./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 6c24879c 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-?-6c24879 [2022-07-12 12:21:47,967 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 12:21:47,982 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 12:21:48,043 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 12:21:48,047 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 12:21:48,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 12:21:48,050 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 12:21:48,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 12:21:48,058 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 12:21:48,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 12:21:48,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 12:21:48,062 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 12:21:48,075 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 12:21:48,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 12:21:48,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 12:21:48,082 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 12:21:48,084 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 12:21:48,088 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 12:21:48,090 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 12:21:48,093 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 12:21:48,096 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 12:21:48,101 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 12:21:48,102 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 12:21:48,103 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 12:21:48,104 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 12:21:48,106 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 12:21:48,119 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 12:21:48,120 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 12:21:48,122 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 12:21:48,122 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 12:21:48,123 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 12:21:48,124 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 12:21:48,125 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 12:21:48,126 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 12:21:48,126 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 12:21:48,127 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 12:21:48,127 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 12:21:48,128 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 12:21:48,128 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 12:21:48,128 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 12:21:48,129 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 12:21:48,133 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 12:21:48,134 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 12:21:48,180 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 12:21:48,195 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 12:21:48,196 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 12:21:48,196 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 12:21:48,197 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 12:21:48,197 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 12:21:48,197 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 12:21:48,198 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 12:21:48,198 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 12:21:48,199 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 12:21:48,199 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 12:21:48,199 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 12:21:48,199 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 12:21:48,200 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 12:21:48,200 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 12:21:48,200 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 12:21:48,200 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 12:21:48,200 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 12:21:48,201 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 12:21:48,201 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 12:21:48,201 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 12:21:48,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:21:48,201 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 12:21:48,202 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 12:21:48,202 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 12:21:48,202 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 12:21:48,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 12:21:48,202 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 12:21:48,203 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 12:21:48,203 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 12:21:48,203 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a0b87150f68c4dfa6a57a3698556eda427efd851a248be648b2e5c8b3a3f4dd [2022-07-12 12:21:48,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 12:21:48,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 12:21:48,704 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 12:21:48,705 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 12:21:48,705 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 12:21:48,707 INFO L432 ainManager$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 [2022-07-12 12:21:48,851 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b74a3c05b/57aa0822f319421181769b69339d7f64/FLAG8cd2e57fd [2022-07-12 12:21:50,064 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 12:21:50,065 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 [2022-07-12 12:21:50,155 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b74a3c05b/57aa0822f319421181769b69339d7f64/FLAG8cd2e57fd [2022-07-12 12:21:50,181 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b74a3c05b/57aa0822f319421181769b69339d7f64 [2022-07-12 12:21:50,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 12:21:50,187 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 12:21:50,189 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 12:21:50,189 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 12:21:50,192 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 12:21:50,193 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:21:50" (1/1) ... [2022-07-12 12:21:50,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ec9f3d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:21:50, skipping insertion in model container [2022-07-12 12:21:50,194 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:21:50" (1/1) ... [2022-07-12 12:21:50,213 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 12:21:50,404 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 12:21:51,208 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] [2022-07-12 12:21:52,737 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:21:52,785 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 12:21:52,923 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] [2022-07-12 12:21:53,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:21:53,284 INFO L208 MainTranslator]: Completed translation [2022-07-12 12:21:53,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:21:53 WrapperNode [2022-07-12 12:21:53,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 12:21:53,285 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 12:21:53,286 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 12:21:53,286 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 12:21:53,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:21:53" (1/1) ... [2022-07-12 12:21:53,421 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:21:53" (1/1) ... [2022-07-12 12:21:53,613 INFO L137 Inliner]: procedures = 220, calls = 1909, calls flagged for inlining = 76, calls inlined = 76, statements flattened = 3530 [2022-07-12 12:21:53,614 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 12:21:53,615 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 12:21:53,615 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 12:21:53,616 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 12:21:53,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:21:53" (1/1) ... [2022-07-12 12:21:53,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:21:53" (1/1) ... [2022-07-12 12:21:53,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:21:53" (1/1) ... [2022-07-12 12:21:53,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:21:53" (1/1) ... [2022-07-12 12:21:53,829 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:21:53" (1/1) ... [2022-07-12 12:21:53,857 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:21:53" (1/1) ... [2022-07-12 12:21:53,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:21:53" (1/1) ... [2022-07-12 12:21:53,930 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 12:21:53,944 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 12:21:53,944 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 12:21:53,944 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 12:21:53,948 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:21:53" (1/1) ... [2022-07-12 12:21:53,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:21:53,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:21:54,024 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) [2022-07-12 12:21:54,084 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 [2022-07-12 12:21:54,130 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ctrl_complete [2022-07-12 12:21:54,130 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ctrl_complete [2022-07-12 12:21:54,130 INFO L130 BoogieDeclarations]: Found specification of procedure dout_reset [2022-07-12 12:21:54,130 INFO L138 BoogieDeclarations]: Found implementation of procedure dout_reset [2022-07-12 12:21:54,130 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_release_isocpipes [2022-07-12 12:21:54,131 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_release_isocpipes [2022-07-12 12:21:54,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 12:21:54,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 12:21:54,131 INFO L130 BoogieDeclarations]: Found specification of procedure __cpu_to_le16p [2022-07-12 12:21:54,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __cpu_to_le16p [2022-07-12 12:21:54,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 12:21:54,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 12:21:54,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-07-12 12:21:54,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-07-12 12:21:54,132 INFO L130 BoogieDeclarations]: Found specification of procedure usb_altnum_to_altsetting [2022-07-12 12:21:54,132 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_altnum_to_altsetting [2022-07-12 12:21:54,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 12:21:54,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 12:21:54,132 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_st5481 [2022-07-12 12:21:54,132 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_st5481 [2022-07-12 12:21:54,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-07-12 12:21:54,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-07-12 12:21:54,132 INFO L130 BoogieDeclarations]: Found specification of procedure usb_next_ctrl_msg [2022-07-12 12:21:54,132 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_next_ctrl_msg [2022-07-12 12:21:54,133 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_release_usb [2022-07-12 12:21:54,133 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_release_usb [2022-07-12 12:21:54,133 INFO L130 BoogieDeclarations]: Found specification of procedure usb_b_out [2022-07-12 12:21:54,133 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_b_out [2022-07-12 12:21:54,133 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_usb_device_ctrl_msg [2022-07-12 12:21:54,133 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_usb_device_ctrl_msg [2022-07-12 12:21:54,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 12:21:54,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 12:21:54,133 INFO L130 BoogieDeclarations]: Found specification of procedure FsmEvent [2022-07-12 12:21:54,147 INFO L138 BoogieDeclarations]: Found implementation of procedure FsmEvent [2022-07-12 12:21:54,147 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 12:21:54,148 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 12:21:54,148 INFO L130 BoogieDeclarations]: Found specification of procedure led_blink [2022-07-12 12:21:54,148 INFO L138 BoogieDeclarations]: Found implementation of procedure led_blink [2022-07-12 12:21:54,148 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_in_mode [2022-07-12 12:21:54,149 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_in_mode [2022-07-12 12:21:54,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-07-12 12:21:54,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-07-12 12:21:54,149 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_start_rcv [2022-07-12 12:21:54,149 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_start_rcv [2022-07-12 12:21:54,149 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-12 12:21:54,150 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-12 12:21:54,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_23 [2022-07-12 12:21:54,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_23 [2022-07-12 12:21:54,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_24 [2022-07-12 12:21:54,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_24 [2022-07-12 12:21:54,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_2 [2022-07-12 12:21:54,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_2 [2022-07-12 12:21:54,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_29 [2022-07-12 12:21:54,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_29 [2022-07-12 12:21:54,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_25 [2022-07-12 12:21:54,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_25 [2022-07-12 12:21:54,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 12:21:54,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_27 [2022-07-12 12:21:54,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_27 [2022-07-12 12:21:54,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_28 [2022-07-12 12:21:54,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_28 [2022-07-12 12:21:54,153 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2022-07-12 12:21:54,153 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2022-07-12 12:21:54,153 INFO L130 BoogieDeclarations]: Found specification of procedure ph_connect [2022-07-12 12:21:54,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ph_connect [2022-07-12 12:21:54,154 INFO L130 BoogieDeclarations]: Found specification of procedure st5481B_mode [2022-07-12 12:21:54,155 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481B_mode [2022-07-12 12:21:54,155 INFO L130 BoogieDeclarations]: Found specification of procedure B_L1L2 [2022-07-12 12:21:54,155 INFO L138 BoogieDeclarations]: Found implementation of procedure B_L1L2 [2022-07-12 12:21:54,155 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~VOID [2022-07-12 12:21:54,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~VOID [2022-07-12 12:21:54,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_10 [2022-07-12 12:21:54,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_10 [2022-07-12 12:21:54,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 12:21:54,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_11 [2022-07-12 12:21:54,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_11 [2022-07-12 12:21:54,156 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2022-07-12 12:21:54,157 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2022-07-12 12:21:54,157 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_setup_isocpipes [2022-07-12 12:21:54,157 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_setup_isocpipes [2022-07-12 12:21:54,157 INFO L130 BoogieDeclarations]: Found specification of procedure isdnhdlc_out_init [2022-07-12 12:21:54,157 INFO L138 BoogieDeclarations]: Found implementation of procedure isdnhdlc_out_init [2022-07-12 12:21:54,157 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-12 12:21:54,158 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-12 12:21:54,158 INFO L130 BoogieDeclarations]: Found specification of procedure ph_disconnect [2022-07-12 12:21:54,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ph_disconnect [2022-07-12 12:21:54,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 12:21:54,158 INFO L130 BoogieDeclarations]: Found specification of procedure l1_go_f6 [2022-07-12 12:21:54,159 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_go_f6 [2022-07-12 12:21:54,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 12:21:54,159 INFO L130 BoogieDeclarations]: Found specification of procedure l1_go_f7 [2022-07-12 12:21:54,159 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_go_f7 [2022-07-12 12:21:54,159 INFO L130 BoogieDeclarations]: Found specification of procedure l1_go_f8 [2022-07-12 12:21:54,159 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_go_f8 [2022-07-12 12:21:54,160 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_b_l2l1 [2022-07-12 12:21:54,160 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_b_l2l1 [2022-07-12 12:21:54,160 INFO L130 BoogieDeclarations]: Found specification of procedure l1_go_f3 [2022-07-12 12:21:54,160 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_go_f3 [2022-07-12 12:21:54,160 INFO L130 BoogieDeclarations]: Found specification of procedure dout_short_fifo [2022-07-12 12:21:54,161 INFO L138 BoogieDeclarations]: Found implementation of procedure dout_short_fifo [2022-07-12 12:21:54,161 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_setup_b [2022-07-12 12:21:54,161 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_setup_b [2022-07-12 12:21:54,161 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-12 12:21:54,161 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-12 12:21:54,162 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-12 12:21:54,162 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-12 12:21:54,162 INFO L130 BoogieDeclarations]: Found specification of procedure usb_in_complete [2022-07-12 12:21:54,162 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_in_complete [2022-07-12 12:21:54,162 INFO L130 BoogieDeclarations]: Found specification of procedure usb_d_out_complete [2022-07-12 12:21:54,162 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_d_out_complete [2022-07-12 12:21:54,162 INFO L130 BoogieDeclarations]: Found specification of procedure st5481B_start_xfer [2022-07-12 12:21:54,162 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481B_start_xfer [2022-07-12 12:21:54,163 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_usb_pipe_reset [2022-07-12 12:21:54,163 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_usb_pipe_reset [2022-07-12 12:21:54,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-12 12:21:54,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-12 12:21:54,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-12 12:21:54,164 INFO L130 BoogieDeclarations]: Found specification of procedure dout_check_busy [2022-07-12 12:21:54,164 INFO L138 BoogieDeclarations]: Found implementation of procedure dout_check_busy [2022-07-12 12:21:54,166 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_release_b_out [2022-07-12 12:21:54,166 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_release_b_out [2022-07-12 12:21:54,167 INFO L130 BoogieDeclarations]: Found specification of procedure FsmFree [2022-07-12 12:21:54,167 INFO L138 BoogieDeclarations]: Found implementation of procedure FsmFree [2022-07-12 12:21:54,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-12 12:21:54,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 12:21:54,169 INFO L130 BoogieDeclarations]: Found specification of procedure isdnhdlc_encode [2022-07-12 12:21:54,169 INFO L138 BoogieDeclarations]: Found implementation of procedure isdnhdlc_encode [2022-07-12 12:21:54,169 INFO L130 BoogieDeclarations]: Found specification of procedure usb_d_out [2022-07-12 12:21:54,173 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_d_out [2022-07-12 12:21:54,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 12:21:54,173 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 12:21:54,174 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-12 12:21:54,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-12 12:21:54,174 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-12 12:21:54,174 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-12 12:21:54,174 INFO L130 BoogieDeclarations]: Found specification of procedure dout_long_den [2022-07-12 12:21:54,174 INFO L138 BoogieDeclarations]: Found implementation of procedure dout_long_den [2022-07-12 12:21:54,174 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-07-12 12:21:54,174 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-07-12 12:21:54,175 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 12:21:54,175 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 12:21:54,175 INFO L130 BoogieDeclarations]: Found specification of procedure dout_stop [2022-07-12 12:21:54,175 INFO L138 BoogieDeclarations]: Found implementation of procedure dout_stop [2022-07-12 12:21:54,175 INFO L130 BoogieDeclarations]: Found specification of procedure dout_underrun [2022-07-12 12:21:54,175 INFO L138 BoogieDeclarations]: Found implementation of procedure dout_underrun [2022-07-12 12:21:54,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 12:21:54,175 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-07-12 12:21:54,175 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-07-12 12:21:54,176 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_release_in [2022-07-12 12:21:54,176 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_release_in [2022-07-12 12:21:54,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 12:21:54,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 12:21:54,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_31 [2022-07-12 12:21:54,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_31 [2022-07-12 12:21:54,176 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_d_exit [2022-07-12 12:21:54,176 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_d_exit [2022-07-12 12:21:54,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 12:21:54,177 INFO L130 BoogieDeclarations]: Found specification of procedure dump_iso_packet___0 [2022-07-12 12:21:54,177 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_iso_packet___0 [2022-07-12 12:21:54,177 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ctrl_msg [2022-07-12 12:21:54,177 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ctrl_msg [2022-07-12 12:21:54,177 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-12 12:21:54,177 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-12 12:21:54,177 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-12 12:21:54,178 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-12 12:21:54,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 12:21:54,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-12 12:21:54,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-12 12:21:54,178 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-12 12:21:54,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-12 12:21:54,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 12:21:54,186 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_release_b [2022-07-12 12:21:54,186 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_release_b [2022-07-12 12:21:54,186 INFO L130 BoogieDeclarations]: Found specification of procedure dump_packet [2022-07-12 12:21:54,186 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_packet [2022-07-12 12:21:54,186 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_release_d [2022-07-12 12:21:54,187 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_release_d [2022-07-12 12:21:54,187 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 12:21:54,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 12:21:54,187 INFO L130 BoogieDeclarations]: Found specification of procedure l1_activate [2022-07-12 12:21:54,187 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_activate [2022-07-12 12:21:54,187 INFO L130 BoogieDeclarations]: Found specification of procedure FsmNew [2022-07-12 12:21:54,187 INFO L138 BoogieDeclarations]: Found implementation of procedure FsmNew [2022-07-12 12:21:54,187 INFO L130 BoogieDeclarations]: Found specification of procedure l1_timer3 [2022-07-12 12:21:54,188 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_timer3 [2022-07-12 12:21:54,188 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_stop [2022-07-12 12:21:54,188 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_stop [2022-07-12 12:21:54,188 INFO L130 BoogieDeclarations]: Found specification of procedure dout_long_enable_fifo [2022-07-12 12:21:54,188 INFO L138 BoogieDeclarations]: Found implementation of procedure dout_long_enable_fifo [2022-07-12 12:21:54,188 INFO L130 BoogieDeclarations]: Found specification of procedure usb_b_out_complete [2022-07-12 12:21:54,188 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_b_out_complete [2022-07-12 12:21:54,188 INFO L130 BoogieDeclarations]: Found specification of procedure usb_int_complete [2022-07-12 12:21:54,190 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_int_complete [2022-07-12 12:21:54,190 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_setup_in [2022-07-12 12:21:54,190 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_setup_in [2022-07-12 12:21:54,190 INFO L130 BoogieDeclarations]: Found specification of procedure D_L1L2 [2022-07-12 12:21:54,190 INFO L138 BoogieDeclarations]: Found implementation of procedure D_L1L2 [2022-07-12 12:21:54,190 INFO L130 BoogieDeclarations]: Found specification of procedure dout_complete [2022-07-12 12:21:54,190 INFO L138 BoogieDeclarations]: Found implementation of procedure dout_complete [2022-07-12 12:21:54,190 INFO L130 BoogieDeclarations]: Found specification of procedure FsmChangeState [2022-07-12 12:21:54,191 INFO L138 BoogieDeclarations]: Found implementation of procedure FsmChangeState [2022-07-12 12:21:54,191 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_ph_command [2022-07-12 12:21:54,191 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_ph_command [2022-07-12 12:21:54,191 INFO L130 BoogieDeclarations]: Found specification of procedure dout_start_xmit [2022-07-12 12:21:54,191 INFO L138 BoogieDeclarations]: Found implementation of procedure dout_start_xmit [2022-07-12 12:21:54,191 INFO L130 BoogieDeclarations]: Found specification of procedure st5481_release_d_out [2022-07-12 12:21:54,191 INFO L138 BoogieDeclarations]: Found implementation of procedure st5481_release_d_out [2022-07-12 12:21:54,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-07-12 12:21:54,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-07-12 12:21:54,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 12:21:54,192 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2022-07-12 12:21:54,192 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2022-07-12 12:21:54,192 INFO L130 BoogieDeclarations]: Found specification of procedure get_buf_nr [2022-07-12 12:21:54,192 INFO L138 BoogieDeclarations]: Found implementation of procedure get_buf_nr [2022-07-12 12:21:54,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 12:21:54,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 12:21:55,063 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 12:21:55,068 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 12:21:55,247 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 12:22:00,444 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-07-12 12:22:06,631 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 12:22:06,667 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 12:22:06,668 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 12:22:06,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:22:06 BoogieIcfgContainer [2022-07-12 12:22:06,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 12:22:06,677 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 12:22:06,677 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 12:22:06,680 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 12:22:06,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 12:21:50" (1/3) ... [2022-07-12 12:22:06,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39be3bd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:22:06, skipping insertion in model container [2022-07-12 12:22:06,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:21:53" (2/3) ... [2022-07-12 12:22:06,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39be3bd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:22:06, skipping insertion in model container [2022-07-12 12:22:06,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:22:06" (3/3) ... [2022-07-12 12:22:06,684 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--hisax--hisax_st5481.ko-entry_point.cil.out.i [2022-07-12 12:22:06,698 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 12:22:06,698 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 12:22:06,838 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 12:22:06,859 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@6e50a105, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@26d9778b [2022-07-12 12:22:06,860 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 12:22:06,873 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) [2022-07-12 12:22:06,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-12 12:22:06,890 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:22:06,895 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] [2022-07-12 12:22:06,896 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:22:06,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:22:06,913 INFO L85 PathProgramCache]: Analyzing trace with hash 2055883923, now seen corresponding path program 1 times [2022-07-12 12:22:06,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:22:06,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398596397] [2022-07-12 12:22:06,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:22:06,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:22:07,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:22:07,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:22:07,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:22:07,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 12:22:07,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:22:07,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 12:22:08,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:22:08,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 12:22:08,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:22:08,028 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-12 12:22:08,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:22:08,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398596397] [2022-07-12 12:22:08,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398596397] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:22:08,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:22:08,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:22:08,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320146721] [2022-07-12 12:22:08,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:22:08,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 12:22:08,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:22:08,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 12:22:08,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 12:22:08,104 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) [2022-07-12 12:22:15,769 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:22:16,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:22:16,944 INFO L93 Difference]: Finished difference Result 4140 states and 6181 transitions. [2022-07-12 12:22:16,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:22:16,948 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 [2022-07-12 12:22:16,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:22:17,016 INFO L225 Difference]: With dead ends: 4140 [2022-07-12 12:22:17,016 INFO L226 Difference]: Without dead ends: 2833 [2022-07-12 12:22:17,050 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 [2022-07-12 12:22:17,057 INFO L413 NwaCegarLoop]: 1870 mSDtfsCounter, 2701 mSDsluCounter, 2065 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 990 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2858 SdHoareTripleChecker+Valid, 3935 SdHoareTripleChecker+Invalid, 2368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 990 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-07-12 12:22:17,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2858 Valid, 3935 Invalid, 2368 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [990 Valid, 1377 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2022-07-12 12:22:17,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2833 states. [2022-07-12 12:22:17,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2833 to 2495. [2022-07-12 12:22:17,493 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) [2022-07-12 12:22:17,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2495 states to 2495 states and 3472 transitions. [2022-07-12 12:22:17,542 INFO L78 Accepts]: Start accepts. Automaton has 2495 states and 3472 transitions. Word has length 33 [2022-07-12 12:22:17,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:22:17,543 INFO L495 AbstractCegarLoop]: Abstraction has 2495 states and 3472 transitions. [2022-07-12 12:22:17,543 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) [2022-07-12 12:22:17,544 INFO L276 IsEmpty]: Start isEmpty. Operand 2495 states and 3472 transitions. [2022-07-12 12:22:17,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-12 12:22:17,550 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:22:17,551 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] [2022-07-12 12:22:17,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 12:22:17,551 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:22:17,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:22:17,552 INFO L85 PathProgramCache]: Analyzing trace with hash 408730137, now seen corresponding path program 1 times [2022-07-12 12:22:17,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:22:17,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855633590] [2022-07-12 12:22:17,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:22:17,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:22:17,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:22:17,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:22:17,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:22:17,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 12:22:18,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:22:18,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 12:22:18,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:22:18,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855633590] [2022-07-12 12:22:18,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855633590] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:22:18,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:22:18,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:22:18,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927108021] [2022-07-12 12:22:18,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:22:18,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 12:22:18,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:22:18,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 12:22:18,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 12:22:18,026 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) [2022-07-12 12:22:23,930 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 [] [2022-07-12 12:22:24,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:22:24,319 INFO L93 Difference]: Finished difference Result 2859 states and 4046 transitions. [2022-07-12 12:22:24,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:22:24,320 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 [2022-07-12 12:22:24,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:22:24,338 INFO L225 Difference]: With dead ends: 2859 [2022-07-12 12:22:24,338 INFO L226 Difference]: Without dead ends: 2846 [2022-07-12 12:22:24,341 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 [2022-07-12 12:22:24,344 INFO L413 NwaCegarLoop]: 1652 mSDtfsCounter, 2171 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 644 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2278 SdHoareTripleChecker+Valid, 2284 SdHoareTripleChecker+Invalid, 1293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 644 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-07-12 12:22:24,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2278 Valid, 2284 Invalid, 1293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [644 Valid, 648 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-07-12 12:22:24,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2846 states. [2022-07-12 12:22:24,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2846 to 2495. [2022-07-12 12:22:24,528 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) [2022-07-12 12:22:24,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2495 states to 2495 states and 3471 transitions. [2022-07-12 12:22:24,542 INFO L78 Accepts]: Start accepts. Automaton has 2495 states and 3471 transitions. Word has length 33 [2022-07-12 12:22:24,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:22:24,543 INFO L495 AbstractCegarLoop]: Abstraction has 2495 states and 3471 transitions. [2022-07-12 12:22:24,544 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) [2022-07-12 12:22:24,544 INFO L276 IsEmpty]: Start isEmpty. Operand 2495 states and 3471 transitions. [2022-07-12 12:22:24,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-12 12:22:24,546 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:22:24,546 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] [2022-07-12 12:22:24,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 12:22:24,546 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:22:24,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:22:24,547 INFO L85 PathProgramCache]: Analyzing trace with hash 465988439, now seen corresponding path program 1 times [2022-07-12 12:22:24,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:22:24,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759263087] [2022-07-12 12:22:24,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:22:24,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:22:24,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:22:24,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:22:24,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:22:24,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 12:22:24,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:22:24,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 12:22:24,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:22:24,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759263087] [2022-07-12 12:22:24,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759263087] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:22:24,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:22:24,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:22:24,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808440310] [2022-07-12 12:22:24,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:22:24,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 12:22:24,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:22:24,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 12:22:24,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 12:22:24,826 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) [2022-07-12 12:22:30,427 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 [] [2022-07-12 12:22:33,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:22:33,245 INFO L93 Difference]: Finished difference Result 8134 states and 12380 transitions. [2022-07-12 12:22:33,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:22:33,245 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 [2022-07-12 12:22:33,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:22:33,337 INFO L225 Difference]: With dead ends: 8134 [2022-07-12 12:22:33,338 INFO L226 Difference]: Without dead ends: 5651 [2022-07-12 12:22:33,356 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 [2022-07-12 12:22:33,357 INFO L413 NwaCegarLoop]: 2054 mSDtfsCounter, 2833 mSDsluCounter, 2121 mSDsCounter, 0 mSdLazyCounter, 1431 mSolverCounterSat, 1022 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2956 SdHoareTripleChecker+Valid, 4175 SdHoareTripleChecker+Invalid, 2454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1022 IncrementalHoareTripleChecker+Valid, 1431 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-07-12 12:22:33,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2956 Valid, 4175 Invalid, 2454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1022 Valid, 1431 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2022-07-12 12:22:33,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5651 states. [2022-07-12 12:22:33,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5651 to 5289. [2022-07-12 12:22:33,853 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) [2022-07-12 12:22:33,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5289 states to 5289 states and 7746 transitions. [2022-07-12 12:22:33,915 INFO L78 Accepts]: Start accepts. Automaton has 5289 states and 7746 transitions. Word has length 33 [2022-07-12 12:22:33,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:22:33,931 INFO L495 AbstractCegarLoop]: Abstraction has 5289 states and 7746 transitions. [2022-07-12 12:22:33,932 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) [2022-07-12 12:22:33,932 INFO L276 IsEmpty]: Start isEmpty. Operand 5289 states and 7746 transitions. [2022-07-12 12:22:33,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-12 12:22:33,936 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:22:33,936 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] [2022-07-12 12:22:33,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 12:22:33,937 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:22:33,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:22:33,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1560195809, now seen corresponding path program 1 times [2022-07-12 12:22:33,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:22:33,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054262562] [2022-07-12 12:22:33,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:22:33,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:22:34,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:22:34,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:22:34,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:22:34,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 12:22:34,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:22:34,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 12:22:34,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:22:34,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054262562] [2022-07-12 12:22:34,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054262562] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:22:34,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:22:34,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:22:34,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624977465] [2022-07-12 12:22:34,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:22:34,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 12:22:34,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:22:34,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 12:22:34,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 12:22:34,333 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) [2022-07-12 12:22:39,607 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 [] [2022-07-12 12:22:40,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:22:40,006 INFO L93 Difference]: Finished difference Result 5643 states and 8325 transitions. [2022-07-12 12:22:40,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 12:22:40,007 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 [2022-07-12 12:22:40,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:22:40,044 INFO L225 Difference]: With dead ends: 5643 [2022-07-12 12:22:40,044 INFO L226 Difference]: Without dead ends: 5640 [2022-07-12 12:22:40,050 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 [2022-07-12 12:22:40,051 INFO L413 NwaCegarLoop]: 1630 mSDtfsCounter, 2151 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 642 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2260 SdHoareTripleChecker+Valid, 2232 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 642 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-07-12 12:22:40,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2260 Valid, 2232 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [642 Valid, 643 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-07-12 12:22:40,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5640 states. [2022-07-12 12:22:40,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5640 to 5288. [2022-07-12 12:22:40,290 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) [2022-07-12 12:22:40,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5288 states to 5288 states and 7744 transitions. [2022-07-12 12:22:40,318 INFO L78 Accepts]: Start accepts. Automaton has 5288 states and 7744 transitions. Word has length 34 [2022-07-12 12:22:40,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:22:40,318 INFO L495 AbstractCegarLoop]: Abstraction has 5288 states and 7744 transitions. [2022-07-12 12:22:40,319 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) [2022-07-12 12:22:40,319 INFO L276 IsEmpty]: Start isEmpty. Operand 5288 states and 7744 transitions. [2022-07-12 12:22:40,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-12 12:22:40,320 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:22:40,320 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] [2022-07-12 12:22:40,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 12:22:40,321 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:22:40,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:22:40,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1120890778, now seen corresponding path program 1 times [2022-07-12 12:22:40,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:22:40,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488638115] [2022-07-12 12:22:40,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:22:40,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:22:40,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:22:40,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:22:40,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:22:40,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 12:22:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:22:40,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 12:22:40,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:22:40,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488638115] [2022-07-12 12:22:40,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488638115] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:22:40,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:22:40,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:22:40,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238121834] [2022-07-12 12:22:40,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:22:40,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 12:22:40,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:22:40,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 12:22:40,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 12:22:40,554 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) [2022-07-12 12:22:44,752 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 [] [2022-07-12 12:22:45,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:22:45,115 INFO L93 Difference]: Finished difference Result 5642 states and 8323 transitions. [2022-07-12 12:22:45,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 12:22:45,116 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 [2022-07-12 12:22:45,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:22:45,153 INFO L225 Difference]: With dead ends: 5642 [2022-07-12 12:22:45,153 INFO L226 Difference]: Without dead ends: 5639 [2022-07-12 12:22:45,158 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 [2022-07-12 12:22:45,159 INFO L413 NwaCegarLoop]: 1627 mSDtfsCounter, 2149 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 643 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2257 SdHoareTripleChecker+Valid, 2229 SdHoareTripleChecker+Invalid, 1285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 643 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-07-12 12:22:45,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2257 Valid, 2229 Invalid, 1285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [643 Valid, 641 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-07-12 12:22:45,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5639 states. [2022-07-12 12:22:45,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5639 to 5287. [2022-07-12 12:22:45,385 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) [2022-07-12 12:22:45,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5287 states to 5287 states and 7742 transitions. [2022-07-12 12:22:45,465 INFO L78 Accepts]: Start accepts. Automaton has 5287 states and 7742 transitions. Word has length 35 [2022-07-12 12:22:45,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:22:45,465 INFO L495 AbstractCegarLoop]: Abstraction has 5287 states and 7742 transitions. [2022-07-12 12:22:45,466 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) [2022-07-12 12:22:45,466 INFO L276 IsEmpty]: Start isEmpty. Operand 5287 states and 7742 transitions. [2022-07-12 12:22:45,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-12 12:22:45,466 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:22:45,467 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] [2022-07-12 12:22:45,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 12:22:45,467 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:22:45,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:22:45,468 INFO L85 PathProgramCache]: Analyzing trace with hash 387341572, now seen corresponding path program 1 times [2022-07-12 12:22:45,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:22:45,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713529398] [2022-07-12 12:22:45,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:22:45,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:22:45,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:22:45,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:22:45,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:22:45,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 12:22:45,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:22:45,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 12:22:45,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:22:45,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713529398] [2022-07-12 12:22:45,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713529398] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:22:45,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:22:45,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:22:45,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634183351] [2022-07-12 12:22:45,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:22:45,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 12:22:45,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:22:45,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 12:22:45,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 12:22:45,668 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) [2022-07-12 12:22:49,699 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 [] [2022-07-12 12:22:50,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:22:50,068 INFO L93 Difference]: Finished difference Result 5641 states and 8321 transitions. [2022-07-12 12:22:50,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 12:22:50,069 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 [2022-07-12 12:22:50,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:22:50,106 INFO L225 Difference]: With dead ends: 5641 [2022-07-12 12:22:50,106 INFO L226 Difference]: Without dead ends: 5638 [2022-07-12 12:22:50,110 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 [2022-07-12 12:22:50,113 INFO L413 NwaCegarLoop]: 1623 mSDtfsCounter, 2145 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 636 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2258 SdHoareTripleChecker+Valid, 2219 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 636 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-07-12 12:22:50,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2258 Valid, 2219 Invalid, 1282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [636 Valid, 645 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-07-12 12:22:50,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5638 states. [2022-07-12 12:22:50,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5638 to 5286. [2022-07-12 12:22:50,382 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) [2022-07-12 12:22:50,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5286 states to 5286 states and 7740 transitions. [2022-07-12 12:22:50,404 INFO L78 Accepts]: Start accepts. Automaton has 5286 states and 7740 transitions. Word has length 36 [2022-07-12 12:22:50,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:22:50,405 INFO L495 AbstractCegarLoop]: Abstraction has 5286 states and 7740 transitions. [2022-07-12 12:22:50,405 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) [2022-07-12 12:22:50,405 INFO L276 IsEmpty]: Start isEmpty. Operand 5286 states and 7740 transitions. [2022-07-12 12:22:50,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-12 12:22:50,406 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:22:50,406 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] [2022-07-12 12:22:50,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 12:22:50,406 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:22:50,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:22:50,407 INFO L85 PathProgramCache]: Analyzing trace with hash -877842467, now seen corresponding path program 1 times [2022-07-12 12:22:50,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:22:50,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371559320] [2022-07-12 12:22:50,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:22:50,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:22:50,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:22:50,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:22:50,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:22:50,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 12:22:50,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:22:50,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 12:22:50,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:22:50,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371559320] [2022-07-12 12:22:50,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371559320] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:22:50,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:22:50,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:22:50,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927382697] [2022-07-12 12:22:50,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:22:50,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 12:22:50,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:22:50,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 12:22:50,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 12:22:50,596 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) [2022-07-12 12:22:54,847 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 [] [2022-07-12 12:22:55,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:22:55,158 INFO L93 Difference]: Finished difference Result 5640 states and 8319 transitions. [2022-07-12 12:22:55,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 12:22:55,158 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 [2022-07-12 12:22:55,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:22:55,183 INFO L225 Difference]: With dead ends: 5640 [2022-07-12 12:22:55,183 INFO L226 Difference]: Without dead ends: 5620 [2022-07-12 12:22:55,186 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 [2022-07-12 12:22:55,187 INFO L413 NwaCegarLoop]: 1619 mSDtfsCounter, 2143 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 641 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2256 SdHoareTripleChecker+Valid, 2215 SdHoareTripleChecker+Invalid, 1281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 641 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-07-12 12:22:55,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2256 Valid, 2215 Invalid, 1281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [641 Valid, 639 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-07-12 12:22:55,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5620 states. [2022-07-12 12:22:55,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5620 to 5268. [2022-07-12 12:22:55,411 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) [2022-07-12 12:22:55,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5268 states to 5268 states and 7718 transitions. [2022-07-12 12:22:55,442 INFO L78 Accepts]: Start accepts. Automaton has 5268 states and 7718 transitions. Word has length 37 [2022-07-12 12:22:55,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:22:55,444 INFO L495 AbstractCegarLoop]: Abstraction has 5268 states and 7718 transitions. [2022-07-12 12:22:55,445 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) [2022-07-12 12:22:55,445 INFO L276 IsEmpty]: Start isEmpty. Operand 5268 states and 7718 transitions. [2022-07-12 12:22:55,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-12 12:22:55,459 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:22:55,460 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] [2022-07-12 12:22:55,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 12:22:55,460 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:22:55,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:22:55,461 INFO L85 PathProgramCache]: Analyzing trace with hash -34419034, now seen corresponding path program 1 times [2022-07-12 12:22:55,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:22:55,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914104031] [2022-07-12 12:22:55,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:22:55,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:22:55,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:22:55,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:22:55,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:22:55,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:22:55,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:22:55,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 12:22:55,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:22:55,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:22:55,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:22:55,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-12 12:22:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:22:55,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:22:55,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:22:55,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 12:22:55,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:22:55,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:22:55,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:22:55,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 12:22:55,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:22:55,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 12:22:55,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:22:55,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 12:22:55,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:22:55,775 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-12 12:22:55,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:22:55,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914104031] [2022-07-12 12:22:55,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914104031] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:22:55,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:22:55,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 12:22:55,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610574163] [2022-07-12 12:22:55,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:22:55,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 12:22:55,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:22:55,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 12:22:55,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-12 12:22:55,779 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) [2022-07-12 12:23:01,577 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:23:03,603 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:23:04,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:23:04,243 INFO L93 Difference]: Finished difference Result 11596 states and 17194 transitions. [2022-07-12 12:23:04,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 12:23:04,243 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 [2022-07-12 12:23:04,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:23:04,268 INFO L225 Difference]: With dead ends: 11596 [2022-07-12 12:23:04,268 INFO L226 Difference]: Without dead ends: 6340 [2022-07-12 12:23:04,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-07-12 12:23:04,290 INFO L413 NwaCegarLoop]: 1717 mSDtfsCounter, 1417 mSDsluCounter, 3505 mSDsCounter, 0 mSdLazyCounter, 1752 mSolverCounterSat, 902 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1432 SdHoareTripleChecker+Valid, 5222 SdHoareTripleChecker+Invalid, 2656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 902 IncrementalHoareTripleChecker+Valid, 1752 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-07-12 12:23:04,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1432 Valid, 5222 Invalid, 2656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [902 Valid, 1752 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2022-07-12 12:23:04,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6340 states. [2022-07-12 12:23:04,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6340 to 5572. [2022-07-12 12:23:04,544 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) [2022-07-12 12:23:04,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5572 states to 5572 states and 8191 transitions. [2022-07-12 12:23:04,568 INFO L78 Accepts]: Start accepts. Automaton has 5572 states and 8191 transitions. Word has length 113 [2022-07-12 12:23:04,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:23:04,569 INFO L495 AbstractCegarLoop]: Abstraction has 5572 states and 8191 transitions. [2022-07-12 12:23:04,569 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) [2022-07-12 12:23:04,569 INFO L276 IsEmpty]: Start isEmpty. Operand 5572 states and 8191 transitions. [2022-07-12 12:23:04,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-12 12:23:04,582 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:23:04,582 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] [2022-07-12 12:23:04,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 12:23:04,582 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:23:04,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:23:04,583 INFO L85 PathProgramCache]: Analyzing trace with hash 189635978, now seen corresponding path program 1 times [2022-07-12 12:23:04,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:23:04,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721625361] [2022-07-12 12:23:04,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:23:04,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:23:04,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:04,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:23:04,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:04,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 12:23:04,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:04,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:23:04,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:04,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-12 12:23:04,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:04,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-12 12:23:04,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:04,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:23:04,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:04,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 12:23:04,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:04,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:23:04,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:04,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 12:23:04,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:04,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:23:04,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:04,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 12:23:04,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:04,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-12 12:23:04,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:04,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-12 12:23:04,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:04,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 12:23:04,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:04,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 12:23:04,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:04,961 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-07-12 12:23:04,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:23:04,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721625361] [2022-07-12 12:23:04,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721625361] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:23:04,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:23:04,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 12:23:04,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029805681] [2022-07-12 12:23:04,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:23:04,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 12:23:04,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:23:04,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 12:23:04,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-12 12:23:04,965 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) [2022-07-12 12:23:10,051 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 [] [2022-07-12 12:23:10,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:23:10,536 INFO L93 Difference]: Finished difference Result 11904 states and 17677 transitions. [2022-07-12 12:23:10,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 12:23:10,537 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 [2022-07-12 12:23:10,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:23:10,561 INFO L225 Difference]: With dead ends: 11904 [2022-07-12 12:23:10,562 INFO L226 Difference]: Without dead ends: 6348 [2022-07-12 12:23:10,582 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 [2022-07-12 12:23:10,583 INFO L413 NwaCegarLoop]: 1688 mSDtfsCounter, 2002 mSDsluCounter, 3014 mSDsCounter, 0 mSdLazyCounter, 1329 mSolverCounterSat, 1339 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2011 SdHoareTripleChecker+Valid, 4702 SdHoareTripleChecker+Invalid, 2669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1339 IncrementalHoareTripleChecker+Valid, 1329 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-07-12 12:23:10,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2011 Valid, 4702 Invalid, 2669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1339 Valid, 1329 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-07-12 12:23:10,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6348 states. [2022-07-12 12:23:10,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6348 to 5580. [2022-07-12 12:23:10,827 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) [2022-07-12 12:23:10,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5580 states to 5580 states and 8199 transitions. [2022-07-12 12:23:10,851 INFO L78 Accepts]: Start accepts. Automaton has 5580 states and 8199 transitions. Word has length 142 [2022-07-12 12:23:10,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:23:10,852 INFO L495 AbstractCegarLoop]: Abstraction has 5580 states and 8199 transitions. [2022-07-12 12:23:10,852 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) [2022-07-12 12:23:10,852 INFO L276 IsEmpty]: Start isEmpty. Operand 5580 states and 8199 transitions. [2022-07-12 12:23:10,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-07-12 12:23:10,864 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:23:10,864 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] [2022-07-12 12:23:10,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 12:23:10,865 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:23:10,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:23:10,865 INFO L85 PathProgramCache]: Analyzing trace with hash 66970766, now seen corresponding path program 1 times [2022-07-12 12:23:10,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:23:10,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412087049] [2022-07-12 12:23:10,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:23:10,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:23:10,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:11,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:23:11,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:11,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 12:23:11,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:11,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:23:11,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:11,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-12 12:23:11,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:11,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-12 12:23:11,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:11,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:23:11,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:11,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 12:23:11,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:11,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:23:11,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:11,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-12 12:23:11,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:11,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:23:11,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:11,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 12:23:11,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:11,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 12:23:11,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:11,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 12:23:11,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:11,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 12:23:11,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:11,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 12:23:11,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:11,227 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-07-12 12:23:11,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:23:11,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412087049] [2022-07-12 12:23:11,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412087049] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 12:23:11,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1404375891] [2022-07-12 12:23:11,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:23:11,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 12:23:11,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:23:11,230 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) [2022-07-12 12:23:11,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-12 12:23:12,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:12,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 3692 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 12:23:12,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:23:12,170 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 23 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-12 12:23:12,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 12:23:12,260 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-07-12 12:23:12,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1404375891] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 12:23:12,261 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-12 12:23:12,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 9 [2022-07-12 12:23:12,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385323093] [2022-07-12 12:23:12,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-12 12:23:12,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 12:23:12,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:23:12,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 12:23:12,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-07-12 12:23:12,263 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) [2022-07-12 12:23:17,536 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 [] [2022-07-12 12:23:19,554 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 [] [2022-07-12 12:23:20,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:23:20,061 INFO L93 Difference]: Finished difference Result 11920 states and 17693 transitions. [2022-07-12 12:23:20,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 12:23:20,062 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 [2022-07-12 12:23:20,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:23:20,092 INFO L225 Difference]: With dead ends: 11920 [2022-07-12 12:23:20,092 INFO L226 Difference]: Without dead ends: 6356 [2022-07-12 12:23:20,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-12 12:23:20,118 INFO L413 NwaCegarLoop]: 1692 mSDtfsCounter, 2005 mSDsluCounter, 4458 mSDsCounter, 0 mSdLazyCounter, 1783 mSolverCounterSat, 1347 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2014 SdHoareTripleChecker+Valid, 6150 SdHoareTripleChecker+Invalid, 3132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1347 IncrementalHoareTripleChecker+Valid, 1783 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-07-12 12:23:20,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2014 Valid, 6150 Invalid, 3132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1347 Valid, 1783 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-07-12 12:23:20,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6356 states. [2022-07-12 12:23:20,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6356 to 5596. [2022-07-12 12:23:20,414 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) [2022-07-12 12:23:20,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5596 states to 5596 states and 8215 transitions. [2022-07-12 12:23:20,438 INFO L78 Accepts]: Start accepts. Automaton has 5596 states and 8215 transitions. Word has length 144 [2022-07-12 12:23:20,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:23:20,439 INFO L495 AbstractCegarLoop]: Abstraction has 5596 states and 8215 transitions. [2022-07-12 12:23:20,439 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) [2022-07-12 12:23:20,440 INFO L276 IsEmpty]: Start isEmpty. Operand 5596 states and 8215 transitions. [2022-07-12 12:23:20,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-07-12 12:23:20,454 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:23:20,454 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] [2022-07-12 12:23:20,490 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-12 12:23:20,678 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 [2022-07-12 12:23:20,679 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:23:20,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:23:20,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1850180974, now seen corresponding path program 2 times [2022-07-12 12:23:20,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:23:20,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693185858] [2022-07-12 12:23:20,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:23:20,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:23:20,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:20,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:23:20,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:20,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 12:23:20,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:20,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:23:20,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:20,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-12 12:23:20,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:20,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-12 12:23:20,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:20,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:23:20,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:20,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 12:23:20,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:20,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:23:20,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:20,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-12 12:23:20,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:20,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:23:20,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:20,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 12:23:20,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:20,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-12 12:23:20,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:21,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-12 12:23:21,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:21,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 12:23:21,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:21,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 12:23:21,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:21,020 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-12 12:23:21,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:23:21,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693185858] [2022-07-12 12:23:21,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693185858] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:23:21,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:23:21,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 12:23:21,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80427336] [2022-07-12 12:23:21,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:23:21,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 12:23:21,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:23:21,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 12:23:21,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-07-12 12:23:21,023 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) [2022-07-12 12:23:29,725 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 [] [2022-07-12 12:23:31,744 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:23:34,341 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:23:35,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:23:35,371 INFO L93 Difference]: Finished difference Result 18282 states and 27193 transitions. [2022-07-12 12:23:35,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 12:23:35,375 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 [2022-07-12 12:23:35,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:23:35,437 INFO L225 Difference]: With dead ends: 18282 [2022-07-12 12:23:35,438 INFO L226 Difference]: Without dead ends: 12702 [2022-07-12 12:23:35,461 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 [2022-07-12 12:23:35,462 INFO L413 NwaCegarLoop]: 3298 mSDtfsCounter, 3043 mSDsluCounter, 9623 mSDsCounter, 0 mSdLazyCounter, 4605 mSolverCounterSat, 1473 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3166 SdHoareTripleChecker+Valid, 12921 SdHoareTripleChecker+Invalid, 6081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1473 IncrementalHoareTripleChecker+Valid, 4605 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2022-07-12 12:23:35,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3166 Valid, 12921 Invalid, 6081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1473 Valid, 4605 Invalid, 3 Unknown, 0 Unchecked, 13.6s Time] [2022-07-12 12:23:35,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12702 states. [2022-07-12 12:23:35,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12702 to 5604. [2022-07-12 12:23:35,957 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) [2022-07-12 12:23:35,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5604 states to 5604 states and 8223 transitions. [2022-07-12 12:23:35,983 INFO L78 Accepts]: Start accepts. Automaton has 5604 states and 8223 transitions. Word has length 146 [2022-07-12 12:23:35,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:23:35,983 INFO L495 AbstractCegarLoop]: Abstraction has 5604 states and 8223 transitions. [2022-07-12 12:23:35,983 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) [2022-07-12 12:23:35,983 INFO L276 IsEmpty]: Start isEmpty. Operand 5604 states and 8223 transitions. [2022-07-12 12:23:35,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-07-12 12:23:35,997 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:23:35,997 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] [2022-07-12 12:23:35,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 12:23:35,998 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:23:35,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:23:35,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1709632364, now seen corresponding path program 1 times [2022-07-12 12:23:35,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:23:35,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839472023] [2022-07-12 12:23:35,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:23:35,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:23:36,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:36,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:23:36,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:36,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 12:23:36,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:36,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:23:36,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:36,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-12 12:23:36,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:36,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-12 12:23:36,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:36,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:23:36,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:36,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 12:23:36,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:36,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:23:36,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:36,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-12 12:23:36,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:36,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:23:36,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:36,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 12:23:36,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:36,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-12 12:23:36,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:36,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-12 12:23:36,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:36,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 12:23:36,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:36,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 12:23:36,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:36,433 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-07-12 12:23:36,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:23:36,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839472023] [2022-07-12 12:23:36,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839472023] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 12:23:36,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020909799] [2022-07-12 12:23:36,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:23:36,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 12:23:36,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:23:36,436 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) [2022-07-12 12:23:36,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-12 12:23:37,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:37,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 3728 conjuncts, 43 conjunts are in the unsatisfiable core [2022-07-12 12:23:37,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:23:37,563 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-12 12:23:37,563 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:23:37,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020909799] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:23:37,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 12:23:37,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 15 [2022-07-12 12:23:37,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181836142] [2022-07-12 12:23:37,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:23:37,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 12:23:37,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:23:37,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 12:23:37,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2022-07-12 12:23:37,566 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) [2022-07-12 12:23:40,071 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 [] [2022-07-12 12:23:40,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:23:40,205 INFO L93 Difference]: Finished difference Result 11453 states and 16809 transitions. [2022-07-12 12:23:40,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 12:23:40,206 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 [2022-07-12 12:23:40,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:23:40,232 INFO L225 Difference]: With dead ends: 11453 [2022-07-12 12:23:40,232 INFO L226 Difference]: Without dead ends: 5865 [2022-07-12 12:23:40,250 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 [2022-07-12 12:23:40,251 INFO L413 NwaCegarLoop]: 1842 mSDtfsCounter, 130 mSDsluCounter, 12703 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 14545 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 [2022-07-12 12:23:40,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 14545 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 77 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-07-12 12:23:40,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5865 states. [2022-07-12 12:23:40,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5865 to 5616. [2022-07-12 12:23:40,659 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) [2022-07-12 12:23:40,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5616 states to 5616 states and 8235 transitions. [2022-07-12 12:23:40,687 INFO L78 Accepts]: Start accepts. Automaton has 5616 states and 8235 transitions. Word has length 146 [2022-07-12 12:23:40,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:23:40,687 INFO L495 AbstractCegarLoop]: Abstraction has 5616 states and 8235 transitions. [2022-07-12 12:23:40,687 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) [2022-07-12 12:23:40,687 INFO L276 IsEmpty]: Start isEmpty. Operand 5616 states and 8235 transitions. [2022-07-12 12:23:40,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-07-12 12:23:40,703 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:23:40,703 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] [2022-07-12 12:23:40,736 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-12 12:23:40,931 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 [2022-07-12 12:23:40,931 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:23:40,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:23:40,932 INFO L85 PathProgramCache]: Analyzing trace with hash -348627764, now seen corresponding path program 1 times [2022-07-12 12:23:40,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:23:40,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916425084] [2022-07-12 12:23:40,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:23:40,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:23:41,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:41,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:23:41,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:41,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 12:23:41,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:41,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:23:41,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:41,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-12 12:23:41,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:41,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-12 12:23:41,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:41,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:23:41,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:41,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:23:41,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:41,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 12:23:41,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:41,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:23:41,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:41,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 12:23:41,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:41,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:23:41,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:41,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 12:23:41,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:41,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 12:23:41,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:41,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-12 12:23:41,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:41,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 12:23:41,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:41,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 12:23:41,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:41,371 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-07-12 12:23:41,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:23:41,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916425084] [2022-07-12 12:23:41,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916425084] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 12:23:41,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257617908] [2022-07-12 12:23:41,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:23:41,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 12:23:41,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:23:41,373 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) [2022-07-12 12:23:41,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-12 12:23:42,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:42,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 3754 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-12 12:23:42,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:23:42,349 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-12 12:23:42,349 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:23:42,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1257617908] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:23:42,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 12:23:42,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-07-12 12:23:42,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410526379] [2022-07-12 12:23:42,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:23:42,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 12:23:42,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:23:42,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 12:23:42,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-07-12 12:23:42,351 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) [2022-07-12 12:23:42,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:23:42,716 INFO L93 Difference]: Finished difference Result 11769 states and 17343 transitions. [2022-07-12 12:23:42,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 12:23:42,717 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 [2022-07-12 12:23:42,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:23:42,747 INFO L225 Difference]: With dead ends: 11769 [2022-07-12 12:23:42,748 INFO L226 Difference]: Without dead ends: 6169 [2022-07-12 12:23:42,766 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 [2022-07-12 12:23:42,767 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 [2022-07-12 12:23:42,768 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] [2022-07-12 12:23:42,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6169 states. [2022-07-12 12:23:43,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6169 to 5620. [2022-07-12 12:23:43,157 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) [2022-07-12 12:23:43,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5620 states to 5620 states and 8239 transitions. [2022-07-12 12:23:43,183 INFO L78 Accepts]: Start accepts. Automaton has 5620 states and 8239 transitions. Word has length 152 [2022-07-12 12:23:43,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:23:43,184 INFO L495 AbstractCegarLoop]: Abstraction has 5620 states and 8239 transitions. [2022-07-12 12:23:43,184 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) [2022-07-12 12:23:43,184 INFO L276 IsEmpty]: Start isEmpty. Operand 5620 states and 8239 transitions. [2022-07-12 12:23:43,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-12 12:23:43,199 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:23:43,199 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] [2022-07-12 12:23:43,238 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-12 12:23:43,415 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 [2022-07-12 12:23:43,415 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:23:43,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:23:43,416 INFO L85 PathProgramCache]: Analyzing trace with hash 34508044, now seen corresponding path program 1 times [2022-07-12 12:23:43,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:23:43,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51780123] [2022-07-12 12:23:43,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:23:43,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:23:43,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:43,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:23:43,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:43,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 12:23:43,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:43,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:23:43,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:43,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-12 12:23:43,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:43,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-12 12:23:43,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:43,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:23:43,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:43,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:23:43,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:43,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 12:23:43,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:43,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:23:43,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:43,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-12 12:23:43,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:43,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:23:43,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:43,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-12 12:23:43,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:43,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:23:43,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:43,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 12:23:43,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:43,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-12 12:23:43,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:43,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 12:23:43,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:43,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 12:23:43,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:43,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 12:23:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:43,773 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-07-12 12:23:43,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:23:43,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51780123] [2022-07-12 12:23:43,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51780123] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 12:23:43,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26028434] [2022-07-12 12:23:43,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:23:43,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 12:23:43,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:23:43,777 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) [2022-07-12 12:23:43,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-12 12:23:44,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:44,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 3804 conjuncts, 19 conjunts are in the unsatisfiable core [2022-07-12 12:23:44,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:23:44,722 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-12 12:23:44,723 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:23:44,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26028434] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:23:44,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 12:23:44,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 9 [2022-07-12 12:23:44,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896527311] [2022-07-12 12:23:44,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:23:44,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:23:44,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:23:44,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:23:44,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-07-12 12:23:44,724 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) [2022-07-12 12:23:45,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:23:45,050 INFO L93 Difference]: Finished difference Result 11232 states and 16469 transitions. [2022-07-12 12:23:45,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:23:45,051 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 [2022-07-12 12:23:45,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:23:45,105 INFO L225 Difference]: With dead ends: 11232 [2022-07-12 12:23:45,106 INFO L226 Difference]: Without dead ends: 5620 [2022-07-12 12:23:45,126 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 [2022-07-12 12:23:45,127 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 [2022-07-12 12:23:45,127 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] [2022-07-12 12:23:45,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5620 states. [2022-07-12 12:23:45,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5620 to 5620. [2022-07-12 12:23:45,551 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) [2022-07-12 12:23:45,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5620 states to 5620 states and 8235 transitions. [2022-07-12 12:23:45,575 INFO L78 Accepts]: Start accepts. Automaton has 5620 states and 8235 transitions. Word has length 163 [2022-07-12 12:23:45,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:23:45,576 INFO L495 AbstractCegarLoop]: Abstraction has 5620 states and 8235 transitions. [2022-07-12 12:23:45,576 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) [2022-07-12 12:23:45,576 INFO L276 IsEmpty]: Start isEmpty. Operand 5620 states and 8235 transitions. [2022-07-12 12:23:45,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-07-12 12:23:45,593 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:23:45,593 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] [2022-07-12 12:23:45,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-12 12:23:45,807 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 [2022-07-12 12:23:45,807 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:23:45,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:23:45,808 INFO L85 PathProgramCache]: Analyzing trace with hash 794779412, now seen corresponding path program 2 times [2022-07-12 12:23:45,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:23:45,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822684004] [2022-07-12 12:23:45,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:23:45,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:23:45,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:46,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:23:46,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:46,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 12:23:46,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:46,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:23:46,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:46,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-12 12:23:46,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:46,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:23:46,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:46,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 12:23:46,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:46,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:23:46,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:46,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:23:46,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:46,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 12:23:46,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:46,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:23:46,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:46,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 12:23:46,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:46,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:23:46,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:46,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-12 12:23:46,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:46,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:23:46,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:46,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 12:23:46,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:46,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-12 12:23:46,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:46,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 12:23:46,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:46,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 12:23:46,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:46,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 12:23:46,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:46,262 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-07-12 12:23:46,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:23:46,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822684004] [2022-07-12 12:23:46,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822684004] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 12:23:46,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735178778] [2022-07-12 12:23:46,263 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 12:23:46,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 12:23:46,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:23:46,265 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) [2022-07-12 12:23:46,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-12 12:23:47,109 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-12 12:23:47,109 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 12:23:47,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 3830 conjuncts, 21 conjunts are in the unsatisfiable core [2022-07-12 12:23:47,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:23:47,557 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-07-12 12:23:47,558 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:23:47,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735178778] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:23:47,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 12:23:47,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 14 [2022-07-12 12:23:47,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703247801] [2022-07-12 12:23:47,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:23:47,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 12:23:47,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:23:47,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 12:23:47,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-07-12 12:23:47,560 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) [2022-07-12 12:23:48,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:23:48,130 INFO L93 Difference]: Finished difference Result 11224 states and 16549 transitions. [2022-07-12 12:23:48,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 12:23:48,131 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 [2022-07-12 12:23:48,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:23:48,163 INFO L225 Difference]: With dead ends: 11224 [2022-07-12 12:23:48,163 INFO L226 Difference]: Without dead ends: 5620 [2022-07-12 12:23:48,185 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 [2022-07-12 12:23:48,185 INFO L413 NwaCegarLoop]: 2181 mSDtfsCounter, 1866 mSDsluCounter, 8275 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1873 SdHoareTripleChecker+Valid, 10456 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 12:23:48,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1873 Valid, 10456 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 12:23:48,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5620 states. [2022-07-12 12:23:48,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5620 to 5620. [2022-07-12 12:23:48,621 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) [2022-07-12 12:23:48,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5620 states to 5620 states and 8231 transitions. [2022-07-12 12:23:48,647 INFO L78 Accepts]: Start accepts. Automaton has 5620 states and 8231 transitions. Word has length 169 [2022-07-12 12:23:48,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:23:48,648 INFO L495 AbstractCegarLoop]: Abstraction has 5620 states and 8231 transitions. [2022-07-12 12:23:48,649 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) [2022-07-12 12:23:48,649 INFO L276 IsEmpty]: Start isEmpty. Operand 5620 states and 8231 transitions. [2022-07-12 12:23:48,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-07-12 12:23:48,663 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:23:48,663 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] [2022-07-12 12:23:48,698 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-12 12:23:48,877 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 [2022-07-12 12:23:48,878 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:23:48,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:23:48,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1528264412, now seen corresponding path program 3 times [2022-07-12 12:23:48,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:23:48,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521443833] [2022-07-12 12:23:48,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:23:48,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:23:48,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:49,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:23:49,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:49,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 12:23:49,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:49,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:23:49,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:49,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-12 12:23:49,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:49,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:23:49,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:49,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 12:23:49,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:49,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:23:49,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:49,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:23:49,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:49,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 12:23:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:49,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:23:49,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:49,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 12:23:49,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:49,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:23:49,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:49,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-12 12:23:49,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:49,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:23:49,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:49,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:23:49,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:49,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 12:23:49,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:49,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-12 12:23:49,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:49,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-12 12:23:49,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:49,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 12:23:49,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:49,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 12:23:49,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:49,339 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-07-12 12:23:49,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:23:49,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521443833] [2022-07-12 12:23:49,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521443833] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 12:23:49,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175391578] [2022-07-12 12:23:49,340 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-12 12:23:49,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 12:23:49,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:23:49,344 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) [2022-07-12 12:23:49,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-12 12:23:50,165 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-07-12 12:23:50,166 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 12:23:50,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 3320 conjuncts, 52 conjunts are in the unsatisfiable core [2022-07-12 12:23:50,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:23:50,611 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-07-12 12:23:50,611 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:23:50,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [175391578] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:23:50,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 12:23:50,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [11] total 23 [2022-07-12 12:23:50,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746523632] [2022-07-12 12:23:50,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:23:50,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-12 12:23:50,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:23:50,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-12 12:23:50,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2022-07-12 12:23:50,614 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) [2022-07-12 12:23:52,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:23:52,924 INFO L93 Difference]: Finished difference Result 11871 states and 17611 transitions. [2022-07-12 12:23:52,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-12 12:23:52,925 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 [2022-07-12 12:23:52,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:23:52,961 INFO L225 Difference]: With dead ends: 11871 [2022-07-12 12:23:52,961 INFO L226 Difference]: Without dead ends: 6267 [2022-07-12 12:23:52,983 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 [2022-07-12 12:23:52,983 INFO L413 NwaCegarLoop]: 3677 mSDtfsCounter, 2136 mSDsluCounter, 42247 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.4s IncrementalHoareTripleChecker+Time [2022-07-12 12:23:52,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2167 Valid, 45924 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-12 12:23:52,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6267 states. [2022-07-12 12:23:53,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6267 to 5618. [2022-07-12 12:23:53,460 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) [2022-07-12 12:23:53,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5618 states to 5618 states and 8223 transitions. [2022-07-12 12:23:53,483 INFO L78 Accepts]: Start accepts. Automaton has 5618 states and 8223 transitions. Word has length 175 [2022-07-12 12:23:53,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:23:53,484 INFO L495 AbstractCegarLoop]: Abstraction has 5618 states and 8223 transitions. [2022-07-12 12:23:53,484 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) [2022-07-12 12:23:53,484 INFO L276 IsEmpty]: Start isEmpty. Operand 5618 states and 8223 transitions. [2022-07-12 12:23:53,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-07-12 12:23:53,506 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:23:53,508 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] [2022-07-12 12:23:53,538 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-12 12:23:53,735 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 [2022-07-12 12:23:53,736 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:23:53,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:23:53,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1090941869, now seen corresponding path program 1 times [2022-07-12 12:23:53,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:23:53,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794513998] [2022-07-12 12:23:53,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:23:53,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:23:53,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:54,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:23:54,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:54,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 12:23:54,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:54,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:23:54,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:54,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-12 12:23:54,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:54,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:23:54,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:54,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 12:23:54,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:54,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:23:54,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:54,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:23:54,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:54,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 12:23:54,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:54,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:23:54,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:54,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 12:23:54,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:54,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:23:54,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:54,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-12 12:23:54,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:54,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:23:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:54,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 12:23:54,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:54,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-12 12:23:54,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:54,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 12:23:54,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:54,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-12 12:23:54,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:54,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:23:54,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:54,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:23:54,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:54,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 12:23:54,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:54,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-12 12:23:54,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:54,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-12 12:23:54,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:54,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-12 12:23:54,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:54,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 12:23:54,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:54,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 12:23:54,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:54,282 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-12 12:23:54,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:23:54,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794513998] [2022-07-12 12:23:54,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794513998] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 12:23:54,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792956543] [2022-07-12 12:23:54,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:23:54,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 12:23:54,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:23:54,284 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) [2022-07-12 12:23:54,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-12 12:23:55,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:55,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 4258 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-12 12:23:55,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:23:55,377 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-07-12 12:23:55,378 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:23:55,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792956543] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:23:55,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 12:23:55,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 16 [2022-07-12 12:23:55,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60925152] [2022-07-12 12:23:55,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:23:55,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 12:23:55,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:23:55,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 12:23:55,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-07-12 12:23:55,383 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) [2022-07-12 12:23:55,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:23:55,875 INFO L93 Difference]: Finished difference Result 11777 states and 17319 transitions. [2022-07-12 12:23:55,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 12:23:55,875 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 [2022-07-12 12:23:55,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:23:55,905 INFO L225 Difference]: With dead ends: 11777 [2022-07-12 12:23:55,905 INFO L226 Difference]: Without dead ends: 6175 [2022-07-12 12:23:55,924 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 [2022-07-12 12:23:55,925 INFO L413 NwaCegarLoop]: 1853 mSDtfsCounter, 140 mSDsluCounter, 9143 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2022-07-12 12:23:55,925 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] [2022-07-12 12:23:55,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6175 states. [2022-07-12 12:23:56,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6175 to 5622. [2022-07-12 12:23:56,318 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) [2022-07-12 12:23:56,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5622 states to 5622 states and 8227 transitions. [2022-07-12 12:23:56,342 INFO L78 Accepts]: Start accepts. Automaton has 5622 states and 8227 transitions. Word has length 215 [2022-07-12 12:23:56,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:23:56,343 INFO L495 AbstractCegarLoop]: Abstraction has 5622 states and 8227 transitions. [2022-07-12 12:23:56,343 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) [2022-07-12 12:23:56,343 INFO L276 IsEmpty]: Start isEmpty. Operand 5622 states and 8227 transitions. [2022-07-12 12:23:56,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-07-12 12:23:56,359 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:23:56,359 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] [2022-07-12 12:23:56,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-12 12:23:56,575 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 [2022-07-12 12:23:56,576 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:23:56,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:23:56,576 INFO L85 PathProgramCache]: Analyzing trace with hash 2056312139, now seen corresponding path program 2 times [2022-07-12 12:23:56,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:23:56,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712203228] [2022-07-12 12:23:56,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:23:56,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:23:56,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:56,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:23:56,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:56,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 12:23:56,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:56,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:23:56,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:56,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-12 12:23:56,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:56,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:23:56,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:56,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 12:23:56,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:56,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:23:56,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:56,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:23:56,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:56,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 12:23:56,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:57,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:23:57,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:57,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 12:23:57,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:57,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:23:57,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:57,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:23:57,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:57,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 12:23:57,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:57,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:23:57,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:57,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 12:23:57,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:57,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 12:23:57,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:57,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-12 12:23:57,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:57,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-12 12:23:57,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:57,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:23:57,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:57,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:23:57,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:57,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 12:23:57,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:57,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-12 12:23:57,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:57,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-12 12:23:57,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:57,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-12 12:23:57,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:57,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-12 12:23:57,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:57,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 12:23:57,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:23:57,192 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-07-12 12:23:57,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:23:57,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712203228] [2022-07-12 12:23:57,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712203228] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 12:23:57,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773252498] [2022-07-12 12:23:57,193 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 12:23:57,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 12:23:57,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:23:57,195 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) [2022-07-12 12:23:57,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-12 12:23:58,066 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-12 12:23:58,066 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 12:23:58,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 4284 conjuncts, 124 conjunts are in the unsatisfiable core [2022-07-12 12:23:58,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:23:58,837 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-07-12 12:23:58,841 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-07-12 12:23:58,845 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 61 proven. 22 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-07-12 12:23:58,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 12:23:59,456 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-07-12 12:23:59,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773252498] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 12:23:59,457 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-12 12:23:59,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 17, 8] total 32 [2022-07-12 12:23:59,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641262795] [2022-07-12 12:23:59,457 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-12 12:23:59,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-07-12 12:23:59,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:23:59,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-07-12 12:23:59,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=887, Unknown=0, NotChecked=0, Total=992 [2022-07-12 12:23:59,459 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) [2022-07-12 12:24:15,416 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:24:17,437 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:24:20,996 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:24:22,829 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:24:24,852 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:24:26,867 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:24:28,884 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:24:30,904 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:24:32,924 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:24:34,794 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:24:36,819 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:24:38,842 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:24:40,862 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:24:42,877 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:24:44,891 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:24:46,911 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:24:48,929 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:24:50,944 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:24:52,965 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:24:54,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:24:56,762 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:24:58,785 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:25:07,431 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:25:09,450 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:25:12,535 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:25:15,465 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:25:20,308 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:25:27,112 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:25:29,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:25:31,154 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:25:33,168 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:25:35,183 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:25:37,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:25:39,225 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:25:41,251 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:25:43,282 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:25:45,300 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:25:47,321 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:25:49,346 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:25:51,363 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:25:53,380 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:25:55,394 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 []