 BoogieDeclarations]: Found specification of procedure serial_throttle [2021-11-17 03:10:09,545 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_throttle [2021-11-17 03:10:09,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 03:10:09,545 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2021-11-17 03:10:09,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2021-11-17 03:10:09,546 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2021-11-17 03:10:09,546 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2021-11-17 03:10:09,546 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-17 03:10:09,546 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-17 03:10:09,546 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_resume [2021-11-17 03:10:09,546 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_resume [2021-11-17 03:10:09,547 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-11-17 03:10:09,547 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-11-17 03:10:09,547 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-17 03:10:09,547 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-17 03:10:09,547 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-17 03:10:09,547 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-17 03:10:09,547 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_softint [2021-11-17 03:10:09,548 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_softint [2021-11-17 03:10:09,548 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmget [2021-11-17 03:10:09,548 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmget [2021-11-17 03:10:09,548 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-11-17 03:10:09,548 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-11-17 03:10:09,548 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-11-17 03:10:09,548 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-11-17 03:10:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure bus_unregister [2021-11-17 03:10:09,549 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_unregister [2021-11-17 03:10:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2021-11-17 03:10:09,549 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2021-11-17 03:10:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2021-11-17 03:10:09,549 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2021-11-17 03:10:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2021-11-17 03:10:09,549 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2021-11-17 03:10:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure serial_wait_until_sent [2021-11-17 03:10:09,550 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_wait_until_sent [2021-11-17 03:10:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-17 03:10:09,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-17 03:10:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_match [2021-11-17 03:10:09,550 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_match [2021-11-17 03:10:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure serial_open [2021-11-17 03:10:09,551 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_open [2021-11-17 03:10:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-17 03:10:09,551 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-17 03:10:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2021-11-17 03:10:09,551 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2021-11-17 03:10:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-17 03:10:09,551 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-17 03:10:09,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 03:10:09,552 INFO L130 BoogieDeclarations]: Found specification of procedure serial_set_termios [2021-11-17 03:10:09,552 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_set_termios [2021-11-17 03:10:09,552 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2021-11-17 03:10:09,552 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2021-11-17 03:10:09,552 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2021-11-17 03:10:09,552 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2021-11-17 03:10:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 03:10:09,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 03:10:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2021-11-17 03:10:09,556 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2021-11-17 03:10:09,556 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_unthrottle [2021-11-17 03:10:09,556 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_unthrottle [2021-11-17 03:10:09,557 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_get_by_minor [2021-11-17 03:10:09,557 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_get_by_minor [2021-11-17 03:10:09,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-17 03:10:09,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-17 03:10:09,557 INFO L130 BoogieDeclarations]: Found specification of procedure serial_install [2021-11-17 03:10:09,557 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_install [2021-11-17 03:10:09,558 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_handle_sysrq_char [2021-11-17 03:10:09,558 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_handle_sysrq_char [2021-11-17 03:10:09,559 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmset [2021-11-17 03:10:09,559 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmset [2021-11-17 03:10:09,559 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-17 03:10:09,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-17 03:10:09,559 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_unpoison_port_urbs [2021-11-17 03:10:09,559 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_unpoison_port_urbs [2021-11-17 03:10:09,559 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write [2021-11-17 03:10:09,560 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write [2021-11-17 03:10:09,560 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2021-11-17 03:10:09,560 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2021-11-17 03:10:09,560 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-17 03:10:09,560 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-17 03:10:09,560 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-17 03:10:09,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-17 03:10:09,560 INFO L130 BoogieDeclarations]: Found specification of procedure get_iface_id [2021-11-17 03:10:09,561 INFO L138 BoogieDeclarations]: Found implementation of procedure get_iface_id [2021-11-17 03:10:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 03:10:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2021-11-17 03:10:09,561 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2021-11-17 03:10:10,431 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 03:10:10,433 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 03:10:10,760 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 03:10:21,940 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 03:10:21,955 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 03:10:21,956 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-17 03:10:21,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:10:21 BoogieIcfgContainer [2021-11-17 03:10:21,960 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 03:10:21,961 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 03:10:21,962 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 03:10:21,965 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 03:10:21,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:10:05" (1/3) ... [2021-11-17 03:10:21,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e17eedb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:10:21, skipping insertion in model container [2021-11-17 03:10:21,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:08" (2/3) ... [2021-11-17 03:10:21,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e17eedb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:10:21, skipping insertion in model container [2021-11-17 03:10:21,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:10:21" (3/3) ... [2021-11-17 03:10:21,967 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2021-11-17 03:10:21,971 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 03:10:21,971 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-17 03:10:22,027 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 03:10:22,039 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 03:10:22,039 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-17 03:10:22,094 INFO L276 IsEmpty]: Start isEmpty. Operand has 2348 states, 1698 states have (on average 1.3468786808009423) internal successors, (2287), 1734 states have internal predecessors, (2287), 520 states have call successors, (520), 129 states have call predecessors, (520), 128 states have return successors, (509), 496 states have call predecessors, (509), 509 states have call successors, (509) [2021-11-17 03:10:22,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2021-11-17 03:10:22,146 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:10:22,147 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:10:22,148 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:10:22,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:10:22,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1536291652, now seen corresponding path program 1 times [2021-11-17 03:10:22,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:10:22,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313934521] [2021-11-17 03:10:22,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:10:22,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:10:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:22,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:10:22,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:22,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:10:22,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:22,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:10:22,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:22,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:10:22,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:22,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:10:22,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:22,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:10:22,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:22,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:10:22,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:22,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:10:22,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:22,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:10:22,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:22,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:10:22,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:10:23,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:10:23,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:10:23,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:10:23,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:10:23,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:10:23,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:10:23,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:10:23,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:10:23,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:10:23,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:10:23,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:10:23,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:10:23,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:10:23,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:10:23,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:10:23,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:10:23,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 03:10:23,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:10:23,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:10:23,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 03:10:23,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:10:23,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:10:23,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 03:10:23,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 03:10:23,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-17 03:10:23,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-17 03:10:23,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 03:10:23,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-11-17 03:10:23,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-17 03:10:23,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-17 03:10:23,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 03:10:23,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 03:10:23,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-17 03:10:23,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 03:10:23,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 03:10:23,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2021-11-17 03:10:23,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:10:23,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:23,516 INFO L134 CoverageAnalysis]: Checked inductivity of 1100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1100 trivial. 0 not checked. [2021-11-17 03:10:23,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:10:23,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313934521] [2021-11-17 03:10:23,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313934521] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:10:23,520 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:10:23,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 03:10:23,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199707509] [2021-11-17 03:10:23,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:10:23,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 03:10:23,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:10:23,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 03:10:23,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:10:23,561 INFO L87 Difference]: Start difference. First operand has 2348 states, 1698 states have (on average 1.3468786808009423) internal successors, (2287), 1734 states have internal predecessors, (2287), 520 states have call successors, (520), 129 states have call predecessors, (520), 128 states have return successors, (509), 496 states have call predecessors, (509), 509 states have call successors, (509) Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (29), 6 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-17 03:10:25,655 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 03:10:27,731 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:10:32,574 WARN L515 Checker$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 03:10:39,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:10:39,370 INFO L93 Difference]: Finished difference Result 5373 states and 7946 transitions. [2021-11-17 03:10:39,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 03:10:39,373 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (29), 6 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 304 [2021-11-17 03:10:39,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:10:39,413 INFO L225 Difference]: With dead ends: 5373 [2021-11-17 03:10:39,413 INFO L226 Difference]: Without dead ends: 3012 [2021-11-17 03:10:39,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-17 03:10:39,434 INFO L933 BasicCegarLoop]: 3160 mSDtfsCounter, 2817 mSDsluCounter, 3748 mSDsCounter, 0 mSdLazyCounter, 2052 mSolverCounterSat, 2388 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2914 SdHoareTripleChecker+Valid, 6908 SdHoareTripleChecker+Invalid, 4443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2388 IncrementalHoareTripleChecker+Valid, 2052 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2021-11-17 03:10:39,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2914 Valid, 6908 Invalid, 4443 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2388 Valid, 2052 Invalid, 3 Unknown, 0 Unchecked, 15.3s Time] [2021-11-17 03:10:39,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3012 states. [2021-11-17 03:10:39,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3012 to 2330. [2021-11-17 03:10:39,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2330 states, 1693 states have (on average 1.3396337861783816) internal successors, (2268), 1716 states have internal predecessors, (2268), 509 states have call successors, (509), 128 states have call predecessors, (509), 127 states have return successors, (507), 494 states have call predecessors, (507), 507 states have call successors, (507) [2021-11-17 03:10:39,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2330 states to 2330 states and 3284 transitions. [2021-11-17 03:10:39,621 INFO L78 Accepts]: Start accepts. Automaton has 2330 states and 3284 transitions. Word has length 304 [2021-11-17 03:10:39,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:10:39,623 INFO L470 AbstractCegarLoop]: Abstraction has 2330 states and 3284 transitions. [2021-11-17 03:10:39,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (29), 6 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-17 03:10:39,624 INFO L276 IsEmpty]: Start isEmpty. Operand 2330 states and 3284 transitions. [2021-11-17 03:10:39,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2021-11-17 03:10:39,641 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:10:39,642 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:10:39,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 03:10:39,644 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:10:39,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:10:39,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1634991194, now seen corresponding path program 1 times [2021-11-17 03:10:39,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:10:39,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007847617] [2021-11-17 03:10:39,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:10:39,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:10:39,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:10:40,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:10:40,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:10:40,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:10:40,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:10:40,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:10:40,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:10:40,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:10:40,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:10:40,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:10:40,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:10:40,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:10:40,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:10:40,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:10:40,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:10:40,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:10:40,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:10:40,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:10:40,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:10:40,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:10:40,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:10:40,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:10:40,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:10:40,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:10:40,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:10:40,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:10:40,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:10:40,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 03:10:40,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:10:40,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:10:40,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 03:10:40,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:10:40,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:10:40,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 03:10:40,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 03:10:40,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-17 03:10:40,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-17 03:10:40,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 03:10:40,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-11-17 03:10:40,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-17 03:10:40,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-17 03:10:40,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 03:10:40,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 03:10:40,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-17 03:10:40,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 03:10:40,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 03:10:40,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2021-11-17 03:10:40,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:10:40,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:10:40,592 INFO L134 CoverageAnalysis]: Checked inductivity of 1100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1100 trivial. 0 not checked. [2021-11-17 03:10:40,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:10:40,593 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007847617] [2021-11-17 03:10:40,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007847617] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:10:40,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:10:40,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 03:10:40,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115494889] [2021-11-17 03:10:40,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:10:40,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 03:10:40,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:10:40,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 03:10:40,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-17 03:10:40,597 INFO L87 Difference]: Start difference. First operand 2330 states and 3284 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (29), 6 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-17 03:10:42,672 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:10:44,737 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:10:50,070 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 03:11:02,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:11:02,631 INFO L93 Difference]: Finished difference Result 8252 states and 12087 transitions. [2021-11-17 03:11:02,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 03:11:02,632 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (29), 6 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 304 [2021-11-17 03:11:02,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:11:02,676 INFO L225 Difference]: With dead ends: 8252 [2021-11-17 03:11:02,676 INFO L226 Difference]: Without dead ends: 5959 [2021-11-17 03:11:02,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-17 03:11:02,694 INFO L933 BasicCegarLoop]: 4007 mSDtfsCounter, 8239 mSDsluCounter, 7440 mSDsCounter, 0 mSdLazyCounter, 4312 mSolverCounterSat, 5021 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8610 SdHoareTripleChecker+Valid, 11447 SdHoareTripleChecker+Invalid, 9336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5021 IncrementalHoareTripleChecker+Valid, 4312 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.5s IncrementalHoareTripleChecker+Time [2021-11-17 03:11:02,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8610 Valid, 11447 Invalid, 9336 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5021 Valid, 4312 Invalid, 3 Unknown, 0 Unchecked, 21.5s Time] [2021-11-17 03:11:02,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5959 states. [2021-11-17 03:11:02,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5959 to 4610. [2021-11-17 03:11:02,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4610 states, 3362 states have (on average 1.3417608566329566) internal successors, (4511), 3407 states have internal predecessors, (4511), 990 states have call successors, (990), 255 states have call predecessors, (990), 257 states have return successors, (1011), 965 states have call predecessors, (1011), 988 states have call successors, (1011) [2021-11-17 03:11:02,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4610 states to 4610 states and 6512 transitions. [2021-11-17 03:11:02,960 INFO L78 Accepts]: Start accepts. Automaton has 4610 states and 6512 transitions. Word has length 304 [2021-11-17 03:11:02,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:11:02,962 INFO L470 AbstractCegarLoop]: Abstraction has 4610 states and 6512 transitions. [2021-11-17 03:11:02,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (29), 6 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-17 03:11:02,963 INFO L276 IsEmpty]: Start isEmpty. Operand 4610 states and 6512 transitions. [2021-11-17 03:11:02,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2021-11-17 03:11:02,978 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:11:02,979 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:11:02,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 03:11:02,979 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:11:02,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:11:02,980 INFO L85 PathProgramCache]: Analyzing trace with hash -466476478, now seen corresponding path program 1 times [2021-11-17 03:11:02,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:11:02,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573509751] [2021-11-17 03:11:02,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:11:02,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:11:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:11:03,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:11:03,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:11:03,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:11:03,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:11:03,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:11:03,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:11:03,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:11:03,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:11:03,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:11:03,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:11:03,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:11:03,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:11:03,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:11:03,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:11:03,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:11:03,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:11:03,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:11:03,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:11:03,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:11:03,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:11:03,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:11:03,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:11:03,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:11:03,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:11:03,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:11:03,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:11:03,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 03:11:03,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:11:03,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:11:03,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 03:11:03,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:11:03,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:11:03,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 03:11:03,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 03:11:03,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-17 03:11:03,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-17 03:11:03,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 03:11:03,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-11-17 03:11:03,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-17 03:11:03,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-17 03:11:03,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 03:11:03,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 03:11:03,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-17 03:11:03,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 03:11:03,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-11-17 03:11:03,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-11-17 03:11:03,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-17 03:11:03,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-11-17 03:11:03,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:11:03,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:11:03,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:03,815 INFO L134 CoverageAnalysis]: Checked inductivity of 1100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1100 trivial. 0 not checked. [2021-11-17 03:11:03,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:11:03,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573509751] [2021-11-17 03:11:03,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573509751] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:11:03,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:11:03,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 03:11:03,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960319545] [2021-11-17 03:11:03,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:11:03,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 03:11:03,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:11:03,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 03:11:03,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-17 03:11:03,819 INFO L87 Difference]: Start difference. First operand 4610 states and 6512 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (34), 7 states have call predecessors, (34), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-17 03:11:05,896 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 03:11:07,960 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:11:13,484 WARN L515 Checker$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 03:11:37,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:11:37,150 INFO L93 Difference]: Finished difference Result 17193 states and 25675 transitions. [2021-11-17 03:11:37,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-17 03:11:37,150 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (34), 7 states have call predecessors, (34), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 329 [2021-11-17 03:11:37,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:11:37,249 INFO L225 Difference]: With dead ends: 17193 [2021-11-17 03:11:37,249 INFO L226 Difference]: Without dead ends: 12633 [2021-11-17 03:11:37,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2021-11-17 03:11:37,283 INFO L933 BasicCegarLoop]: 3986 mSDtfsCounter, 10875 mSDsluCounter, 8812 mSDsCounter, 0 mSdLazyCounter, 10594 mSolverCounterSat, 7188 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11360 SdHoareTripleChecker+Valid, 12798 SdHoareTripleChecker+Invalid, 17785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7188 IncrementalHoareTripleChecker+Valid, 10594 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.5s IncrementalHoareTripleChecker+Time [2021-11-17 03:11:37,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11360 Valid, 12798 Invalid, 17785 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7188 Valid, 10594 Invalid, 3 Unknown, 0 Unchecked, 32.5s Time] [2021-11-17 03:11:37,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12633 states. [2021-11-17 03:11:37,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12633 to 9758. [2021-11-17 03:11:37,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9758 states, 7130 states have (on average 1.3396914446002806) internal successors, (9552), 7228 states have internal predecessors, (9552), 2069 states have call successors, (2069), 503 states have call predecessors, (2069), 558 states have return successors, (2518), 2066 states have call predecessors, (2518), 2067 states have call successors, (2518) [2021-11-17 03:11:37,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9758 states to 9758 states and 14139 transitions. [2021-11-17 03:11:37,840 INFO L78 Accepts]: Start accepts. Automaton has 9758 states and 14139 transitions. Word has length 329 [2021-11-17 03:11:37,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:11:37,841 INFO L470 AbstractCegarLoop]: Abstraction has 9758 states and 14139 transitions. [2021-11-17 03:11:37,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (34), 7 states have call predecessors, (34), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-17 03:11:37,842 INFO L276 IsEmpty]: Start isEmpty. Operand 9758 states and 14139 transitions. [2021-11-17 03:11:37,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2021-11-17 03:11:37,856 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:11:37,856 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:11:37,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 03:11:37,857 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:11:37,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:11:37,857 INFO L85 PathProgramCache]: Analyzing trace with hash -806236919, now seen corresponding path program 1 times [2021-11-17 03:11:37,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:11:37,858 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136526527] [2021-11-17 03:11:37,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:11:37,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:11:38,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:11:38,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:11:38,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:11:38,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:11:38,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:11:38,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:11:38,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:11:38,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:11:38,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:11:38,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:11:38,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:11:38,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:11:38,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:11:38,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:11:38,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:11:38,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:11:38,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:11:38,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:11:38,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:11:38,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:11:38,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:11:38,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:11:38,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:11:38,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:11:38,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:11:38,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:11:38,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:11:38,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 03:11:38,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:11:38,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:11:38,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 03:11:38,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:11:38,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:11:38,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 03:11:38,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 03:11:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-17 03:11:38,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-17 03:11:38,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 03:11:38,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-11-17 03:11:38,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-17 03:11:38,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-17 03:11:38,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 03:11:38,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 03:11:38,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-17 03:11:38,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 03:11:38,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-11-17 03:11:38,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-11-17 03:11:38,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-11-17 03:11:38,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-11-17 03:11:38,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:11:38,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:11:38,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:11:38,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 03:11:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:11:38,674 INFO L134 CoverageAnalysis]: Checked inductivity of 1109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1109 trivial. 0 not checked. [2021-11-17 03:11:38,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:11:38,675 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136526527] [2021-11-17 03:11:38,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136526527] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:11:38,675 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:11:38,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 03:11:38,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330570889] [2021-11-17 03:11:38,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:11:38,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 03:11:38,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:11:38,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 03:11:38,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-17 03:11:38,677 INFO L87 Difference]: Start difference. First operand 9758 states and 14139 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-17 03:11:40,757 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:11:42,830 WARN L515 Checker$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 03:11:47,086 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:11:49,126 WARN L515 Checker$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 03:12:00,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:12:00,885 INFO L93 Difference]: Finished difference Result 33334 states and 49887 transitions. [2021-11-17 03:12:00,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 03:12:00,886 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 333 [2021-11-17 03:12:00,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:12:01,025 INFO L225 Difference]: With dead ends: 33334 [2021-11-17 03:12:01,025 INFO L226 Difference]: Without dead ends: 23626 [2021-11-17 03:12:01,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2021-11-17 03:12:01,079 INFO L933 BasicCegarLoop]: 3471 mSDtfsCounter, 6831 mSDsluCounter, 5962 mSDsCounter, 0 mSdLazyCounter, 3929 mSolverCounterSat, 3546 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7299 SdHoareTripleChecker+Valid, 9433 SdHoareTripleChecker+Invalid, 7479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3546 IncrementalHoareTripleChecker+Valid, 3929 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2021-11-17 03:12:01,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7299 Valid, 9433 Invalid, 7479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3546 Valid, 3929 Invalid, 4 Unknown, 0 Unchecked, 21.1s Time] [2021-11-17 03:12:01,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23626 states. [2021-11-17 03:12:02,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23626 to 18486. [2021-11-17 03:12:02,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18486 states, 13500 states have (on average 1.3354074074074074) internal successors, (18028), 13700 states have internal predecessors, (18028), 3893 states have call successors, (3893), 981 states have call predecessors, (3893), 1092 states have return successors, (4729), 3884 states have call predecessors, (4729), 3891 states have call successors, (4729) [2021-11-17 03:12:02,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18486 states to 18486 states and 26650 transitions. [2021-11-17 03:12:02,199 INFO L78 Accepts]: Start accepts. Automaton has 18486 states and 26650 transitions. Word has length 333 [2021-11-17 03:12:02,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:12:02,202 INFO L470 AbstractCegarLoop]: Abstraction has 18486 states and 26650 transitions. [2021-11-17 03:12:02,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-17 03:12:02,203 INFO L276 IsEmpty]: Start isEmpty. Operand 18486 states and 26650 transitions. [2021-11-17 03:12:02,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2021-11-17 03:12:02,216 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:12:02,217 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:12:02,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 03:12:02,217 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:12:02,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:12:02,218 INFO L85 PathProgramCache]: Analyzing trace with hash -722257380, now seen corresponding path program 1 times [2021-11-17 03:12:02,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:12:02,220 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077017456] [2021-11-17 03:12:02,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:12:02,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:12:02,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:12:02,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:12:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:12:02,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:12:02,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:12:02,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:12:02,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:12:02,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:12:02,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:12:02,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:12:02,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:12:02,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:12:02,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:12:02,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:12:02,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:12:02,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:12:02,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:12:02,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:12:02,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:12:02,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:12:02,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:12:02,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:12:02,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:12:02,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:12:02,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:12:02,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:12:02,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:12:02,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 03:12:02,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:12:02,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:12:02,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 03:12:02,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:12:02,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:12:02,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 03:12:02,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 03:12:02,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-17 03:12:02,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-17 03:12:02,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 03:12:02,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-11-17 03:12:02,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-17 03:12:02,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-17 03:12:02,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 03:12:02,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 03:12:02,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:02,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-17 03:12:02,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:03,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 03:12:03,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:03,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-17 03:12:03,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:03,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-11-17 03:12:03,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:03,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2021-11-17 03:12:03,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:03,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-11-17 03:12:03,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:03,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-11-17 03:12:03,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:03,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:12:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:03,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:12:03,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:03,093 INFO L134 CoverageAnalysis]: Checked inductivity of 1103 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1103 trivial. 0 not checked. [2021-11-17 03:12:03,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:12:03,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077017456] [2021-11-17 03:12:03,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077017456] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:12:03,094 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:12:03,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 03:12:03,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225286203] [2021-11-17 03:12:03,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:12:03,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 03:12:03,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:12:03,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 03:12:03,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-17 03:12:03,096 INFO L87 Difference]: Start difference. First operand 18486 states and 26650 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (37), 7 states have call predecessors, (37), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-17 03:12:05,173 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:12:07,245 WARN L515 Checker$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 03:12:09,327 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:12:11,649 WARN L515 Checker$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 03:12:21,523 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:12:23,067 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:12:34,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:12:34,025 INFO L93 Difference]: Finished difference Result 65356 states and 99039 transitions. [2021-11-17 03:12:34,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-17 03:12:34,026 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (37), 7 states have call predecessors, (37), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 337 [2021-11-17 03:12:34,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:12:34,349 INFO L225 Difference]: With dead ends: 65356 [2021-11-17 03:12:34,350 INFO L226 Difference]: Without dead ends: 46920 [2021-11-17 03:12:34,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2021-11-17 03:12:34,442 INFO L933 BasicCegarLoop]: 3666 mSDtfsCounter, 13826 mSDsluCounter, 6391 mSDsCounter, 0 mSdLazyCounter, 7897 mSolverCounterSat, 10289 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14343 SdHoareTripleChecker+Valid, 10057 SdHoareTripleChecker+Invalid, 18191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10289 IncrementalHoareTripleChecker+Valid, 7897 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.1s IncrementalHoareTripleChecker+Time [2021-11-17 03:12:34,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14343 Valid, 10057 Invalid, 18191 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10289 Valid, 7897 Invalid, 5 Unknown, 0 Unchecked, 29.1s Time] [2021-11-17 03:12:34,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46920 states. [2021-11-17 03:12:37,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46920 to 42765. [2021-11-17 03:12:37,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42765 states, 31414 states have (on average 1.3307124212134718) internal successors, (41803), 31830 states have internal predecessors, (41803), 8723 states have call successors, (8723), 1929 states have call predecessors, (8723), 2627 states have return successors, (14108), 9193 states have call predecessors, (14108), 8721 states have call successors, (14108) [2021-11-17 03:12:37,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42765 states to 42765 states and 64634 transitions. [2021-11-17 03:12:37,969 INFO L78 Accepts]: Start accepts. Automaton has 42765 states and 64634 transitions. Word has length 337 [2021-11-17 03:12:37,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:12:37,970 INFO L470 AbstractCegarLoop]: Abstraction has 42765 states and 64634 transitions. [2021-11-17 03:12:37,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (37), 7 states have call predecessors, (37), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-17 03:12:37,971 INFO L276 IsEmpty]: Start isEmpty. Operand 42765 states and 64634 transitions. [2021-11-17 03:12:37,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2021-11-17 03:12:37,993 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:12:37,993 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:12:37,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 03:12:37,994 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:12:37,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:12:37,994 INFO L85 PathProgramCache]: Analyzing trace with hash -355799515, now seen corresponding path program 1 times [2021-11-17 03:12:37,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:12:37,994 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227516744] [2021-11-17 03:12:37,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:12:37,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:12:38,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:12:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:12:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:12:38,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:12:38,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:12:38,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:12:38,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:12:38,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:12:38,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:12:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:12:38,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:12:38,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:12:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:12:38,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:12:38,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:12:38,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:12:38,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:12:38,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:12:38,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:12:38,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:12:38,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:12:38,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:12:38,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:12:38,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:12:38,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:12:38,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:12:38,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:12:38,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 03:12:38,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:12:38,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:12:38,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 03:12:38,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:12:38,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:12:38,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 03:12:38,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 03:12:38,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-17 03:12:38,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-17 03:12:38,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 03:12:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-11-17 03:12:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-17 03:12:38,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-17 03:12:38,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 03:12:38,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 03:12:38,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-17 03:12:38,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 03:12:38,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 03:12:38,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2021-11-17 03:12:38,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:12:38,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-11-17 03:12:38,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2021-11-17 03:12:38,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:12:38,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:12:38,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:12:38,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2021-11-17 03:12:38,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-11-17 03:12:38,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-11-17 03:12:38,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2021-11-17 03:12:38,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-11-17 03:12:38,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2021-11-17 03:12:38,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2021-11-17 03:12:38,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:12:38,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:12:38,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:12:38,857 INFO L134 CoverageAnalysis]: Checked inductivity of 1268 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1258 trivial. 0 not checked. [2021-11-17 03:12:38,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:12:38,857 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227516744] [2021-11-17 03:12:38,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227516744] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:12:38,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:12:38,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 03:12:38,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224779713] [2021-11-17 03:12:38,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:12:38,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 03:12:38,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:12:38,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 03:12:38,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-17 03:12:38,859 INFO L87 Difference]: Start difference. First operand 42765 states and 64634 transitions. Second operand has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (43), 8 states have call predecessors, (43), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-17 03:12:40,940 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:12:43,033 WARN L515 Checker$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 03:12:45,347 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:12:52,695 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:13:01,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:13:01,330 INFO L93 Difference]: Finished difference Result 89592 states and 136972 transitions. [2021-11-17 03:13:01,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 03:13:01,331 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (43), 8 states have call predecessors, (43), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 414 [2021-11-17 03:13:01,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:13:01,754 INFO L225 Difference]: With dead ends: 89592 [2021-11-17 03:13:01,755 INFO L226 Difference]: Without dead ends: 46877 [2021-11-17 03:13:01,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2021-11-17 03:13:01,909 INFO L933 BasicCegarLoop]: 3341 mSDtfsCounter, 7935 mSDsluCounter, 4220 mSDsCounter, 0 mSdLazyCounter, 5047 mSolverCounterSat, 5060 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8239 SdHoareTripleChecker+Valid, 7561 SdHoareTripleChecker+Invalid, 10110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5060 IncrementalHoareTripleChecker+Valid, 5047 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2021-11-17 03:13:01,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8239 Valid, 7561 Invalid, 10110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5060 Valid, 5047 Invalid, 3 Unknown, 0 Unchecked, 20.3s Time] [2021-11-17 03:13:01,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46877 states. [2021-11-17 03:13:03,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46877 to 42765. [2021-11-17 03:13:03,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42765 states, 31414 states have (on average 1.3302030941618386) internal successors, (41787), 31830 states have internal predecessors, (41787), 8723 states have call successors, (8723), 1929 states have call predecessors, (8723), 2627 states have return successors, (14108), 9193 states have call predecessors, (14108), 8721 states have call successors, (14108) [2021-11-17 03:13:04,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42765 states to 42765 states and 64618 transitions. [2021-11-17 03:13:04,165 INFO L78 Accepts]: Start accepts. Automaton has 42765 states and 64618 transitions. Word has length 414 [2021-11-17 03:13:04,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:13:04,166 INFO L470 AbstractCegarLoop]: Abstraction has 42765 states and 64618 transitions. [2021-11-17 03:13:04,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (43), 8 states have call predecessors, (43), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-17 03:13:04,166 INFO L276 IsEmpty]: Start isEmpty. Operand 42765 states and 64618 transitions. [2021-11-17 03:13:04,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2021-11-17 03:13:04,189 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:13:04,191 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:13:04,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 03:13:04,191 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:13:04,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:13:04,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1576517780, now seen corresponding path program 1 times [2021-11-17 03:13:04,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:13:04,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770180721] [2021-11-17 03:13:04,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:13:04,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:13:04,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:13:04,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:04,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:04,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:13:04,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:04,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:04,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:13:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:04,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:04,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:13:04,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:04,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:04,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:13:04,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:04,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:04,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:13:04,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:04,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:04,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:13:04,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:04,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:04,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:13:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:04,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:04,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:13:04,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:04,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:04,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 03:13:04,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:04,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 03:13:04,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:04,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:04,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 03:13:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 03:13:04,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-17 03:13:04,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-17 03:13:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 03:13:04,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-11-17 03:13:04,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-17 03:13:04,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-17 03:13:04,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 03:13:04,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 03:13:04,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-17 03:13:04,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 03:13:04,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-11-17 03:13:04,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:04,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:04,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-11-17 03:13:04,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:13:04,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 03:13:04,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-17 03:13:04,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:04,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-17 03:13:04,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:04,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:04,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-17 03:13:04,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:04,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 03:13:04,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-11-17 03:13:04,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2021-11-17 03:13:04,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:04,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2021-11-17 03:13:04,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:05,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2021-11-17 03:13:05,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:05,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2021-11-17 03:13:05,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:05,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:05,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:05,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:05,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:05,034 INFO L134 CoverageAnalysis]: Checked inductivity of 1441 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1437 trivial. 0 not checked. [2021-11-17 03:13:05,034 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:13:05,034 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770180721] [2021-11-17 03:13:05,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770180721] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:13:05,034 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:13:05,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 03:13:05,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266847546] [2021-11-17 03:13:05,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:13:05,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 03:13:05,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:13:05,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 03:13:05,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-17 03:13:05,036 INFO L87 Difference]: Start difference. First operand 42765 states and 64618 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (46), 8 states have call predecessors, (46), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-11-17 03:13:07,290 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:13:09,394 WARN L515 Checker$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 03:13:11,740 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:13:30,548 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:13:40,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:13:40,493 INFO L93 Difference]: Finished difference Result 136439 states and 209334 transitions. [2021-11-17 03:13:40,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-17 03:13:40,494 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (46), 8 states have call predecessors, (46), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 432 [2021-11-17 03:13:40,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:13:41,151 INFO L225 Difference]: With dead ends: 136439 [2021-11-17 03:13:41,151 INFO L226 Difference]: Without dead ends: 93724 [2021-11-17 03:13:41,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2021-11-17 03:13:41,302 INFO L933 BasicCegarLoop]: 5694 mSDtfsCounter, 9954 mSDsluCounter, 9394 mSDsCounter, 0 mSdLazyCounter, 10105 mSolverCounterSat, 7873 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10502 SdHoareTripleChecker+Valid, 15088 SdHoareTripleChecker+Invalid, 17981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7873 IncrementalHoareTripleChecker+Valid, 10105 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.4s IncrementalHoareTripleChecker+Time [2021-11-17 03:13:41,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10502 Valid, 15088 Invalid, 17981 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7873 Valid, 10105 Invalid, 3 Unknown, 0 Unchecked, 31.4s Time] [2021-11-17 03:13:41,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93724 states. [2021-11-17 03:13:45,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93724 to 85750. [2021-11-17 03:13:45,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85750 states, 63016 states have (on average 1.3302970674114512) internal successors, (83830), 63840 states have internal predecessors, (83830), 17425 states have call successors, (17425), 3807 states have call predecessors, (17425), 5308 states have return successors, (28649), 18462 states have call predecessors, (28649), 17423 states have call successors, (28649) [2021-11-17 03:13:46,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85750 states to 85750 states and 129904 transitions. [2021-11-17 03:13:46,151 INFO L78 Accepts]: Start accepts. Automaton has 85750 states and 129904 transitions. Word has length 432 [2021-11-17 03:13:46,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:13:46,152 INFO L470 AbstractCegarLoop]: Abstraction has 85750 states and 129904 transitions. [2021-11-17 03:13:46,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (46), 8 states have call predecessors, (46), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-11-17 03:13:46,153 INFO L276 IsEmpty]: Start isEmpty. Operand 85750 states and 129904 transitions. [2021-11-17 03:13:46,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2021-11-17 03:13:46,185 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:13:46,186 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 12, 12, 12, 12, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:13:46,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 03:13:46,186 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:13:46,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:13:46,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1453938026, now seen corresponding path program 1 times [2021-11-17 03:13:46,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:13:46,187 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951722098] [2021-11-17 03:13:46,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:13:46,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:13:46,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:13:46,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:46,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:46,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:13:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:46,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:46,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:13:46,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:46,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:13:46,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:46,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:46,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:13:46,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:46,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:46,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:13:46,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:46,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:46,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:13:46,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:46,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:46,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:13:46,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:46,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:46,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:13:46,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:46,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:46,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 03:13:46,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:46,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:46,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 03:13:46,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:46,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:46,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 03:13:46,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 03:13:46,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-17 03:13:46,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-17 03:13:46,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 03:13:46,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-11-17 03:13:46,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-17 03:13:46,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-17 03:13:46,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 03:13:46,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 03:13:46,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:46,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-17 03:13:46,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:47,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 03:13:47,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:47,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 03:13:47,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:47,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2021-11-17 03:13:47,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:47,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:47,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:47,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-11-17 03:13:47,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:47,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:47,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:47,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:47,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:47,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-11-17 03:13:47,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:47,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:47,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:47,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:47,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:47,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2021-11-17 03:13:47,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:47,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:47,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:47,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:47,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:47,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2021-11-17 03:13:47,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:47,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:47,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:47,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:47,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:47,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-11-17 03:13:47,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:47,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:47,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:47,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:47,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:47,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-11-17 03:13:47,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:47,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2021-11-17 03:13:47,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:47,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:47,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:47,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:13:47,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:47,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2021-11-17 03:13:47,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:47,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2021-11-17 03:13:47,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:47,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2021-11-17 03:13:47,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:47,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453 [2021-11-17 03:13:47,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:47,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 457 [2021-11-17 03:13:47,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:47,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:47,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:47,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:47,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:47,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:13:47,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:47,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 03:13:47,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:13:47,378 INFO L134 CoverageAnalysis]: Checked inductivity of 2258 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2256 trivial. 0 not checked. [2021-11-17 03:13:47,379 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:13:47,379 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951722098] [2021-11-17 03:13:47,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951722098] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:13:47,379 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:13:47,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 03:13:47,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529898481] [2021-11-17 03:13:47,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:13:47,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 03:13:47,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:13:47,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 03:13:47,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-17 03:13:47,381 INFO L87 Difference]: Start difference. First operand 85750 states and 129904 transitions. Second operand has 9 states, 9 states have (on average 15.222222222222221) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (49), 7 states have call predecessors, (49), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2021-11-17 03:13:49,527 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:13:51,625 WARN L515 Checker$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 03:13:54,285 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:13:56,327 WARN L515 Checker$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 03:14:16,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:14:16,160 INFO L93 Difference]: Finished difference Result 180149 states and 276333 transitions. [2021-11-17 03:14:16,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 03:14:16,161 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.222222222222221) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (49), 7 states have call predecessors, (49), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 491 [2021-11-17 03:14:16,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:14:16,802 INFO L225 Difference]: With dead ends: 180149 [2021-11-17 03:14:16,802 INFO L226 Difference]: Without dead ends: 94433 [2021-11-17 03:14:17,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-11-17 03:14:17,044 INFO L933 BasicCegarLoop]: 3142 mSDtfsCounter, 2998 mSDsluCounter, 10495 mSDsCounter, 0 mSdLazyCounter, 4559 mSolverCounterSat, 2802 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3176 SdHoareTripleChecker+Valid, 13637 SdHoareTripleChecker+Invalid, 7365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2802 IncrementalHoareTripleChecker+Valid, 4559 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.1s IncrementalHoareTripleChecker+Time [2021-11-17 03:14:17,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3176 Valid, 13637 Invalid, 7365 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2802 Valid, 4559 Invalid, 4 Unknown, 0 Unchecked, 24.1s Time] [2021-11-17 03:14:17,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94433 states. [2021-11-17 03:14:20,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94433 to 85752. [2021-11-17 03:14:20,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85752 states, 63018 states have (on average 1.3300326890729632) internal successors, (83816), 63842 states have internal predecessors, (83816), 17425 states have call successors, (17425), 3807 states have call predecessors, (17425), 5308 states have return successors, (28649), 18462 states have call predecessors, (28649), 17423 states have call successors, (28649) [2021-11-17 03:14:21,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85752 states to 85752 states and 129890 transitions. [2021-11-17 03:14:21,512 INFO L78 Accepts]: Start accepts. Automaton has 85752 states and 129890 transitions. Word has length 491 [2021-11-17 03:14:21,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:14:21,513 INFO L470 AbstractCegarLoop]: Abstraction has 85752 states and 129890 transitions. [2021-11-17 03:14:21,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.222222222222221) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (49), 7 states have call predecessors, (49), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2021-11-17 03:14:21,513 INFO L276 IsEmpty]: Start isEmpty. Operand 85752 states and 129890 transitions. [2021-11-17 03:14:21,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2021-11-17 03:14:21,534 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:14:21,534 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 12, 12, 12, 12, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:14:21,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 03:14:21,535 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:14:21,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:14:21,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1897744271, now seen corresponding path program 1 times [2021-11-17 03:14:21,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:14:21,535 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933382028] [2021-11-17 03:14:21,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:14:21,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:14:21,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:21,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:14:21,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:21,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:21,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:21,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:21,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:14:21,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:21,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:21,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:21,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:21,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:21,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:14:21,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:21,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:21,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:21,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:21,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:21,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:14:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:21,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:21,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:21,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:21,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:21,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:14:21,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:21,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:21,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:21,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:21,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:14:22,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:22,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:22,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:14:22,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:22,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:22,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:14:22,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:22,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:22,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:14:22,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:22,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:22,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 03:14:22,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:22,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:22,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 03:14:22,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:22,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:22,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 03:14:22,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 03:14:22,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-17 03:14:22,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-17 03:14:22,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 03:14:22,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-11-17 03:14:22,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-17 03:14:22,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-17 03:14:22,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 03:14:22,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 03:14:22,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-17 03:14:22,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 03:14:22,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 03:14:22,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2021-11-17 03:14:22,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:22,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-11-17 03:14:22,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-17 03:14:22,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:22,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:22,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-11-17 03:14:22,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:22,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:22,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2021-11-17 03:14:22,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:22,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:22,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-11-17 03:14:22,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:22,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:22,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2021-11-17 03:14:22,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:22,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2021-11-17 03:14:22,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2021-11-17 03:14:22,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:22,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:14:22,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2021-11-17 03:14:22,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2021-11-17 03:14:22,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2021-11-17 03:14:22,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2021-11-17 03:14:22,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:22,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:22,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:14:22,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 03:14:22,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:14:22,676 INFO L134 CoverageAnalysis]: Checked inductivity of 2249 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2247 trivial. 0 not checked. [2021-11-17 03:14:22,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:14:22,676 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933382028] [2021-11-17 03:14:22,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933382028] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:14:22,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:14:22,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 03:14:22,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9047021] [2021-11-17 03:14:22,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:14:22,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 03:14:22,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:14:22,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 03:14:22,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-17 03:14:22,679 INFO L87 Difference]: Start difference. First operand 85752 states and 129890 transitions. Second operand has 8 states, 8 states have (on average 17.0) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (47), 7 states have call predecessors, (47), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-17 03:14:24,757 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:14:26,869 WARN L515 Checker$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 03:14:28,986 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:14:31,262 WARN L515 Checker$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 03:14:36,103 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 03:14:54,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:14:54,998 INFO L93 Difference]: Finished difference Result 229042 states and 352006 transitions. [2021-11-17 03:14:54,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-17 03:14:54,999 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.0) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (47), 7 states have call predecessors, (47), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 486 [2021-11-17 03:14:55,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:14:56,278 INFO L225 Difference]: With dead ends: 229042 [2021-11-17 03:14:56,278 INFO L226 Difference]: Without dead ends: 143340 [2021-11-17 03:14:56,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2021-11-17 03:14:56,640 INFO L933 BasicCegarLoop]: 4226 mSDtfsCounter, 7744 mSDsluCounter, 7452 mSDsCounter, 0 mSdLazyCounter, 4660 mSolverCounterSat, 4719 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8243 SdHoareTripleChecker+Valid, 11678 SdHoareTripleChecker+Invalid, 9384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4719 IncrementalHoareTripleChecker+Valid, 4660 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.5s IncrementalHoareTripleChecker+Time [2021-11-17 03:14:56,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8243 Valid, 11678 Invalid, 9384 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4719 Valid, 4660 Invalid, 5 Unknown, 0 Unchecked, 25.5s Time] [2021-11-17 03:14:56,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143340 states. [2021-11-17 03:15:02,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143340 to 130260. [2021-11-17 03:15:02,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130260 states, 95972 states have (on average 1.3281998916350601) internal successors, (127470), 97232 states have internal predecessors, (127470), 26243 states have call successors, (26243), 5791 states have call predecessors, (26243), 8044 states have return successors, (42993), 27780 states have call predecessors, (42993), 26241 states have call successors, (42993) [2021-11-17 03:15:03,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130260 states to 130260 states and 196706 transitions. [2021-11-17 03:15:03,980 INFO L78 Accepts]: Start accepts. Automaton has 130260 states and 196706 transitions. Word has length 486 [2021-11-17 03:15:03,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:15:03,981 INFO L470 AbstractCegarLoop]: Abstraction has 130260 states and 196706 transitions. [2021-11-17 03:15:03,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.0) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (47), 7 states have call predecessors, (47), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-17 03:15:03,981 INFO L276 IsEmpty]: Start isEmpty. Operand 130260 states and 196706 transitions. [2021-11-17 03:15:03,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 500 [2021-11-17 03:15:03,999 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:15:03,999 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 12, 12, 12, 12, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:15:03,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 03:15:03,999 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:15:04,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:15:04,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1007907279, now seen corresponding path program 1 times [2021-11-17 03:15:04,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:15:04,000 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640278683] [2021-11-17 03:15:04,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:15:04,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:15:04,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:04,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:15:04,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:04,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:04,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:04,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:15:04,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:04,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:15:04,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:04,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:04,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:04,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:15:04,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:04,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:15:04,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:04,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:04,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:04,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:15:04,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:04,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:15:04,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:04,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:04,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:04,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:15:04,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:04,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:15:04,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:04,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:04,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:04,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:15:04,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:04,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:15:04,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:04,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:04,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:04,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:15:04,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:04,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:15:04,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:04,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:04,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:04,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:15:04,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:04,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:15:04,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:04,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:04,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:15:05,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 03:15:05,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:05,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:15:05,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 03:15:05,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:05,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:15:05,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 03:15:05,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:05,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:15:05,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 03:15:05,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 03:15:05,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-17 03:15:05,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-17 03:15:05,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 03:15:05,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-11-17 03:15:05,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-17 03:15:05,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-17 03:15:05,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 03:15:05,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 03:15:05,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-17 03:15:05,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 03:15:05,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 03:15:05,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2021-11-17 03:15:05,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:05,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-11-17 03:15:05,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-11-17 03:15:05,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:05,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:15:05,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-11-17 03:15:05,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:05,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:15:05,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2021-11-17 03:15:05,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:05,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:15:05,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-11-17 03:15:05,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:05,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:15:05,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2021-11-17 03:15:05,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:05,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:15:05,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2021-11-17 03:15:05,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2021-11-17 03:15:05,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:05,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:15:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2021-11-17 03:15:05,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2021-11-17 03:15:05,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2021-11-17 03:15:05,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 461 [2021-11-17 03:15:05,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 465 [2021-11-17 03:15:05,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:05,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:05,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:15:05,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 03:15:05,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:05,522 INFO L134 CoverageAnalysis]: Checked inductivity of 2258 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2254 trivial. 0 not checked. [2021-11-17 03:15:05,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:15:05,522 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640278683] [2021-11-17 03:15:05,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640278683] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 03:15:05,523 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062949341] [2021-11-17 03:15:05,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:15:05,523 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 03:15:05,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 03:15:05,525 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 03:15:05,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-17 03:15:06,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:15:06,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 7464 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-17 03:15:07,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 03:15:07,972 INFO L134 CoverageAnalysis]: Checked inductivity of 2258 backedges. 930 proven. 0 refuted. 0 times theorem prover too weak. 1328 trivial. 0 not checked. [2021-11-17 03:15:07,973 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 03:15:07,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2062949341] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:15:07,973 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 03:15:07,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 16 [2021-11-17 03:15:07,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601630097] [2021-11-17 03:15:07,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:15:07,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 03:15:07,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:15:07,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 03:15:07,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-11-17 03:15:07,975 INFO L87 Difference]: Start difference. First operand 130260 states and 196706 transitions. Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 3 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2021-11-17 03:15:10,035 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:15:12,167 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 []