./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--hisax--hisax_st5481.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--hisax--hisax_st5481.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 0a0b87150f68c4dfa6a57a3698556eda427efd851a248be648b2e5c8b3a3f4dd --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 23:23:54,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 23:23:54,470 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 23:23:54,527 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 23:23:54,528 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 23:23:54,528 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 23:23:54,529 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 23:23:54,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 23:23:54,532 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 23:23:54,532 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 23:23:54,533 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 23:23:54,534 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 23:23:54,547 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 23:23:54,548 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 23:23:54,549 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 23:23:54,549 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 23:23:54,550 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 23:23:54,551 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 23:23:54,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 23:23:54,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 23:23:54,554 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 23:23:54,559 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 23:23:54,560 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 23:23:54,560 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 23:23:54,561 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 23:23:54,563 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 23:23:54,567 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 23:23:54,568 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 23:23:54,568 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 23:23:54,569 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 23:23:54,569 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 23:23:54,569 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 23:23:54,570 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 23:23:54,570 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 23:23:54,571 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 23:23:54,571 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 23:23:54,572 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 23:23:54,573 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 23:23:54,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 23:23:54,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 23:23:54,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 23:23:54,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 23:23:54,577 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-19 23:23:54,595 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 23:23:54,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 23:23:54,598 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 23:23:54,598 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 23:23:54,599 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 23:23:54,599 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 23:23:54,600 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 23:23:54,600 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 23:23:54,600 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 23:23:54,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 23:23:54,601 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 23:23:54,601 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 23:23:54,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 23:23:54,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 23:23:54,601 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 23:23:54,601 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 23:23:54,602 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 23:23:54,602 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 23:23:54,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 23:23:54,603 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 23:23:54,603 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 23:23:54,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 23:23:54,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 23:23:54,604 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 23:23:54,604 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 23:23:54,604 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 23:23:54,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 23:23:54,604 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 23:23:54,604 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 23:23:54,604 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 23:23:54,605 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a0b87150f68c4dfa6a57a3698556eda427efd851a248be648b2e5c8b3a3f4dd [2022-07-19 23:23:54,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 23:23:54,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 23:23:54,804 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 23:23:54,805 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 23:23:54,805 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 23:23:54,807 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--hisax--hisax_st5481.ko-entry_point.cil.out.i [2022-07-19 23:23:54,849 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca00e1767/e1c05ceee64d4b19b0abe5463f666436/FLAGae68abb6a [2022-07-19 23:23:55,448 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 23:23:55,448 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--hisax--hisax_st5481.ko-entry_point.cil.out.i [2022-07-19 23:23:55,480 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca00e1767/e1c05ceee64d4b19b0abe5463f666436/FLAGae68abb6a [2022-07-19 23:23:55,584 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca00e1767/e1c05ceee64d4b19b0abe5463f666436 [2022-07-19 23:23:55,587 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 23:23:55,588 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 23:23:55,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 23:23:55,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 23:23:55,591 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 23:23:55,592 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:23:55" (1/1) ... [2022-07-19 23:23:55,593 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59de24c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:23:55, skipping insertion in model container [2022-07-19 23:23:55,593 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:23:55" (1/1) ... [2022-07-19 23:23:55,597 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 23:23:55,685 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 23:23:56,109 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--hisax--hisax_st5481.ko-entry_point.cil.out.i[156940,156953] [2022-07-19 23:23:56,819 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:23:56,848 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 23:23:56,964 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--hisax--hisax_st5481.ko-entry_point.cil.out.i[156940,156953] [2022-07-19 23:23:57,124 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:23:57,174 INFO L208 MainTranslator]: Completed translation [2022-07-19 23:23:57,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:23:57 WrapperNode [2022-07-19 23:23:57,175 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 23:23:57,176 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 23:23:57,177 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 23:23:57,177 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 23:23:57,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:23:57" (1/1) ... [2022-07-19 23:23:57,281 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:23:57" (1/1) ... [2022-07-19 23:23:57,388 INFO L137 Inliner]: procedures = 220, calls = 1909, calls flagged for inlining = 76, calls inlined = 76, statements flattened = 3530 [2022-07-19 23:23:57,388 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 23:23:57,390 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 23:23:57,390 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 23:23:57,390 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 23:23:57,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:23:57" (1/1) ... [2022-07-19 23:23:57,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:23:57" (1/1) ... [2022-07-19 23:23:57,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:23:57" (1/1) ... [2022-07-19 23:23:57,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:23:57" (1/1) ... [2022-07-19 23:23:57,493 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:23:57" (1/1) ... [2022-07-19 23:23:57,512 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:23:57" (1/1) ... [2022-07-19 23:23:57,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:23:57" (1/1) ... [2022-07-19 23:23:57,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 23:23:57,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 23:23:57,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 23:23:57,552 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 23:23:57,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:23:57" (1/1) ... [2022-07-19 23:23:57,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 23:23:57,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 23:23:57,577 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) [2022-07-19 23:23:57,582 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 [2022-07-19 23:23:57,605 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ctrl_complete [2022-07-19 23:23:57,606 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ctrl_complete [2022-07-19 23:23:57,606 INFO L130 BoogieDeclarations]: Found specification of procedure dout_reset [2022-07-19 23:23:57,606 INFO L138 BoogieDeclarations]: Found implementation of procedure dout_reset [2022-07-19 23:23:57,606 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_release_isocpipes [2022-07-19 23:23:57,606 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_release_isocpipes [2022-07-19 23:23:57,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-19 23:23:57,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-19 23:23:57,607 INFO L130 BoogieDeclarations]: Found specification of procedure __cpu_to_le16p [2022-07-19 23:23:57,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __cpu_to_le16p [2022-07-19 23:23:57,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-19 23:23:57,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-19 23:23:57,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-07-19 23:23:57,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-07-19 23:23:57,607 INFO L130 BoogieDeclarations]: Found specification of procedure usb_altnum_to_altsetting [2022-07-19 23:23:57,607 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_altnum_to_altsetting [2022-07-19 23:23:57,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-19 23:23:57,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-19 23:23:57,608 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_st5481 [2022-07-19 23:23:57,608 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_st5481 [2022-07-19 23:23:57,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-07-19 23:23:57,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-07-19 23:23:57,608 INFO L130 BoogieDeclarations]: Found specification of procedure usb_next_ctrl_msg [2022-07-19 23:23:57,608 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_next_ctrl_msg [2022-07-19 23:23:57,608 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_release_usb [2022-07-19 23:23:57,609 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_release_usb [2022-07-19 23:23:57,609 INFO L130 BoogieDeclarations]: Found specification of procedure usb_b_out [2022-07-19 23:23:57,609 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_b_out [2022-07-19 23:23:57,609 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_usb_device_ctrl_msg [2022-07-19 23:23:57,609 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_usb_device_ctrl_msg [2022-07-19 23:23:57,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-19 23:23:57,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-19 23:23:57,609 INFO L130 BoogieDeclarations]: Found specification of procedure FsmEvent [2022-07-19 23:23:57,609 INFO L138 BoogieDeclarations]: Found implementation of procedure FsmEvent [2022-07-19 23:23:57,610 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-19 23:23:57,610 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-19 23:23:57,610 INFO L130 BoogieDeclarations]: Found specification of procedure led_blink [2022-07-19 23:23:57,610 INFO L138 BoogieDeclarations]: Found implementation of procedure led_blink [2022-07-19 23:23:57,610 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_in_mode [2022-07-19 23:23:57,610 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_in_mode [2022-07-19 23:23:57,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-07-19 23:23:57,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-07-19 23:23:57,610 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_start_rcv [2022-07-19 23:23:57,611 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_start_rcv [2022-07-19 23:23:57,611 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-19 23:23:57,611 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-19 23:23:57,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_23 [2022-07-19 23:23:57,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_23 [2022-07-19 23:23:57,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_24 [2022-07-19 23:23:57,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_24 [2022-07-19 23:23:57,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_2 [2022-07-19 23:23:57,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_2 [2022-07-19 23:23:57,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_29 [2022-07-19 23:23:57,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_29 [2022-07-19 23:23:57,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_25 [2022-07-19 23:23:57,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_25 [2022-07-19 23:23:57,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 23:23:57,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_27 [2022-07-19 23:23:57,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_27 [2022-07-19 23:23:57,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_28 [2022-07-19 23:23:57,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_28 [2022-07-19 23:23:57,615 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2022-07-19 23:23:57,615 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2022-07-19 23:23:57,615 INFO L130 BoogieDeclarations]: Found specification of procedure ph_connect [2022-07-19 23:23:57,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ph_connect [2022-07-19 23:23:57,619 INFO L130 BoogieDeclarations]: Found specification of procedure st5481B_mode [2022-07-19 23:23:57,619 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481B_mode [2022-07-19 23:23:57,619 INFO L130 BoogieDeclarations]: Found specification of procedure B_L1L2 [2022-07-19 23:23:57,619 INFO L138 BoogieDeclarations]: Found implementation of procedure B_L1L2 [2022-07-19 23:23:57,619 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~VOID [2022-07-19 23:23:57,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~VOID [2022-07-19 23:23:57,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_10 [2022-07-19 23:23:57,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_10 [2022-07-19 23:23:57,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-19 23:23:57,620 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_11 [2022-07-19 23:23:57,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_11 [2022-07-19 23:23:57,620 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2022-07-19 23:23:57,620 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2022-07-19 23:23:57,620 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_setup_isocpipes [2022-07-19 23:23:57,620 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_setup_isocpipes [2022-07-19 23:23:57,620 INFO L130 BoogieDeclarations]: Found specification of procedure isdnhdlc_out_init [2022-07-19 23:23:57,620 INFO L138 BoogieDeclarations]: Found implementation of procedure isdnhdlc_out_init [2022-07-19 23:23:57,620 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-19 23:23:57,620 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-19 23:23:57,620 INFO L130 BoogieDeclarations]: Found specification of procedure ph_disconnect [2022-07-19 23:23:57,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ph_disconnect [2022-07-19 23:23:57,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 23:23:57,620 INFO L130 BoogieDeclarations]: Found specification of procedure l1_go_f6 [2022-07-19 23:23:57,620 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_go_f6 [2022-07-19 23:23:57,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-19 23:23:57,620 INFO L130 BoogieDeclarations]: Found specification of procedure l1_go_f7 [2022-07-19 23:23:57,620 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_go_f7 [2022-07-19 23:23:57,621 INFO L130 BoogieDeclarations]: Found specification of procedure l1_go_f8 [2022-07-19 23:23:57,621 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_go_f8 [2022-07-19 23:23:57,621 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_b_l2l1 [2022-07-19 23:23:57,621 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_b_l2l1 [2022-07-19 23:23:57,621 INFO L130 BoogieDeclarations]: Found specification of procedure l1_go_f3 [2022-07-19 23:23:57,621 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_go_f3 [2022-07-19 23:23:57,621 INFO L130 BoogieDeclarations]: Found specification of procedure dout_short_fifo [2022-07-19 23:23:57,621 INFO L138 BoogieDeclarations]: Found implementation of procedure dout_short_fifo [2022-07-19 23:23:57,621 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_setup_b [2022-07-19 23:23:57,621 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_setup_b [2022-07-19 23:23:57,621 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-19 23:23:57,621 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-19 23:23:57,621 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-19 23:23:57,621 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-19 23:23:57,621 INFO L130 BoogieDeclarations]: Found specification of procedure usb_in_complete [2022-07-19 23:23:57,621 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_in_complete [2022-07-19 23:23:57,621 INFO L130 BoogieDeclarations]: Found specification of procedure usb_d_out_complete [2022-07-19 23:23:57,621 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_d_out_complete [2022-07-19 23:23:57,621 INFO L130 BoogieDeclarations]: Found specification of procedure st5481B_start_xfer [2022-07-19 23:23:57,621 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481B_start_xfer [2022-07-19 23:23:57,622 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_usb_pipe_reset [2022-07-19 23:23:57,622 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_usb_pipe_reset [2022-07-19 23:23:57,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-19 23:23:57,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-19 23:23:57,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-19 23:23:57,622 INFO L130 BoogieDeclarations]: Found specification of procedure dout_check_busy [2022-07-19 23:23:57,622 INFO L138 BoogieDeclarations]: Found implementation of procedure dout_check_busy [2022-07-19 23:23:57,622 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_release_b_out [2022-07-19 23:23:57,622 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_release_b_out [2022-07-19 23:23:57,622 INFO L130 BoogieDeclarations]: Found specification of procedure FsmFree [2022-07-19 23:23:57,622 INFO L138 BoogieDeclarations]: Found implementation of procedure FsmFree [2022-07-19 23:23:57,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-19 23:23:57,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 23:23:57,622 INFO L130 BoogieDeclarations]: Found specification of procedure isdnhdlc_encode [2022-07-19 23:23:57,622 INFO L138 BoogieDeclarations]: Found implementation of procedure isdnhdlc_encode [2022-07-19 23:23:57,622 INFO L130 BoogieDeclarations]: Found specification of procedure usb_d_out [2022-07-19 23:23:57,622 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_d_out [2022-07-19 23:23:57,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-19 23:23:57,623 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-19 23:23:57,623 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-19 23:23:57,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-19 23:23:57,623 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-19 23:23:57,623 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-19 23:23:57,623 INFO L130 BoogieDeclarations]: Found specification of procedure dout_long_den [2022-07-19 23:23:57,623 INFO L138 BoogieDeclarations]: Found implementation of procedure dout_long_den [2022-07-19 23:23:57,623 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-07-19 23:23:57,623 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-07-19 23:23:57,623 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-19 23:23:57,623 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-19 23:23:57,623 INFO L130 BoogieDeclarations]: Found specification of procedure dout_stop [2022-07-19 23:23:57,623 INFO L138 BoogieDeclarations]: Found implementation of procedure dout_stop [2022-07-19 23:23:57,623 INFO L130 BoogieDeclarations]: Found specification of procedure dout_underrun [2022-07-19 23:23:57,623 INFO L138 BoogieDeclarations]: Found implementation of procedure dout_underrun [2022-07-19 23:23:57,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 23:23:57,623 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-07-19 23:23:57,623 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-07-19 23:23:57,623 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_release_in [2022-07-19 23:23:57,623 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_release_in [2022-07-19 23:23:57,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-19 23:23:57,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-19 23:23:57,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_31 [2022-07-19 23:23:57,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_31 [2022-07-19 23:23:57,624 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_d_exit [2022-07-19 23:23:57,624 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_d_exit [2022-07-19 23:23:57,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-19 23:23:57,624 INFO L130 BoogieDeclarations]: Found specification of procedure dump_iso_packet___0 [2022-07-19 23:23:57,624 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_iso_packet___0 [2022-07-19 23:23:57,624 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ctrl_msg [2022-07-19 23:23:57,624 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ctrl_msg [2022-07-19 23:23:57,624 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-19 23:23:57,624 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-19 23:23:57,624 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-19 23:23:57,624 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-19 23:23:57,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 23:23:57,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-19 23:23:57,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-19 23:23:57,624 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-19 23:23:57,624 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-19 23:23:57,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-19 23:23:57,624 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_release_b [2022-07-19 23:23:57,625 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_release_b [2022-07-19 23:23:57,625 INFO L130 BoogieDeclarations]: Found specification of procedure dump_packet [2022-07-19 23:23:57,625 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_packet [2022-07-19 23:23:57,625 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_release_d [2022-07-19 23:23:57,625 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_release_d [2022-07-19 23:23:57,625 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-19 23:23:57,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-19 23:23:57,625 INFO L130 BoogieDeclarations]: Found specification of procedure l1_activate [2022-07-19 23:23:57,625 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_activate [2022-07-19 23:23:57,625 INFO L130 BoogieDeclarations]: Found specification of procedure FsmNew [2022-07-19 23:23:57,625 INFO L138 BoogieDeclarations]: Found implementation of procedure FsmNew [2022-07-19 23:23:57,625 INFO L130 BoogieDeclarations]: Found specification of procedure l1_timer3 [2022-07-19 23:23:57,625 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_timer3 [2022-07-19 23:23:57,625 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_stop [2022-07-19 23:23:57,625 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_stop [2022-07-19 23:23:57,625 INFO L130 BoogieDeclarations]: Found specification of procedure dout_long_enable_fifo [2022-07-19 23:23:57,625 INFO L138 BoogieDeclarations]: Found implementation of procedure dout_long_enable_fifo [2022-07-19 23:23:57,625 INFO L130 BoogieDeclarations]: Found specification of procedure usb_b_out_complete [2022-07-19 23:23:57,625 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_b_out_complete [2022-07-19 23:23:57,625 INFO L130 BoogieDeclarations]: Found specification of procedure usb_int_complete [2022-07-19 23:23:57,625 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_int_complete [2022-07-19 23:23:57,626 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_setup_in [2022-07-19 23:23:57,626 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_setup_in [2022-07-19 23:23:57,626 INFO L130 BoogieDeclarations]: Found specification of procedure D_L1L2 [2022-07-19 23:23:57,626 INFO L138 BoogieDeclarations]: Found implementation of procedure D_L1L2 [2022-07-19 23:23:57,626 INFO L130 BoogieDeclarations]: Found specification of procedure dout_complete [2022-07-19 23:23:57,626 INFO L138 BoogieDeclarations]: Found implementation of procedure dout_complete [2022-07-19 23:23:57,626 INFO L130 BoogieDeclarations]: Found specification of procedure FsmChangeState [2022-07-19 23:23:57,626 INFO L138 BoogieDeclarations]: Found implementation of procedure FsmChangeState [2022-07-19 23:23:57,626 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_ph_command [2022-07-19 23:23:57,626 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_ph_command [2022-07-19 23:23:57,626 INFO L130 BoogieDeclarations]: Found specification of procedure dout_start_xmit [2022-07-19 23:23:57,626 INFO L138 BoogieDeclarations]: Found implementation of procedure dout_start_xmit [2022-07-19 23:23:57,626 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_release_d_out [2022-07-19 23:23:57,626 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_release_d_out [2022-07-19 23:23:57,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-07-19 23:23:57,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-07-19 23:23:57,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 23:23:57,626 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2022-07-19 23:23:57,626 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2022-07-19 23:23:57,626 INFO L130 BoogieDeclarations]: Found specification of procedure get_buf_nr [2022-07-19 23:23:57,626 INFO L138 BoogieDeclarations]: Found implementation of procedure get_buf_nr [2022-07-19 23:23:57,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 23:23:57,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 23:23:58,151 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 23:23:58,157 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 23:23:58,283 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-19 23:24:03,074 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-07-19 23:24:07,284 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 23:24:07,301 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 23:24:07,301 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-19 23:24:07,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:24:07 BoogieIcfgContainer [2022-07-19 23:24:07,305 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 23:24:07,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 23:24:07,307 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 23:24:07,310 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 23:24:07,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 11:23:55" (1/3) ... [2022-07-19 23:24:07,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51cc653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:24:07, skipping insertion in model container [2022-07-19 23:24:07,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:23:57" (2/3) ... [2022-07-19 23:24:07,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51cc653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:24:07, skipping insertion in model container [2022-07-19 23:24:07,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:24:07" (3/3) ... [2022-07-19 23:24:07,313 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--hisax--hisax_st5481.ko-entry_point.cil.out.i [2022-07-19 23:24:07,323 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 23:24:07,323 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 23:24:07,394 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 23:24:07,398 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1b28f30b, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@44218b19 [2022-07-19 23:24:07,398 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 23:24:07,405 INFO L276 IsEmpty]: Start isEmpty. Operand has 1288 states, 906 states have (on average 1.3741721854304636) internal successors, (1245), 972 states have internal predecessors, (1245), 283 states have call successors, (283), 100 states have call predecessors, (283), 98 states have return successors, (278), 254 states have call predecessors, (278), 278 states have call successors, (278) [2022-07-19 23:24:07,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-19 23:24:07,412 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:24:07,413 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-19 23:24:07,414 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:24:07,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:24:07,417 INFO L85 PathProgramCache]: Analyzing trace with hash 2055883923, now seen corresponding path program 1 times [2022-07-19 23:24:07,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:24:07,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716722944] [2022-07-19 23:24:07,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:24:07,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:24:07,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:07,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:24:07,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:07,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 23:24:07,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:07,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-19 23:24:07,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:07,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 23:24:07,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:07,891 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 23:24:07,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:24:07,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716722944] [2022-07-19 23:24:07,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716722944] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:24:07,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:24:07,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:24:07,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119292144] [2022-07-19 23:24:07,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:24:07,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:24:07,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:24:07,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:24:07,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 23:24:07,940 INFO L87 Difference]: Start difference. First operand has 1288 states, 906 states have (on average 1.3741721854304636) internal successors, (1245), 972 states have internal predecessors, (1245), 283 states have call successors, (283), 100 states have call predecessors, (283), 98 states have return successors, (278), 254 states have call predecessors, (278), 278 states have call successors, (278) Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-19 23:24:14,117 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:24:14,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:24:14,669 INFO L93 Difference]: Finished difference Result 4140 states and 6181 transitions. [2022-07-19 23:24:14,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 23:24:14,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 33 [2022-07-19 23:24:14,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:24:14,696 INFO L225 Difference]: With dead ends: 4140 [2022-07-19 23:24:14,696 INFO L226 Difference]: Without dead ends: 2833 [2022-07-19 23:24:14,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:24:14,711 INFO L413 NwaCegarLoop]: 1877 mSDtfsCounter, 2701 mSDsluCounter, 2080 mSDsCounter, 0 mSdLazyCounter, 1379 mSolverCounterSat, 988 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2859 SdHoareTripleChecker+Valid, 3957 SdHoareTripleChecker+Invalid, 2368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 988 IncrementalHoareTripleChecker+Valid, 1379 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-07-19 23:24:14,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2859 Valid, 3957 Invalid, 2368 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [988 Valid, 1379 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-07-19 23:24:14,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2833 states. [2022-07-19 23:24:14,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2833 to 2495. [2022-07-19 23:24:14,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2495 states, 1759 states have (on average 1.3604320636725413) internal successors, (2393), 1869 states have internal predecessors, (2393), 542 states have call successors, (542), 194 states have call predecessors, (542), 193 states have return successors, (537), 489 states have call predecessors, (537), 537 states have call successors, (537) [2022-07-19 23:24:14,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2495 states to 2495 states and 3472 transitions. [2022-07-19 23:24:14,854 INFO L78 Accepts]: Start accepts. Automaton has 2495 states and 3472 transitions. Word has length 33 [2022-07-19 23:24:14,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:24:14,855 INFO L495 AbstractCegarLoop]: Abstraction has 2495 states and 3472 transitions. [2022-07-19 23:24:14,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-19 23:24:14,856 INFO L276 IsEmpty]: Start isEmpty. Operand 2495 states and 3472 transitions. [2022-07-19 23:24:14,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-19 23:24:14,857 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:24:14,858 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:24:14,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 23:24:14,858 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:24:14,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:24:14,859 INFO L85 PathProgramCache]: Analyzing trace with hash 408730137, now seen corresponding path program 1 times [2022-07-19 23:24:14,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:24:14,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258858759] [2022-07-19 23:24:14,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:24:14,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:24:14,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:15,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:24:15,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:15,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 23:24:15,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:15,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 23:24:15,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:24:15,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258858759] [2022-07-19 23:24:15,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258858759] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:24:15,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:24:15,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:24:15,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693462085] [2022-07-19 23:24:15,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:24:15,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:24:15,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:24:15,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:24:15,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 23:24:15,029 INFO L87 Difference]: Start difference. First operand 2495 states and 3472 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 23:24:19,324 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:24:19,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:24:19,639 INFO L93 Difference]: Finished difference Result 2859 states and 4046 transitions. [2022-07-19 23:24:19,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 23:24:19,640 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2022-07-19 23:24:19,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:24:19,656 INFO L225 Difference]: With dead ends: 2859 [2022-07-19 23:24:19,656 INFO L226 Difference]: Without dead ends: 2846 [2022-07-19 23:24:19,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:24:19,663 INFO L413 NwaCegarLoop]: 1647 mSDtfsCounter, 2172 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 643 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2284 SdHoareTripleChecker+Valid, 2274 SdHoareTripleChecker+Invalid, 1291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 643 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-07-19 23:24:19,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2284 Valid, 2274 Invalid, 1291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [643 Valid, 647 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-07-19 23:24:19,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2846 states. [2022-07-19 23:24:19,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2846 to 2495. [2022-07-19 23:24:19,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2495 states, 1759 states have (on average 1.3598635588402501) internal successors, (2392), 1869 states have internal predecessors, (2392), 542 states have call successors, (542), 194 states have call predecessors, (542), 193 states have return successors, (537), 489 states have call predecessors, (537), 537 states have call successors, (537) [2022-07-19 23:24:19,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2495 states to 2495 states and 3471 transitions. [2022-07-19 23:24:19,749 INFO L78 Accepts]: Start accepts. Automaton has 2495 states and 3471 transitions. Word has length 33 [2022-07-19 23:24:19,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:24:19,750 INFO L495 AbstractCegarLoop]: Abstraction has 2495 states and 3471 transitions. [2022-07-19 23:24:19,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 23:24:19,750 INFO L276 IsEmpty]: Start isEmpty. Operand 2495 states and 3471 transitions. [2022-07-19 23:24:19,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-19 23:24:19,755 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:24:19,755 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:24:19,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 23:24:19,756 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:24:19,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:24:19,756 INFO L85 PathProgramCache]: Analyzing trace with hash 465988439, now seen corresponding path program 1 times [2022-07-19 23:24:19,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:24:19,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266651708] [2022-07-19 23:24:19,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:24:19,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:24:19,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:19,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:24:19,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:19,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 23:24:19,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:20,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 23:24:20,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:24:20,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266651708] [2022-07-19 23:24:20,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266651708] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:24:20,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:24:20,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:24:20,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171221331] [2022-07-19 23:24:20,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:24:20,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:24:20,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:24:20,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:24:20,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 23:24:20,006 INFO L87 Difference]: Start difference. First operand 2495 states and 3471 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 23:24:25,590 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:24:27,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:24:27,422 INFO L93 Difference]: Finished difference Result 8134 states and 12380 transitions. [2022-07-19 23:24:27,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 23:24:27,422 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2022-07-19 23:24:27,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:24:27,447 INFO L225 Difference]: With dead ends: 8134 [2022-07-19 23:24:27,447 INFO L226 Difference]: Without dead ends: 5651 [2022-07-19 23:24:27,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:24:27,458 INFO L413 NwaCegarLoop]: 2054 mSDtfsCounter, 2832 mSDsluCounter, 2124 mSDsCounter, 0 mSdLazyCounter, 1432 mSolverCounterSat, 1028 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2951 SdHoareTripleChecker+Valid, 4178 SdHoareTripleChecker+Invalid, 2461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1028 IncrementalHoareTripleChecker+Valid, 1432 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-07-19 23:24:27,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2951 Valid, 4178 Invalid, 2461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1028 Valid, 1432 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2022-07-19 23:24:27,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5651 states. [2022-07-19 23:24:27,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5651 to 5289. [2022-07-19 23:24:27,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5289 states, 3700 states have (on average 1.347837837837838) internal successors, (4987), 3940 states have internal predecessors, (4987), 1115 states have call successors, (1115), 386 states have call predecessors, (1115), 473 states have return successors, (1644), 1070 states have call predecessors, (1644), 1110 states have call successors, (1644) [2022-07-19 23:24:27,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5289 states to 5289 states and 7746 transitions. [2022-07-19 23:24:27,627 INFO L78 Accepts]: Start accepts. Automaton has 5289 states and 7746 transitions. Word has length 33 [2022-07-19 23:24:27,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:24:27,628 INFO L495 AbstractCegarLoop]: Abstraction has 5289 states and 7746 transitions. [2022-07-19 23:24:27,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 23:24:27,628 INFO L276 IsEmpty]: Start isEmpty. Operand 5289 states and 7746 transitions. [2022-07-19 23:24:27,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-19 23:24:27,631 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:24:27,631 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:24:27,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 23:24:27,632 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:24:27,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:24:27,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1560195809, now seen corresponding path program 1 times [2022-07-19 23:24:27,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:24:27,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616522412] [2022-07-19 23:24:27,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:24:27,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:24:27,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:27,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:24:27,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:27,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 23:24:27,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:27,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 23:24:27,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:24:27,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616522412] [2022-07-19 23:24:27,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616522412] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:24:27,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:24:27,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:24:27,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552619882] [2022-07-19 23:24:27,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:24:27,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:24:27,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:24:27,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:24:27,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 23:24:27,797 INFO L87 Difference]: Start difference. First operand 5289 states and 7746 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 23:24:31,673 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:24:31,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:24:31,980 INFO L93 Difference]: Finished difference Result 5643 states and 8325 transitions. [2022-07-19 23:24:31,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 23:24:31,980 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2022-07-19 23:24:31,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:24:32,009 INFO L225 Difference]: With dead ends: 5643 [2022-07-19 23:24:32,009 INFO L226 Difference]: Without dead ends: 5640 [2022-07-19 23:24:32,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:24:32,014 INFO L413 NwaCegarLoop]: 1625 mSDtfsCounter, 2152 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 642 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2265 SdHoareTripleChecker+Valid, 2223 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 642 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-07-19 23:24:32,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2265 Valid, 2223 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [642 Valid, 641 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-07-19 23:24:32,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5640 states. [2022-07-19 23:24:32,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5640 to 5288. [2022-07-19 23:24:32,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5288 states, 3700 states have (on average 1.3475675675675676) internal successors, (4986), 3939 states have internal predecessors, (4986), 1114 states have call successors, (1114), 386 states have call predecessors, (1114), 473 states have return successors, (1644), 1070 states have call predecessors, (1644), 1110 states have call successors, (1644) [2022-07-19 23:24:32,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5288 states to 5288 states and 7744 transitions. [2022-07-19 23:24:32,199 INFO L78 Accepts]: Start accepts. Automaton has 5288 states and 7744 transitions. Word has length 34 [2022-07-19 23:24:32,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:24:32,200 INFO L495 AbstractCegarLoop]: Abstraction has 5288 states and 7744 transitions. [2022-07-19 23:24:32,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 23:24:32,200 INFO L276 IsEmpty]: Start isEmpty. Operand 5288 states and 7744 transitions. [2022-07-19 23:24:32,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-19 23:24:32,201 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:24:32,201 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:24:32,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 23:24:32,201 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:24:32,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:24:32,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1120890778, now seen corresponding path program 1 times [2022-07-19 23:24:32,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:24:32,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115244224] [2022-07-19 23:24:32,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:24:32,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:24:32,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:32,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:24:32,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:32,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 23:24:32,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:32,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 23:24:32,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:24:32,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115244224] [2022-07-19 23:24:32,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115244224] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:24:32,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:24:32,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:24:32,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593699916] [2022-07-19 23:24:32,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:24:32,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:24:32,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:24:32,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:24:32,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 23:24:32,419 INFO L87 Difference]: Start difference. First operand 5288 states and 7744 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 23:24:36,310 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:24:36,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:24:36,589 INFO L93 Difference]: Finished difference Result 5642 states and 8323 transitions. [2022-07-19 23:24:36,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 23:24:36,590 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2022-07-19 23:24:36,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:24:36,614 INFO L225 Difference]: With dead ends: 5642 [2022-07-19 23:24:36,615 INFO L226 Difference]: Without dead ends: 5639 [2022-07-19 23:24:36,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:24:36,618 INFO L413 NwaCegarLoop]: 1624 mSDtfsCounter, 2150 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 639 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2262 SdHoareTripleChecker+Valid, 2222 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 639 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-07-19 23:24:36,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2262 Valid, 2222 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [639 Valid, 643 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-07-19 23:24:36,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5639 states. [2022-07-19 23:24:36,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5639 to 5287. [2022-07-19 23:24:36,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5287 states, 3700 states have (on average 1.3472972972972972) internal successors, (4985), 3938 states have internal predecessors, (4985), 1113 states have call successors, (1113), 386 states have call predecessors, (1113), 473 states have return successors, (1644), 1070 states have call predecessors, (1644), 1110 states have call successors, (1644) [2022-07-19 23:24:36,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5287 states to 5287 states and 7742 transitions. [2022-07-19 23:24:36,831 INFO L78 Accepts]: Start accepts. Automaton has 5287 states and 7742 transitions. Word has length 35 [2022-07-19 23:24:36,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:24:36,831 INFO L495 AbstractCegarLoop]: Abstraction has 5287 states and 7742 transitions. [2022-07-19 23:24:36,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 23:24:36,831 INFO L276 IsEmpty]: Start isEmpty. Operand 5287 states and 7742 transitions. [2022-07-19 23:24:36,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-19 23:24:36,832 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:24:36,832 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:24:36,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 23:24:36,833 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:24:36,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:24:36,833 INFO L85 PathProgramCache]: Analyzing trace with hash 387341572, now seen corresponding path program 1 times [2022-07-19 23:24:36,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:24:36,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386023983] [2022-07-19 23:24:36,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:24:36,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:24:36,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:36,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:24:36,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:36,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 23:24:36,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:36,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 23:24:36,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:24:36,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386023983] [2022-07-19 23:24:36,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386023983] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:24:36,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:24:36,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:24:36,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793623850] [2022-07-19 23:24:36,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:24:36,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:24:36,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:24:36,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:24:36,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 23:24:36,980 INFO L87 Difference]: Start difference. First operand 5287 states and 7742 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 23:24:40,630 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:24:40,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:24:40,880 INFO L93 Difference]: Finished difference Result 5641 states and 8321 transitions. [2022-07-19 23:24:40,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 23:24:40,880 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 36 [2022-07-19 23:24:40,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:24:40,901 INFO L225 Difference]: With dead ends: 5641 [2022-07-19 23:24:40,901 INFO L226 Difference]: Without dead ends: 5638 [2022-07-19 23:24:40,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:24:40,904 INFO L413 NwaCegarLoop]: 1624 mSDtfsCounter, 2146 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 638 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2256 SdHoareTripleChecker+Valid, 2223 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 638 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-07-19 23:24:40,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2256 Valid, 2223 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [638 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-07-19 23:24:40,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5638 states. [2022-07-19 23:24:41,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5638 to 5286. [2022-07-19 23:24:41,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5286 states, 3700 states have (on average 1.347027027027027) internal successors, (4984), 3937 states have internal predecessors, (4984), 1112 states have call successors, (1112), 386 states have call predecessors, (1112), 473 states have return successors, (1644), 1070 states have call predecessors, (1644), 1110 states have call successors, (1644) [2022-07-19 23:24:41,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5286 states to 5286 states and 7740 transitions. [2022-07-19 23:24:41,089 INFO L78 Accepts]: Start accepts. Automaton has 5286 states and 7740 transitions. Word has length 36 [2022-07-19 23:24:41,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:24:41,090 INFO L495 AbstractCegarLoop]: Abstraction has 5286 states and 7740 transitions. [2022-07-19 23:24:41,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 23:24:41,090 INFO L276 IsEmpty]: Start isEmpty. Operand 5286 states and 7740 transitions. [2022-07-19 23:24:41,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-19 23:24:41,091 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:24:41,091 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:24:41,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 23:24:41,091 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:24:41,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:24:41,092 INFO L85 PathProgramCache]: Analyzing trace with hash -877842467, now seen corresponding path program 1 times [2022-07-19 23:24:41,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:24:41,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771765784] [2022-07-19 23:24:41,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:24:41,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:24:41,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:41,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:24:41,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:41,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 23:24:41,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:41,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 23:24:41,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:24:41,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771765784] [2022-07-19 23:24:41,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771765784] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:24:41,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:24:41,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:24:41,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449191396] [2022-07-19 23:24:41,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:24:41,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:24:41,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:24:41,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:24:41,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 23:24:41,224 INFO L87 Difference]: Start difference. First operand 5286 states and 7740 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 23:24:45,079 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:24:45,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:24:45,375 INFO L93 Difference]: Finished difference Result 5640 states and 8319 transitions. [2022-07-19 23:24:45,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 23:24:45,375 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 37 [2022-07-19 23:24:45,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:24:45,396 INFO L225 Difference]: With dead ends: 5640 [2022-07-19 23:24:45,396 INFO L226 Difference]: Without dead ends: 5620 [2022-07-19 23:24:45,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:24:45,399 INFO L413 NwaCegarLoop]: 1621 mSDtfsCounter, 2143 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 642 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2254 SdHoareTripleChecker+Valid, 2219 SdHoareTripleChecker+Invalid, 1281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 642 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-07-19 23:24:45,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2254 Valid, 2219 Invalid, 1281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [642 Valid, 638 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-07-19 23:24:45,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5620 states. [2022-07-19 23:24:45,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5620 to 5268. [2022-07-19 23:24:45,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5268 states, 3688 states have (on average 1.3473427331887202) internal successors, (4969), 3924 states have internal predecessors, (4969), 1108 states have call successors, (1108), 384 states have call predecessors, (1108), 471 states have return successors, (1641), 1067 states have call predecessors, (1641), 1107 states have call successors, (1641) [2022-07-19 23:24:45,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5268 states to 5268 states and 7718 transitions. [2022-07-19 23:24:45,585 INFO L78 Accepts]: Start accepts. Automaton has 5268 states and 7718 transitions. Word has length 37 [2022-07-19 23:24:45,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:24:45,587 INFO L495 AbstractCegarLoop]: Abstraction has 5268 states and 7718 transitions. [2022-07-19 23:24:45,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 23:24:45,587 INFO L276 IsEmpty]: Start isEmpty. Operand 5268 states and 7718 transitions. [2022-07-19 23:24:45,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-19 23:24:45,596 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:24:45,596 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-07-19 23:24:45,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 23:24:45,597 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:24:45,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:24:45,597 INFO L85 PathProgramCache]: Analyzing trace with hash -34419034, now seen corresponding path program 1 times [2022-07-19 23:24:45,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:24:45,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046845792] [2022-07-19 23:24:45,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:24:45,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:24:45,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:45,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:24:45,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:45,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:24:45,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:45,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-19 23:24:45,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:45,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:24:45,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:45,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 23:24:45,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:45,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:24:45,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:45,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-19 23:24:45,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:45,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:24:45,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:45,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 23:24:45,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:45,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-19 23:24:45,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:45,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-19 23:24:45,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:45,795 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-19 23:24:45,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:24:45,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046845792] [2022-07-19 23:24:45,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046845792] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:24:45,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:24:45,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 23:24:45,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888593471] [2022-07-19 23:24:45,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:24:45,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 23:24:45,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:24:45,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 23:24:45,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-19 23:24:45,798 INFO L87 Difference]: Start difference. First operand 5268 states and 7718 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-19 23:24:50,642 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:24:52,665 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:24:53,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:24:53,193 INFO L93 Difference]: Finished difference Result 11596 states and 17194 transitions. [2022-07-19 23:24:53,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 23:24:53,194 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 113 [2022-07-19 23:24:53,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:24:53,219 INFO L225 Difference]: With dead ends: 11596 [2022-07-19 23:24:53,219 INFO L226 Difference]: Without dead ends: 6340 [2022-07-19 23:24:53,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-07-19 23:24:53,238 INFO L413 NwaCegarLoop]: 1699 mSDtfsCounter, 1417 mSDsluCounter, 3458 mSDsCounter, 0 mSdLazyCounter, 1749 mSolverCounterSat, 906 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1432 SdHoareTripleChecker+Valid, 5157 SdHoareTripleChecker+Invalid, 2657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 906 IncrementalHoareTripleChecker+Valid, 1749 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-07-19 23:24:53,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1432 Valid, 5157 Invalid, 2657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [906 Valid, 1749 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-07-19 23:24:53,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6340 states. [2022-07-19 23:24:53,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6340 to 5572. [2022-07-19 23:24:53,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5572 states, 3935 states have (on average 1.3468869123252858) internal successors, (5300), 4173 states have internal predecessors, (5300), 1138 states have call successors, (1138), 389 states have call predecessors, (1138), 498 states have return successors, (1753), 1117 states have call predecessors, (1753), 1137 states have call successors, (1753) [2022-07-19 23:24:53,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5572 states to 5572 states and 8191 transitions. [2022-07-19 23:24:53,492 INFO L78 Accepts]: Start accepts. Automaton has 5572 states and 8191 transitions. Word has length 113 [2022-07-19 23:24:53,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:24:53,492 INFO L495 AbstractCegarLoop]: Abstraction has 5572 states and 8191 transitions. [2022-07-19 23:24:53,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-19 23:24:53,492 INFO L276 IsEmpty]: Start isEmpty. Operand 5572 states and 8191 transitions. [2022-07-19 23:24:53,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-19 23:24:53,504 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:24:53,505 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:24:53,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-19 23:24:53,505 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:24:53,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:24:53,505 INFO L85 PathProgramCache]: Analyzing trace with hash 189635978, now seen corresponding path program 1 times [2022-07-19 23:24:53,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:24:53,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105916835] [2022-07-19 23:24:53,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:24:53,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:24:53,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:53,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:24:53,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:53,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 23:24:53,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:53,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:24:53,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:53,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 23:24:53,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:53,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-19 23:24:53,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:53,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:24:53,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:53,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-19 23:24:53,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:53,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:24:53,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:53,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-19 23:24:53,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:53,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:24:53,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:53,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 23:24:53,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:53,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-19 23:24:53,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:53,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-19 23:24:53,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:53,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-19 23:24:53,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:53,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 23:24:53,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:53,745 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-07-19 23:24:53,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:24:53,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105916835] [2022-07-19 23:24:53,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105916835] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:24:53,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:24:53,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 23:24:53,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967479225] [2022-07-19 23:24:53,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:24:53,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 23:24:53,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:24:53,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 23:24:53,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-19 23:24:53,748 INFO L87 Difference]: Start difference. First operand 5572 states and 8191 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-19 23:24:58,377 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:24:58,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:24:58,814 INFO L93 Difference]: Finished difference Result 11904 states and 17677 transitions. [2022-07-19 23:24:58,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 23:24:58,814 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 142 [2022-07-19 23:24:58,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:24:58,836 INFO L225 Difference]: With dead ends: 11904 [2022-07-19 23:24:58,836 INFO L226 Difference]: Without dead ends: 6348 [2022-07-19 23:24:58,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-19 23:24:58,854 INFO L413 NwaCegarLoop]: 1693 mSDtfsCounter, 2002 mSDsluCounter, 3024 mSDsCounter, 0 mSdLazyCounter, 1330 mSolverCounterSat, 1336 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2011 SdHoareTripleChecker+Valid, 4717 SdHoareTripleChecker+Invalid, 2667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1336 IncrementalHoareTripleChecker+Valid, 1330 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-07-19 23:24:58,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2011 Valid, 4717 Invalid, 2667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1336 Valid, 1330 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-07-19 23:24:58,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6348 states. [2022-07-19 23:24:59,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6348 to 5580. [2022-07-19 23:24:59,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5580 states, 3943 states have (on average 1.3461831093076337) internal successors, (5308), 4181 states have internal predecessors, (5308), 1138 states have call successors, (1138), 389 states have call predecessors, (1138), 498 states have return successors, (1753), 1117 states have call predecessors, (1753), 1137 states have call successors, (1753) [2022-07-19 23:24:59,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5580 states to 5580 states and 8199 transitions. [2022-07-19 23:24:59,055 INFO L78 Accepts]: Start accepts. Automaton has 5580 states and 8199 transitions. Word has length 142 [2022-07-19 23:24:59,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:24:59,055 INFO L495 AbstractCegarLoop]: Abstraction has 5580 states and 8199 transitions. [2022-07-19 23:24:59,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-19 23:24:59,055 INFO L276 IsEmpty]: Start isEmpty. Operand 5580 states and 8199 transitions. [2022-07-19 23:24:59,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-07-19 23:24:59,064 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:24:59,064 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:24:59,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-19 23:24:59,065 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:24:59,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:24:59,065 INFO L85 PathProgramCache]: Analyzing trace with hash 66970766, now seen corresponding path program 1 times [2022-07-19 23:24:59,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:24:59,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422501280] [2022-07-19 23:24:59,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:24:59,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:24:59,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:59,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:24:59,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:59,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 23:24:59,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:59,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:24:59,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:59,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 23:24:59,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:59,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-19 23:24:59,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:59,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:24:59,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:59,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-19 23:24:59,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:59,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:24:59,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:59,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 23:24:59,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:59,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:24:59,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:59,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 23:24:59,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:59,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-19 23:24:59,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:59,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-19 23:24:59,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:59,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-19 23:24:59,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:59,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 23:24:59,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:24:59,339 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-07-19 23:24:59,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:24:59,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422501280] [2022-07-19 23:24:59,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422501280] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 23:24:59,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1789214654] [2022-07-19 23:24:59,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:24:59,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 23:24:59,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 23:24:59,342 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) [2022-07-19 23:24:59,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-19 23:25:00,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:00,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 3692 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 23:25:00,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:25:00,072 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 23 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-19 23:25:00,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 23:25:00,153 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-07-19 23:25:00,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1789214654] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 23:25:00,153 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 23:25:00,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 9 [2022-07-19 23:25:00,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452310331] [2022-07-19 23:25:00,154 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 23:25:00,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 23:25:00,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:25:00,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 23:25:00,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-07-19 23:25:00,155 INFO L87 Difference]: Start difference. First operand 5580 states and 8199 transitions. Second operand has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 5 states have internal predecessors, (127), 2 states have call successors, (35), 6 states have call predecessors, (35), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-19 23:25:05,225 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:25:07,245 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:25:07,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:25:07,677 INFO L93 Difference]: Finished difference Result 11920 states and 17693 transitions. [2022-07-19 23:25:07,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 23:25:07,678 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 5 states have internal predecessors, (127), 2 states have call successors, (35), 6 states have call predecessors, (35), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 144 [2022-07-19 23:25:07,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:25:07,702 INFO L225 Difference]: With dead ends: 11920 [2022-07-19 23:25:07,703 INFO L226 Difference]: Without dead ends: 6356 [2022-07-19 23:25:07,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-19 23:25:07,722 INFO L413 NwaCegarLoop]: 1684 mSDtfsCounter, 2005 mSDsluCounter, 4440 mSDsCounter, 0 mSdLazyCounter, 1780 mSolverCounterSat, 1347 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2014 SdHoareTripleChecker+Valid, 6124 SdHoareTripleChecker+Invalid, 3128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1347 IncrementalHoareTripleChecker+Valid, 1780 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-07-19 23:25:07,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2014 Valid, 6124 Invalid, 3128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1347 Valid, 1780 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2022-07-19 23:25:07,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6356 states. [2022-07-19 23:25:07,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6356 to 5596. [2022-07-19 23:25:07,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5596 states, 3959 states have (on average 1.3447840363728214) internal successors, (5324), 4197 states have internal predecessors, (5324), 1138 states have call successors, (1138), 389 states have call predecessors, (1138), 498 states have return successors, (1753), 1117 states have call predecessors, (1753), 1137 states have call successors, (1753) [2022-07-19 23:25:07,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5596 states to 5596 states and 8215 transitions. [2022-07-19 23:25:07,971 INFO L78 Accepts]: Start accepts. Automaton has 5596 states and 8215 transitions. Word has length 144 [2022-07-19 23:25:07,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:25:07,972 INFO L495 AbstractCegarLoop]: Abstraction has 5596 states and 8215 transitions. [2022-07-19 23:25:07,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 5 states have internal predecessors, (127), 2 states have call successors, (35), 6 states have call predecessors, (35), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-19 23:25:07,972 INFO L276 IsEmpty]: Start isEmpty. Operand 5596 states and 8215 transitions. [2022-07-19 23:25:07,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-07-19 23:25:07,983 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:25:07,983 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 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] [2022-07-19 23:25:08,017 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-19 23:25:08,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-19 23:25:08,197 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:25:08,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:25:08,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1850180974, now seen corresponding path program 2 times [2022-07-19 23:25:08,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:25:08,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474871674] [2022-07-19 23:25:08,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:25:08,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:25:08,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:08,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:25:08,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:08,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 23:25:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:08,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:25:08,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:08,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 23:25:08,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:08,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-19 23:25:08,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:08,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:25:08,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:08,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 23:25:08,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:08,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:25:08,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:08,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-19 23:25:08,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:08,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:25:08,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:08,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 23:25:08,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:08,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-19 23:25:08,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:08,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-19 23:25:08,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:08,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-19 23:25:08,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:08,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 23:25:08,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:08,448 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-19 23:25:08,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:25:08,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474871674] [2022-07-19 23:25:08,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474871674] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:25:08,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:25:08,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 23:25:08,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521378831] [2022-07-19 23:25:08,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:25:08,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 23:25:08,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:25:08,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 23:25:08,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-07-19 23:25:08,451 INFO L87 Difference]: Start difference. First operand 5596 states and 8215 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-19 23:25:16,211 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:25:18,233 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:25:20,995 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:25:22,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:25:22,209 INFO L93 Difference]: Finished difference Result 18282 states and 27193 transitions. [2022-07-19 23:25:22,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-19 23:25:22,210 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 146 [2022-07-19 23:25:22,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:25:22,255 INFO L225 Difference]: With dead ends: 18282 [2022-07-19 23:25:22,255 INFO L226 Difference]: Without dead ends: 12702 [2022-07-19 23:25:22,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2022-07-19 23:25:22,272 INFO L413 NwaCegarLoop]: 3303 mSDtfsCounter, 3040 mSDsluCounter, 9641 mSDsCounter, 0 mSdLazyCounter, 4621 mSolverCounterSat, 1470 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3158 SdHoareTripleChecker+Valid, 12944 SdHoareTripleChecker+Invalid, 6094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1470 IncrementalHoareTripleChecker+Valid, 4621 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2022-07-19 23:25:22,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3158 Valid, 12944 Invalid, 6094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1470 Valid, 4621 Invalid, 3 Unknown, 0 Unchecked, 13.1s Time] [2022-07-19 23:25:22,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12702 states. [2022-07-19 23:25:22,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12702 to 5604. [2022-07-19 23:25:22,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5604 states, 3967 states have (on average 1.3440887320393244) internal successors, (5332), 4205 states have internal predecessors, (5332), 1138 states have call successors, (1138), 389 states have call predecessors, (1138), 498 states have return successors, (1753), 1117 states have call predecessors, (1753), 1137 states have call successors, (1753) [2022-07-19 23:25:22,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5604 states to 5604 states and 8223 transitions. [2022-07-19 23:25:22,712 INFO L78 Accepts]: Start accepts. Automaton has 5604 states and 8223 transitions. Word has length 146 [2022-07-19 23:25:22,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:25:22,713 INFO L495 AbstractCegarLoop]: Abstraction has 5604 states and 8223 transitions. [2022-07-19 23:25:22,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-19 23:25:22,713 INFO L276 IsEmpty]: Start isEmpty. Operand 5604 states and 8223 transitions. [2022-07-19 23:25:22,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-07-19 23:25:22,723 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:25:22,724 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 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] [2022-07-19 23:25:22,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-19 23:25:22,724 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:25:22,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:25:22,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1709632364, now seen corresponding path program 1 times [2022-07-19 23:25:22,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:25:22,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78214734] [2022-07-19 23:25:22,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:25:22,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:25:22,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:22,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:25:22,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:22,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 23:25:22,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:22,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:25:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:22,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 23:25:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:22,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-19 23:25:22,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:22,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:25:22,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:22,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 23:25:22,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:22,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:25:22,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:23,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-19 23:25:23,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:23,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:25:23,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:23,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 23:25:23,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:23,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-19 23:25:23,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:23,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-19 23:25:23,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:23,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-19 23:25:23,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:23,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 23:25:23,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:23,059 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-07-19 23:25:23,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:25:23,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78214734] [2022-07-19 23:25:23,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78214734] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 23:25:23,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391765185] [2022-07-19 23:25:23,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:25:23,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 23:25:23,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 23:25:23,062 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 23:25:23,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-19 23:25:23,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:23,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 3728 conjuncts, 43 conjunts are in the unsatisfiable core [2022-07-19 23:25:23,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:25:23,946 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-19 23:25:23,946 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:25:23,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391765185] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:25:23,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 23:25:23,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 15 [2022-07-19 23:25:23,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270728249] [2022-07-19 23:25:23,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:25:23,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 23:25:23,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:25:23,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 23:25:23,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2022-07-19 23:25:23,948 INFO L87 Difference]: Start difference. First operand 5604 states and 8223 transitions. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 7 states have internal predecessors, (103), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 4 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-19 23:25:26,405 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:25:26,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:25:26,516 INFO L93 Difference]: Finished difference Result 11453 states and 16809 transitions. [2022-07-19 23:25:26,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 23:25:26,517 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 7 states have internal predecessors, (103), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 4 states have call predecessors, (15), 2 states have call successors, (15) Word has length 146 [2022-07-19 23:25:26,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:25:26,541 INFO L225 Difference]: With dead ends: 11453 [2022-07-19 23:25:26,541 INFO L226 Difference]: Without dead ends: 5865 [2022-07-19 23:25:26,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 168 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-07-19 23:25:26,558 INFO L413 NwaCegarLoop]: 1841 mSDtfsCounter, 130 mSDsluCounter, 12696 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 14537 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-19 23:25:26,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 14537 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 77 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-07-19 23:25:26,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5865 states. [2022-07-19 23:25:26,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5865 to 5616. [2022-07-19 23:25:26,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5616 states, 3979 states have (on average 1.3430510178436794) internal successors, (5344), 4213 states have internal predecessors, (5344), 1138 states have call successors, (1138), 389 states have call predecessors, (1138), 498 states have return successors, (1753), 1121 states have call predecessors, (1753), 1137 states have call successors, (1753) [2022-07-19 23:25:26,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5616 states to 5616 states and 8235 transitions. [2022-07-19 23:25:26,911 INFO L78 Accepts]: Start accepts. Automaton has 5616 states and 8235 transitions. Word has length 146 [2022-07-19 23:25:26,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:25:26,911 INFO L495 AbstractCegarLoop]: Abstraction has 5616 states and 8235 transitions. [2022-07-19 23:25:26,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 7 states have internal predecessors, (103), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 4 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-19 23:25:26,911 INFO L276 IsEmpty]: Start isEmpty. Operand 5616 states and 8235 transitions. [2022-07-19 23:25:26,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-07-19 23:25:26,922 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:25:26,922 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2022-07-19 23:25:26,954 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-19 23:25:27,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-19 23:25:27,127 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:25:27,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:25:27,128 INFO L85 PathProgramCache]: Analyzing trace with hash -348627764, now seen corresponding path program 1 times [2022-07-19 23:25:27,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:25:27,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848482178] [2022-07-19 23:25:27,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:25:27,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:25:27,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:27,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:25:27,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:27,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 23:25:27,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:27,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:25:27,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:27,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 23:25:27,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:27,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-19 23:25:27,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:27,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:25:27,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:27,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:25:27,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:27,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-19 23:25:27,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:27,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:25:27,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:27,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-19 23:25:27,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:27,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:25:27,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:27,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 23:25:27,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:27,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-19 23:25:27,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:27,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-19 23:25:27,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:27,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-19 23:25:27,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:27,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 23:25:27,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:27,441 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-07-19 23:25:27,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:25:27,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848482178] [2022-07-19 23:25:27,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848482178] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 23:25:27,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [944598259] [2022-07-19 23:25:27,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:25:27,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 23:25:27,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 23:25:27,449 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 23:25:27,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-19 23:25:28,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:28,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 3754 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-19 23:25:28,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:25:28,266 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-19 23:25:28,267 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:25:28,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [944598259] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:25:28,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 23:25:28,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-07-19 23:25:28,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226196911] [2022-07-19 23:25:28,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:25:28,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 23:25:28,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:25:28,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 23:25:28,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-07-19 23:25:28,268 INFO L87 Difference]: Start difference. First operand 5616 states and 8235 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-19 23:25:28,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:25:28,624 INFO L93 Difference]: Finished difference Result 11769 states and 17343 transitions. [2022-07-19 23:25:28,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 23:25:28,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 152 [2022-07-19 23:25:28,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:25:28,646 INFO L225 Difference]: With dead ends: 11769 [2022-07-19 23:25:28,647 INFO L226 Difference]: Without dead ends: 6169 [2022-07-19 23:25:28,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-07-19 23:25:28,661 INFO L413 NwaCegarLoop]: 1863 mSDtfsCounter, 134 mSDsluCounter, 1748 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 3611 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 23:25:28,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 3611 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 23:25:28,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6169 states. [2022-07-19 23:25:28,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6169 to 5620. [2022-07-19 23:25:28,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5620 states, 3983 states have (on average 1.342706502636204) internal successors, (5348), 4217 states have internal predecessors, (5348), 1138 states have call successors, (1138), 389 states have call predecessors, (1138), 498 states have return successors, (1753), 1121 states have call predecessors, (1753), 1137 states have call successors, (1753) [2022-07-19 23:25:28,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5620 states to 5620 states and 8239 transitions. [2022-07-19 23:25:28,969 INFO L78 Accepts]: Start accepts. Automaton has 5620 states and 8239 transitions. Word has length 152 [2022-07-19 23:25:28,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:25:28,970 INFO L495 AbstractCegarLoop]: Abstraction has 5620 states and 8239 transitions. [2022-07-19 23:25:28,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-19 23:25:28,970 INFO L276 IsEmpty]: Start isEmpty. Operand 5620 states and 8239 transitions. [2022-07-19 23:25:28,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-19 23:25:28,980 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:25:28,980 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 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] [2022-07-19 23:25:29,006 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-19 23:25:29,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 23:25:29,195 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:25:29,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:25:29,196 INFO L85 PathProgramCache]: Analyzing trace with hash 34508044, now seen corresponding path program 1 times [2022-07-19 23:25:29,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:25:29,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963684476] [2022-07-19 23:25:29,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:25:29,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:25:29,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:29,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:25:29,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:29,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 23:25:29,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:29,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:25:29,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:29,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 23:25:29,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:29,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-19 23:25:29,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:29,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:25:29,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:29,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:25:29,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:29,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-19 23:25:29,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:29,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:25:29,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:29,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-19 23:25:29,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:29,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:25:29,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:29,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-19 23:25:29,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:29,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:25:29,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:29,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 23:25:29,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:29,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-19 23:25:29,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:29,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-19 23:25:29,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:29,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-19 23:25:29,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:29,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 23:25:29,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:29,487 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-07-19 23:25:29,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:25:29,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963684476] [2022-07-19 23:25:29,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963684476] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 23:25:29,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727415187] [2022-07-19 23:25:29,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:25:29,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 23:25:29,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 23:25:29,489 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 23:25:29,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-19 23:25:30,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:30,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 3804 conjuncts, 19 conjunts are in the unsatisfiable core [2022-07-19 23:25:30,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:25:30,260 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-19 23:25:30,261 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:25:30,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727415187] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:25:30,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 23:25:30,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 9 [2022-07-19 23:25:30,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539767839] [2022-07-19 23:25:30,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:25:30,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 23:25:30,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:25:30,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 23:25:30,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-07-19 23:25:30,262 INFO L87 Difference]: Start difference. First operand 5620 states and 8239 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-19 23:25:30,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:25:30,539 INFO L93 Difference]: Finished difference Result 11232 states and 16469 transitions. [2022-07-19 23:25:30,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 23:25:30,539 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 163 [2022-07-19 23:25:30,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:25:30,559 INFO L225 Difference]: With dead ends: 11232 [2022-07-19 23:25:30,559 INFO L226 Difference]: Without dead ends: 5620 [2022-07-19 23:25:30,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 195 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-07-19 23:25:30,574 INFO L413 NwaCegarLoop]: 1754 mSDtfsCounter, 0 mSDsluCounter, 5248 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7002 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 23:25:30,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7002 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 23:25:30,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5620 states. [2022-07-19 23:25:30,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5620 to 5620. [2022-07-19 23:25:30,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5620 states, 3983 states have (on average 1.342706502636204) internal successors, (5348), 4217 states have internal predecessors, (5348), 1138 states have call successors, (1138), 389 states have call predecessors, (1138), 498 states have return successors, (1749), 1121 states have call predecessors, (1749), 1137 states have call successors, (1749) [2022-07-19 23:25:30,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5620 states to 5620 states and 8235 transitions. [2022-07-19 23:25:30,812 INFO L78 Accepts]: Start accepts. Automaton has 5620 states and 8235 transitions. Word has length 163 [2022-07-19 23:25:30,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:25:30,813 INFO L495 AbstractCegarLoop]: Abstraction has 5620 states and 8235 transitions. [2022-07-19 23:25:30,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-19 23:25:30,813 INFO L276 IsEmpty]: Start isEmpty. Operand 5620 states and 8235 transitions. [2022-07-19 23:25:30,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-07-19 23:25:30,824 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:25:30,824 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 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] [2022-07-19 23:25:30,849 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-19 23:25:31,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 23:25:31,039 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:25:31,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:25:31,040 INFO L85 PathProgramCache]: Analyzing trace with hash 794779412, now seen corresponding path program 2 times [2022-07-19 23:25:31,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:25:31,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930996757] [2022-07-19 23:25:31,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:25:31,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:25:31,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:31,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:25:31,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:31,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 23:25:31,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:31,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:25:31,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:31,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 23:25:31,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:31,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:25:31,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:31,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-19 23:25:31,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:31,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:25:31,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:31,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:25:31,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:31,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-19 23:25:31,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:31,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:25:31,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:31,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-19 23:25:31,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:31,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:25:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:31,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-19 23:25:31,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:31,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:25:31,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:31,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 23:25:31,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:31,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-19 23:25:31,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:31,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-19 23:25:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:31,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-19 23:25:31,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:31,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 23:25:31,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:31,435 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-07-19 23:25:31,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:25:31,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930996757] [2022-07-19 23:25:31,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930996757] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 23:25:31,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621398378] [2022-07-19 23:25:31,436 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-19 23:25:31,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 23:25:31,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 23:25:31,437 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 23:25:31,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-19 23:25:32,148 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-19 23:25:32,149 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 23:25:32,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 3830 conjuncts, 21 conjunts are in the unsatisfiable core [2022-07-19 23:25:32,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:25:32,493 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-07-19 23:25:32,493 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:25:32,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621398378] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:25:32,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 23:25:32,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 14 [2022-07-19 23:25:32,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704783541] [2022-07-19 23:25:32,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:25:32,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 23:25:32,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:25:32,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 23:25:32,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-07-19 23:25:32,495 INFO L87 Difference]: Start difference. First operand 5620 states and 8235 transitions. Second operand has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 5 states have internal predecessors, (109), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-19 23:25:32,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:25:32,931 INFO L93 Difference]: Finished difference Result 11224 states and 16549 transitions. [2022-07-19 23:25:32,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 23:25:32,932 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 5 states have internal predecessors, (109), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) Word has length 169 [2022-07-19 23:25:32,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:25:32,953 INFO L225 Difference]: With dead ends: 11224 [2022-07-19 23:25:32,953 INFO L226 Difference]: Without dead ends: 5620 [2022-07-19 23:25:32,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 201 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2022-07-19 23:25:32,969 INFO L413 NwaCegarLoop]: 2181 mSDtfsCounter, 1866 mSDsluCounter, 8275 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1873 SdHoareTripleChecker+Valid, 10456 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 23:25:32,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1873 Valid, 10456 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 23:25:32,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5620 states. [2022-07-19 23:25:33,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5620 to 5620. [2022-07-19 23:25:33,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5620 states, 3983 states have (on average 1.3417022344966105) internal successors, (5344), 4217 states have internal predecessors, (5344), 1138 states have call successors, (1138), 389 states have call predecessors, (1138), 498 states have return successors, (1749), 1121 states have call predecessors, (1749), 1137 states have call successors, (1749) [2022-07-19 23:25:33,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5620 states to 5620 states and 8231 transitions. [2022-07-19 23:25:33,302 INFO L78 Accepts]: Start accepts. Automaton has 5620 states and 8231 transitions. Word has length 169 [2022-07-19 23:25:33,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:25:33,303 INFO L495 AbstractCegarLoop]: Abstraction has 5620 states and 8231 transitions. [2022-07-19 23:25:33,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 5 states have internal predecessors, (109), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-19 23:25:33,303 INFO L276 IsEmpty]: Start isEmpty. Operand 5620 states and 8231 transitions. [2022-07-19 23:25:33,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-07-19 23:25:33,316 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:25:33,316 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-19 23:25:33,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-19 23:25:33,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-07-19 23:25:33,531 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:25:33,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:25:33,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1528264412, now seen corresponding path program 3 times [2022-07-19 23:25:33,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:25:33,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815732921] [2022-07-19 23:25:33,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:25:33,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:25:33,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:33,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:25:33,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:33,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 23:25:33,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:33,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:25:33,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:33,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 23:25:33,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:33,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:25:33,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:33,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-19 23:25:33,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:33,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:25:33,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:33,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:25:33,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:33,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-19 23:25:33,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:33,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:25:33,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:33,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-19 23:25:33,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:33,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:25:33,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:33,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-19 23:25:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:33,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:25:33,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:33,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:25:33,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:33,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 23:25:33,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:33,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-19 23:25:33,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:33,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-19 23:25:33,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:33,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-19 23:25:33,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:33,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 23:25:33,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:33,941 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-07-19 23:25:33,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:25:33,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815732921] [2022-07-19 23:25:33,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815732921] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 23:25:33,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646382964] [2022-07-19 23:25:33,941 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-19 23:25:33,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 23:25:33,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 23:25:33,943 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 23:25:33,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-19 23:25:34,599 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-07-19 23:25:34,599 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 23:25:34,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 3320 conjuncts, 52 conjunts are in the unsatisfiable core [2022-07-19 23:25:34,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:25:34,920 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-07-19 23:25:34,920 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:25:34,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1646382964] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:25:34,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 23:25:34,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [11] total 23 [2022-07-19 23:25:34,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651593503] [2022-07-19 23:25:34,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:25:34,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-19 23:25:34,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:25:34,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-19 23:25:34,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2022-07-19 23:25:34,922 INFO L87 Difference]: Start difference. First operand 5620 states and 8231 transitions. Second operand has 14 states, 13 states have (on average 8.692307692307692) internal successors, (113), 11 states have internal predecessors, (113), 4 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) [2022-07-19 23:25:37,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:25:37,376 INFO L93 Difference]: Finished difference Result 11871 states and 17611 transitions. [2022-07-19 23:25:37,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-19 23:25:37,377 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.692307692307692) internal successors, (113), 11 states have internal predecessors, (113), 4 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) Word has length 175 [2022-07-19 23:25:37,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:25:37,405 INFO L225 Difference]: With dead ends: 11871 [2022-07-19 23:25:37,405 INFO L226 Difference]: Without dead ends: 6267 [2022-07-19 23:25:37,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=121, Invalid=1211, Unknown=0, NotChecked=0, Total=1332 [2022-07-19 23:25:37,423 INFO L413 NwaCegarLoop]: 3677 mSDtfsCounter, 2136 mSDsluCounter, 42247 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2167 SdHoareTripleChecker+Valid, 45924 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-19 23:25:37,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2167 Valid, 45924 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-19 23:25:37,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6267 states. [2022-07-19 23:25:37,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6267 to 5618. [2022-07-19 23:25:37,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5618 states, 3981 states have (on average 1.340366742024617) internal successors, (5336), 4215 states have internal predecessors, (5336), 1138 states have call successors, (1138), 389 states have call predecessors, (1138), 498 states have return successors, (1749), 1121 states have call predecessors, (1749), 1137 states have call successors, (1749) [2022-07-19 23:25:37,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5618 states to 5618 states and 8223 transitions. [2022-07-19 23:25:37,785 INFO L78 Accepts]: Start accepts. Automaton has 5618 states and 8223 transitions. Word has length 175 [2022-07-19 23:25:37,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:25:37,786 INFO L495 AbstractCegarLoop]: Abstraction has 5618 states and 8223 transitions. [2022-07-19 23:25:37,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.692307692307692) internal successors, (113), 11 states have internal predecessors, (113), 4 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) [2022-07-19 23:25:37,786 INFO L276 IsEmpty]: Start isEmpty. Operand 5618 states and 8223 transitions. [2022-07-19 23:25:37,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-07-19 23:25:37,805 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:25:37,805 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2022-07-19 23:25:37,837 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-19 23:25:38,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-19 23:25:38,021 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:25:38,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:25:38,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1090941869, now seen corresponding path program 1 times [2022-07-19 23:25:38,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:25:38,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439402242] [2022-07-19 23:25:38,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:25:38,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:25:38,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:38,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:25:38,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:38,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 23:25:38,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:38,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:25:38,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:38,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 23:25:38,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:38,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:25:38,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:38,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-19 23:25:38,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:38,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:25:38,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:38,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:25:38,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:38,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-19 23:25:38,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:38,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:25:38,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:38,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-19 23:25:38,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:38,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:25:38,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:38,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-19 23:25:38,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:38,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:25:38,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:38,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 23:25:38,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:38,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-19 23:25:38,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:38,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-19 23:25:38,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:38,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-19 23:25:38,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:38,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:25:38,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:38,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:25:38,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:38,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 23:25:38,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:38,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-19 23:25:38,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:38,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-19 23:25:38,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:38,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-19 23:25:38,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:38,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-19 23:25:38,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:38,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 23:25:38,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:38,465 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-19 23:25:38,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:25:38,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439402242] [2022-07-19 23:25:38,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439402242] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 23:25:38,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583192025] [2022-07-19 23:25:38,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:25:38,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 23:25:38,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 23:25:38,467 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 23:25:38,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-19 23:25:39,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:39,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 4258 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-19 23:25:39,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:25:39,500 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-07-19 23:25:39,500 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:25:39,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1583192025] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:25:39,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 23:25:39,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 16 [2022-07-19 23:25:39,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469442695] [2022-07-19 23:25:39,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:25:39,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 23:25:39,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:25:39,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 23:25:39,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-07-19 23:25:39,502 INFO L87 Difference]: Start difference. First operand 5618 states and 8223 transitions. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (23), 4 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-19 23:25:39,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:25:39,930 INFO L93 Difference]: Finished difference Result 11777 states and 17319 transitions. [2022-07-19 23:25:39,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 23:25:39,931 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (23), 4 states have call predecessors, (23), 2 states have call successors, (23) Word has length 215 [2022-07-19 23:25:39,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:25:39,953 INFO L225 Difference]: With dead ends: 11777 [2022-07-19 23:25:39,953 INFO L226 Difference]: Without dead ends: 6175 [2022-07-19 23:25:39,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 259 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-07-19 23:25:39,966 INFO L413 NwaCegarLoop]: 1853 mSDtfsCounter, 140 mSDsluCounter, 9143 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 10996 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 23:25:39,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 10996 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 23:25:39,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6175 states. [2022-07-19 23:25:40,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6175 to 5622. [2022-07-19 23:25:40,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5622 states, 3985 states have (on average 1.3400250941028857) internal successors, (5340), 4215 states have internal predecessors, (5340), 1138 states have call successors, (1138), 389 states have call predecessors, (1138), 498 states have return successors, (1749), 1125 states have call predecessors, (1749), 1137 states have call successors, (1749) [2022-07-19 23:25:40,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5622 states to 5622 states and 8227 transitions. [2022-07-19 23:25:40,251 INFO L78 Accepts]: Start accepts. Automaton has 5622 states and 8227 transitions. Word has length 215 [2022-07-19 23:25:40,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:25:40,251 INFO L495 AbstractCegarLoop]: Abstraction has 5622 states and 8227 transitions. [2022-07-19 23:25:40,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (23), 4 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-19 23:25:40,252 INFO L276 IsEmpty]: Start isEmpty. Operand 5622 states and 8227 transitions. [2022-07-19 23:25:40,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-07-19 23:25:40,263 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:25:40,263 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-19 23:25:40,288 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-07-19 23:25:40,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 23:25:40,486 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:25:40,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:25:40,487 INFO L85 PathProgramCache]: Analyzing trace with hash 2056312139, now seen corresponding path program 2 times [2022-07-19 23:25:40,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:25:40,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949097019] [2022-07-19 23:25:40,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:25:40,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:25:40,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:40,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:25:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:40,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 23:25:40,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:40,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:25:40,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:40,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 23:25:40,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:40,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:25:40,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:40,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-19 23:25:40,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:40,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:25:40,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:40,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:25:40,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:40,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-19 23:25:40,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:40,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:25:40,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:40,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-19 23:25:40,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:40,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:25:40,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:40,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:25:40,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:40,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-19 23:25:40,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:40,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:25:40,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:40,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 23:25:40,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:40,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-19 23:25:40,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:40,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-19 23:25:40,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:40,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-19 23:25:40,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:40,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:25:40,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:40,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:25:40,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:40,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 23:25:40,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:40,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-19 23:25:40,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:41,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-19 23:25:41,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:41,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-19 23:25:41,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:41,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-19 23:25:41,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:41,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 23:25:41,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:25:41,030 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-07-19 23:25:41,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:25:41,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949097019] [2022-07-19 23:25:41,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949097019] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 23:25:41,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792005665] [2022-07-19 23:25:41,031 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-19 23:25:41,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 23:25:41,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 23:25:41,033 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 23:25:41,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-19 23:25:41,930 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-19 23:25:41,930 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 23:25:41,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 4284 conjuncts, 124 conjunts are in the unsatisfiable core [2022-07-19 23:25:41,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:25:42,716 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-07-19 23:25:42,720 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-07-19 23:25:42,724 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 61 proven. 22 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-07-19 23:25:42,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 23:25:43,283 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-07-19 23:25:43,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792005665] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 23:25:43,283 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 23:25:43,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 17, 8] total 32 [2022-07-19 23:25:43,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510558575] [2022-07-19 23:25:43,283 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 23:25:43,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-07-19 23:25:43,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:25:43,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-07-19 23:25:43,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=887, Unknown=0, NotChecked=0, Total=992 [2022-07-19 23:25:43,285 INFO L87 Difference]: Start difference. First operand 5622 states and 8227 transitions. Second operand has 32 states, 32 states have (on average 9.65625) internal successors, (309), 22 states have internal predecessors, (309), 8 states have call successors, (66), 9 states have call predecessors, (66), 9 states have return successors, (59), 14 states have call predecessors, (59), 8 states have call successors, (59) [2022-07-19 23:25:58,111 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:00,134 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:03,685 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:05,704 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:07,720 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:09,742 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:11,730 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:13,752 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:15,769 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:17,789 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:19,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:21,820 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:23,835 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:25,855 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:27,875 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:29,892 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:31,908 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:33,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:35,613 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:37,630 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:39,647 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:41,661 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:49,920 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:51,939 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:54,827 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:57,529 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:26:59,553 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:01,569 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:03,584 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:05,600 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:07,624 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:09,638 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:11,654 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:13,672 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:15,690 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:17,709 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:19,732 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:21,748 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:23,766 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:25,783 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:27,801 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:29,822 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:34,597 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:41,443 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:43,465 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:45,484 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:47,502 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:49,521 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:51,536 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:53,551 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:55,571 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:57,586 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:27:59,602 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:28:01,618 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:28:03,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:28:05,457 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []