./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.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 0c3010ce5e1d1499df5a7edf91735fcbf8e6e49f56d21e0e77b6af352c375fd6 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 12:53:22,715 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 12:53:22,717 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 12:53:22,757 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 12:53:22,758 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 12:53:22,758 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 12:53:22,760 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 12:53:22,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 12:53:22,763 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 12:53:22,766 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 12:53:22,767 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 12:53:22,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 12:53:22,768 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 12:53:22,770 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 12:53:22,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 12:53:22,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 12:53:22,773 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 12:53:22,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 12:53:22,775 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 12:53:22,779 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 12:53:22,780 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 12:53:22,781 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 12:53:22,782 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 12:53:22,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 12:53:22,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 12:53:22,785 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 12:53:22,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 12:53:22,786 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 12:53:22,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 12:53:22,787 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 12:53:22,787 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 12:53:22,788 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 12:53:22,789 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 12:53:22,789 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 12:53:22,790 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 12:53:22,791 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 12:53:22,791 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 12:53:22,791 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 12:53:22,792 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 12:53:22,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 12:53:22,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 12:53:22,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 12:53:22,795 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 12:53:22,818 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 12:53:22,819 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 12:53:22,820 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 12:53:22,820 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 12:53:22,820 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 12:53:22,820 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 12:53:22,821 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 12:53:22,821 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 12:53:22,821 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 12:53:22,822 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 12:53:22,822 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 12:53:22,822 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 12:53:22,822 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 12:53:22,822 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 12:53:22,822 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 12:53:22,823 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 12:53:22,823 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 12:53:22,823 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 12:53:22,823 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 12:53:22,824 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 12:53:22,824 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 12:53:22,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:53:22,825 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 12:53:22,825 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 12:53:22,825 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 12:53:22,825 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 12:53:22,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 12:53:22,825 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 12:53:22,825 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 12:53:22,826 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 12:53:22,826 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c3010ce5e1d1499df5a7edf91735fcbf8e6e49f56d21e0e77b6af352c375fd6 [2022-07-12 12:53:23,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 12:53:23,110 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 12:53:23,112 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 12:53:23,112 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 12:53:23,113 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 12:53:23,114 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i [2022-07-12 12:53:23,159 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d8f2c7c2/66cc047548814ff48c755523b4182aef/FLAGbde68b77d [2022-07-12 12:53:23,732 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 12:53:23,733 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i [2022-07-12 12:53:23,764 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d8f2c7c2/66cc047548814ff48c755523b4182aef/FLAGbde68b77d [2022-07-12 12:53:24,188 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d8f2c7c2/66cc047548814ff48c755523b4182aef [2022-07-12 12:53:24,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 12:53:24,191 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 12:53:24,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 12:53:24,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 12:53:24,196 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 12:53:24,196 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:53:24" (1/1) ... [2022-07-12 12:53:24,197 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22228386 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:53:24, skipping insertion in model container [2022-07-12 12:53:24,197 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:53:24" (1/1) ... [2022-07-12 12:53:24,201 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 12:53:24,315 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 12:53:24,662 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4571] [2022-07-12 12:53:24,663 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4572-4573] [2022-07-12 12:53:24,827 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i[141860,141873] [2022-07-12 12:53:25,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:53:25,532 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 12:53:25,599 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4571] [2022-07-12 12:53:25,600 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4572-4573] [2022-07-12 12:53:25,610 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i[141860,141873] [2022-07-12 12:53:25,900 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:53:25,959 INFO L208 MainTranslator]: Completed translation [2022-07-12 12:53:25,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:53:25 WrapperNode [2022-07-12 12:53:25,960 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 12:53:25,961 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 12:53:25,961 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 12:53:25,961 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 12:53:25,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:53:25" (1/1) ... [2022-07-12 12:53:26,033 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:53:25" (1/1) ... [2022-07-12 12:53:26,189 INFO L137 Inliner]: procedures = 250, calls = 2339, calls flagged for inlining = 129, calls inlined = 127, statements flattened = 6516 [2022-07-12 12:53:26,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 12:53:26,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 12:53:26,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 12:53:26,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 12:53:26,215 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:53:25" (1/1) ... [2022-07-12 12:53:26,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:53:25" (1/1) ... [2022-07-12 12:53:26,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:53:25" (1/1) ... [2022-07-12 12:53:26,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:53:25" (1/1) ... [2022-07-12 12:53:26,382 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:53:25" (1/1) ... [2022-07-12 12:53:26,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:53:25" (1/1) ... [2022-07-12 12:53:26,415 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:53:25" (1/1) ... [2022-07-12 12:53:26,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 12:53:26,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 12:53:26,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 12:53:26,445 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 12:53:26,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:53:25" (1/1) ... [2022-07-12 12:53:26,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:53:26,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:53:26,484 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 12:53:26,502 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 12:53:26,514 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_cmd_from_context [2022-07-12 12:53:26,514 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_cmd_from_context [2022-07-12 12:53:26,514 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-07-12 12:53:26,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 12:53:26,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 12:53:26,515 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-12 12:53:26,515 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-12 12:53:26,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 12:53:26,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 12:53:26,515 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_delete_hba [2022-07-12 12:53:26,515 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_delete_hba [2022-07-12 12:53:26,515 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2022-07-12 12:53:26,516 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2022-07-12 12:53:26,516 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2022-07-12 12:53:26,516 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2022-07-12 12:53:26,516 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-12 12:53:26,516 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-12 12:53:26,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-12 12:53:26,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-12 12:53:26,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 12:53:26,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 12:53:26,517 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_status_get [2022-07-12 12:53:26,517 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_status_get [2022-07-12 12:53:26,517 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_build_sys_table [2022-07-12 12:53:26,517 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_build_sys_table [2022-07-12 12:53:26,517 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_bufflen [2022-07-12 12:53:26,517 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_bufflen [2022-07-12 12:53:26,518 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_online_hba [2022-07-12 12:53:26,518 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_online_hba [2022-07-12 12:53:26,518 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_remove_host [2022-07-12 12:53:26,518 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_remove_host [2022-07-12 12:53:26,518 INFO L130 BoogieDeclarations]: Found specification of procedure __scsi_iterate_devices [2022-07-12 12:53:26,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __scsi_iterate_devices [2022-07-12 12:53:26,518 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-12 12:53:26,519 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-12 12:53:26,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 12:53:26,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 12:53:26,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_host_template_2 [2022-07-12 12:53:26,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_host_template_2 [2022-07-12 12:53:26,519 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2022-07-12 12:53:26,519 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2022-07-12 12:53:26,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 12:53:26,520 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 12:53:26,520 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_query_scalar [2022-07-12 12:53:26,520 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_query_scalar [2022-07-12 12:53:26,520 INFO L130 BoogieDeclarations]: Found specification of procedure dma_high [2022-07-12 12:53:26,520 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_high [2022-07-12 12:53:26,521 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 12:53:26,521 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 12:53:26,521 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-12 12:53:26,521 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-12 12:53:26,522 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_hba_reset [2022-07-12 12:53:26,522 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_hba_reset [2022-07-12 12:53:26,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 12:53:26,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 12:53:26,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-12 12:53:26,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-12 12:53:26,523 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2022-07-12 12:53:26,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2022-07-12 12:53:26,523 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-12 12:53:26,523 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-12 12:53:26,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 12:53:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-12 12:53:26,524 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-12 12:53:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 12:53:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-12 12:53:26,524 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-12 12:53:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_lct_get [2022-07-12 12:53:26,525 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_lct_get [2022-07-12 12:53:26,525 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-12 12:53:26,525 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-12 12:53:26,525 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-12 12:53:26,525 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-12 12:53:26,525 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-12 12:53:26,526 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-12 12:53:26,526 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_reparse_lct [2022-07-12 12:53:26,526 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_reparse_lct [2022-07-12 12:53:26,526 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-12 12:53:26,526 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-12 12:53:26,526 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_post_wait [2022-07-12 12:53:26,526 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_post_wait [2022-07-12 12:53:26,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-12 12:53:26,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-12 12:53:26,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-12 12:53:26,527 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-12 12:53:26,527 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-12 12:53:26,527 INFO L130 BoogieDeclarations]: Found specification of procedure dma_low [2022-07-12 12:53:26,528 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_low [2022-07-12 12:53:26,528 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-12 12:53:26,528 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-12 12:53:26,528 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-12 12:53:26,528 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-12 12:53:26,529 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_adjust_queue_depth [2022-07-12 12:53:26,529 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_adjust_queue_depth [2022-07-12 12:53:26,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-12 12:53:26,529 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_activate_hba [2022-07-12 12:53:26,529 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_activate_hba [2022-07-12 12:53:26,530 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-07-12 12:53:26,530 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-07-12 12:53:26,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 12:53:26,530 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_ioctl [2022-07-12 12:53:26,530 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_ioctl [2022-07-12 12:53:26,530 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_reset_hba [2022-07-12 12:53:26,530 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_reset_hba [2022-07-12 12:53:26,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 12:53:26,531 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 12:53:26,531 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_read_blink_led [2022-07-12 12:53:26,531 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_read_blink_led [2022-07-12 12:53:26,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-12 12:53:26,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-12 12:53:26,531 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-07-12 12:53:26,531 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-07-12 12:53:26,532 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 12:53:26,532 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 12:53:26,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 12:53:26,534 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-12 12:53:26,534 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-12 12:53:26,534 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_send_nop [2022-07-12 12:53:26,534 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_send_nop [2022-07-12 12:53:26,536 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-07-12 12:53:26,536 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-07-12 12:53:26,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 12:53:26,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 12:53:26,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 12:53:26,541 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_install_device [2022-07-12 12:53:26,541 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_install_device [2022-07-12 12:53:26,541 INFO L130 BoogieDeclarations]: Found specification of procedure dpt_dma64 [2022-07-12 12:53:26,541 INFO L138 BoogieDeclarations]: Found implementation of procedure dpt_dma64 [2022-07-12 12:53:26,541 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-12 12:53:26,541 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-12 12:53:26,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 12:53:26,541 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_cmd_to_context [2022-07-12 12:53:26,542 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_cmd_to_context [2022-07-12 12:53:26,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 12:53:26,542 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-12 12:53:26,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-12 12:53:26,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-12 12:53:26,542 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 12:53:26,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 12:53:26,542 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-07-12 12:53:26,542 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-07-12 12:53:26,543 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-07-12 12:53:26,543 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-07-12 12:53:26,543 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_set_state [2022-07-12 12:53:26,543 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_set_state [2022-07-12 12:53:26,543 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-07-12 12:53:26,543 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-07-12 12:53:26,543 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_online [2022-07-12 12:53:26,543 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_online [2022-07-12 12:53:26,543 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_post_this [2022-07-12 12:53:26,544 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_post_this [2022-07-12 12:53:26,544 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-12 12:53:26,544 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-12 12:53:26,544 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-07-12 12:53:26,544 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-07-12 12:53:26,544 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_sys_shutdown [2022-07-12 12:53:26,544 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_sys_shutdown [2022-07-12 12:53:26,544 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-12 12:53:26,544 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-12 12:53:26,544 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-12 12:53:26,545 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-12 12:53:26,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 12:53:26,545 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_report_hba_unit [2022-07-12 12:53:26,545 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_report_hba_unit [2022-07-12 12:53:26,545 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2022-07-12 12:53:26,545 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2022-07-12 12:53:26,545 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-07-12 12:53:26,545 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-07-12 12:53:26,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 12:53:26,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 12:53:26,546 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-12 12:53:26,546 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-12 12:53:27,187 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 12:53:27,189 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 12:53:27,687 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 12:53:39,861 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 12:53:39,874 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 12:53:39,874 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 12:53:39,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:53:39 BoogieIcfgContainer [2022-07-12 12:53:39,877 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 12:53:39,878 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 12:53:39,878 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 12:53:39,881 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 12:53:39,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 12:53:24" (1/3) ... [2022-07-12 12:53:39,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a457040 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:53:39, skipping insertion in model container [2022-07-12 12:53:39,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:53:25" (2/3) ... [2022-07-12 12:53:39,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a457040 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:53:39, skipping insertion in model container [2022-07-12 12:53:39,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:53:39" (3/3) ... [2022-07-12 12:53:39,883 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i [2022-07-12 12:53:39,891 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 12:53:39,892 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 12:53:39,957 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 12:53:39,962 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@4948fb09, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2f53d00e [2022-07-12 12:53:39,962 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 12:53:39,971 INFO L276 IsEmpty]: Start isEmpty. Operand has 2062 states, 1547 states have (on average 1.411764705882353) internal successors, (2184), 1571 states have internal predecessors, (2184), 437 states have call successors, (437), 77 states have call predecessors, (437), 76 states have return successors, (431), 430 states have call predecessors, (431), 431 states have call successors, (431) [2022-07-12 12:53:39,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-12 12:53:39,996 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:53:39,996 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-07-12 12:53:39,997 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:53:40,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:53:40,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1281370987, now seen corresponding path program 1 times [2022-07-12 12:53:40,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:53:40,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461480793] [2022-07-12 12:53:40,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:53:40,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:53:40,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:53:40,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:53:40,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:53:40,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:53:40,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:53:40,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:53:40,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:53:40,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-12 12:53:40,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:53:40,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 12:53:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:53:40,597 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-12 12:53:40,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:53:40,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461480793] [2022-07-12 12:53:40,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461480793] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:53:40,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:53:40,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 12:53:40,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532874470] [2022-07-12 12:53:40,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:53:40,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:53:40,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:53:40,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:53:40,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 12:53:40,629 INFO L87 Difference]: Start difference. First operand has 2062 states, 1547 states have (on average 1.411764705882353) internal successors, (2184), 1571 states have internal predecessors, (2184), 437 states have call successors, (437), 77 states have call predecessors, (437), 76 states have return successors, (431), 430 states have call predecessors, (431), 431 states have call successors, (431) Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 12:53:43,754 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 12:53:48,119 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:53:52,580 WARN L534 Checker$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 12:53:54,618 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:54:00,298 WARN L534 Checker$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 12:54:02,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:54:02,371 INFO L93 Difference]: Finished difference Result 6914 states and 10727 transitions. [2022-07-12 12:54:02,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 12:54:02,374 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 58 [2022-07-12 12:54:02,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:54:02,472 INFO L225 Difference]: With dead ends: 6914 [2022-07-12 12:54:02,472 INFO L226 Difference]: Without dead ends: 4806 [2022-07-12 12:54:02,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 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 12:54:02,516 INFO L413 NwaCegarLoop]: 3229 mSDtfsCounter, 5160 mSDsluCounter, 4966 mSDsCounter, 0 mSdLazyCounter, 4273 mSolverCounterSat, 2826 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5518 SdHoareTripleChecker+Valid, 8195 SdHoareTripleChecker+Invalid, 7103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2826 IncrementalHoareTripleChecker+Valid, 4273 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.2s IncrementalHoareTripleChecker+Time [2022-07-12 12:54:02,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5518 Valid, 8195 Invalid, 7103 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2826 Valid, 4273 Invalid, 4 Unknown, 0 Unchecked, 21.2s Time] [2022-07-12 12:54:02,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4806 states. [2022-07-12 12:54:02,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4806 to 3741. [2022-07-12 12:54:02,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3741 states, 2810 states have (on average 1.383629893238434) internal successors, (3888), 2839 states have internal predecessors, (3888), 789 states have call successors, (789), 142 states have call predecessors, (789), 141 states have return successors, (788), 786 states have call predecessors, (788), 788 states have call successors, (788) [2022-07-12 12:54:02,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3741 states to 3741 states and 5465 transitions. [2022-07-12 12:54:02,772 INFO L78 Accepts]: Start accepts. Automaton has 3741 states and 5465 transitions. Word has length 58 [2022-07-12 12:54:02,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:54:02,772 INFO L495 AbstractCegarLoop]: Abstraction has 3741 states and 5465 transitions. [2022-07-12 12:54:02,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 12:54:02,774 INFO L276 IsEmpty]: Start isEmpty. Operand 3741 states and 5465 transitions. [2022-07-12 12:54:02,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-12 12:54:02,782 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:54:02,782 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-07-12 12:54:02,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 12:54:02,785 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:54:02,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:54:02,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1620564797, now seen corresponding path program 1 times [2022-07-12 12:54:02,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:54:02,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344665452] [2022-07-12 12:54:02,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:54:02,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:54:02,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:54:03,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:54:03,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:54:03,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:54:03,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:54:03,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:54:03,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:54:03,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-12 12:54:03,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:54:03,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 12:54:03,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:54:03,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 12:54:03,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:54:03,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 12:54:03,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:54:03,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 12:54:03,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:54:03,158 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-12 12:54:03,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:54:03,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344665452] [2022-07-12 12:54:03,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344665452] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:54:03,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:54:03,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 12:54:03,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330888696] [2022-07-12 12:54:03,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:54:03,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 12:54:03,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:54:03,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 12:54:03,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 12:54:03,161 INFO L87 Difference]: Start difference. First operand 3741 states and 5465 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (14), 7 states have call predecessors, (14), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 12:54:07,174 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:54:12,247 WARN L534 Checker$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 12:54:13,661 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:54:18,777 WARN L534 Checker$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 12:54:20,824 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:54:26,902 WARN L534 Checker$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 12:54:28,996 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:54:31,100 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:54:33,506 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:54:35,610 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:54:38,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:54:38,922 INFO L93 Difference]: Finished difference Result 10446 states and 16250 transitions. [2022-07-12 12:54:38,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 12:54:38,923 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (14), 7 states have call predecessors, (14), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2022-07-12 12:54:38,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:54:38,976 INFO L225 Difference]: With dead ends: 10446 [2022-07-12 12:54:38,976 INFO L226 Difference]: Without dead ends: 10443 [2022-07-12 12:54:38,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-07-12 12:54:38,986 INFO L413 NwaCegarLoop]: 3609 mSDtfsCounter, 7156 mSDsluCounter, 6808 mSDsCounter, 0 mSdLazyCounter, 6865 mSolverCounterSat, 4320 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7596 SdHoareTripleChecker+Valid, 10417 SdHoareTripleChecker+Invalid, 11194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4320 IncrementalHoareTripleChecker+Valid, 6865 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.9s IncrementalHoareTripleChecker+Time [2022-07-12 12:54:38,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7596 Valid, 10417 Invalid, 11194 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4320 Valid, 6865 Invalid, 9 Unknown, 0 Unchecked, 34.9s Time] [2022-07-12 12:54:38,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10443 states. [2022-07-12 12:54:39,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10443 to 7641. [2022-07-12 12:54:39,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7641 states, 5719 states have (on average 1.3901031648889666) internal successors, (7950), 5783 states have internal predecessors, (7950), 1627 states have call successors, (1627), 271 states have call predecessors, (1627), 294 states have return successors, (1964), 1632 states have call predecessors, (1964), 1626 states have call successors, (1964) [2022-07-12 12:54:39,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7641 states to 7641 states and 11541 transitions. [2022-07-12 12:54:39,297 INFO L78 Accepts]: Start accepts. Automaton has 7641 states and 11541 transitions. Word has length 84 [2022-07-12 12:54:39,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:54:39,299 INFO L495 AbstractCegarLoop]: Abstraction has 7641 states and 11541 transitions. [2022-07-12 12:54:39,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (14), 7 states have call predecessors, (14), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 12:54:39,300 INFO L276 IsEmpty]: Start isEmpty. Operand 7641 states and 11541 transitions. [2022-07-12 12:54:39,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-12 12:54:39,308 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:54:39,309 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-07-12 12:54:39,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 12:54:39,309 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:54:39,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:54:39,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1234917850, now seen corresponding path program 1 times [2022-07-12 12:54:39,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:54:39,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815515182] [2022-07-12 12:54:39,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:54:39,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:54:39,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:54:39,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:54:39,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:54:39,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:54:39,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:54:39,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:54:39,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:54:39,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-12 12:54:39,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:54:39,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 12:54:39,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:54:39,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-12 12:54:39,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:54:39,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 12:54:39,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:54:39,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 12:54:39,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:54:39,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-12 12:54:39,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:54:39,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 12:54:39,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:54:39,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-12 12:54:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:54:39,519 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-12 12:54:39,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:54:39,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815515182] [2022-07-12 12:54:39,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815515182] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:54:39,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:54:39,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 12:54:39,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571290826] [2022-07-12 12:54:39,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:54:39,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 12:54:39,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:54:39,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 12:54:39,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 12:54:39,521 INFO L87 Difference]: Start difference. First operand 7641 states and 11541 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-12 12:54:43,503 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:54:46,644 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:54:51,175 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:54:52,241 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:55:00,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:55:03,839 WARN L534 Checker$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 12:55:06,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:55:06,849 INFO L93 Difference]: Finished difference Result 28515 states and 44312 transitions. [2022-07-12 12:55:06,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 12:55:06,849 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 103 [2022-07-12 12:55:06,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:55:07,090 INFO L225 Difference]: With dead ends: 28515 [2022-07-12 12:55:07,091 INFO L226 Difference]: Without dead ends: 20885 [2022-07-12 12:55:07,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-07-12 12:55:07,128 INFO L413 NwaCegarLoop]: 3216 mSDtfsCounter, 8071 mSDsluCounter, 6346 mSDsCounter, 0 mSdLazyCounter, 6270 mSolverCounterSat, 5422 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8549 SdHoareTripleChecker+Valid, 9562 SdHoareTripleChecker+Invalid, 11696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5422 IncrementalHoareTripleChecker+Valid, 6270 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.3s IncrementalHoareTripleChecker+Time [2022-07-12 12:55:07,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8549 Valid, 9562 Invalid, 11696 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5422 Valid, 6270 Invalid, 4 Unknown, 0 Unchecked, 26.3s Time] [2022-07-12 12:55:07,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20885 states. [2022-07-12 12:55:07,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20885 to 16042. [2022-07-12 12:55:07,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16042 states, 12181 states have (on average 1.3951235530744601) internal successors, (16994), 12308 states have internal predecessors, (16994), 3282 states have call successors, (3282), 492 states have call predecessors, (3282), 578 states have return successors, (4014), 3327 states have call predecessors, (4014), 3281 states have call successors, (4014) [2022-07-12 12:55:07,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16042 states to 16042 states and 24290 transitions. [2022-07-12 12:55:07,866 INFO L78 Accepts]: Start accepts. Automaton has 16042 states and 24290 transitions. Word has length 103 [2022-07-12 12:55:07,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:55:07,866 INFO L495 AbstractCegarLoop]: Abstraction has 16042 states and 24290 transitions. [2022-07-12 12:55:07,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-12 12:55:07,867 INFO L276 IsEmpty]: Start isEmpty. Operand 16042 states and 24290 transitions. [2022-07-12 12:55:07,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-12 12:55:07,874 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:55:07,874 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-07-12 12:55:07,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 12:55:07,875 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:55:07,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:55:07,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1832344265, now seen corresponding path program 1 times [2022-07-12 12:55:07,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:55:07,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86682307] [2022-07-12 12:55:07,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:55:07,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:55:07,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:55:08,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:55:08,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:55:08,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:55:08,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:55:08,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:55:08,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:55:08,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-12 12:55:08,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:55:08,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 12:55:08,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:55:08,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 12:55:08,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:55:08,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 12:55:08,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:55:08,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 12:55:08,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:55:08,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 12:55:08,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:55:08,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 12:55:08,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:55:08,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 12:55:08,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:55:08,276 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-12 12:55:08,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:55:08,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86682307] [2022-07-12 12:55:08,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86682307] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:55:08,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:55:08,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 12:55:08,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284149035] [2022-07-12 12:55:08,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:55:08,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 12:55:08,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:55:08,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 12:55:08,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-12 12:55:08,279 INFO L87 Difference]: Start difference. First operand 16042 states and 24290 transitions. Second operand has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 5 states have internal predecessors, (76), 4 states have call successors, (17), 8 states have call predecessors, (17), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2022-07-12 12:55:13,276 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:55:15,310 WARN L534 Checker$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 12:55:20,870 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:55:22,915 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:55:28,814 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:55:30,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:55:48,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:55:48,939 INFO L93 Difference]: Finished difference Result 62623 states and 99419 transitions. [2022-07-12 12:55:48,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-07-12 12:55:48,940 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 5 states have internal predecessors, (76), 4 states have call successors, (17), 8 states have call predecessors, (17), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 115 [2022-07-12 12:55:48,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:55:49,332 INFO L225 Difference]: With dead ends: 62623 [2022-07-12 12:55:49,332 INFO L226 Difference]: Without dead ends: 46601 [2022-07-12 12:55:49,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=382, Invalid=1178, Unknown=0, NotChecked=0, Total=1560 [2022-07-12 12:55:49,429 INFO L413 NwaCegarLoop]: 3134 mSDtfsCounter, 12798 mSDsluCounter, 11912 mSDsCounter, 0 mSdLazyCounter, 15672 mSolverCounterSat, 6229 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13215 SdHoareTripleChecker+Valid, 15046 SdHoareTripleChecker+Invalid, 21903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6229 IncrementalHoareTripleChecker+Valid, 15672 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.8s IncrementalHoareTripleChecker+Time [2022-07-12 12:55:49,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13215 Valid, 15046 Invalid, 21903 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6229 Valid, 15672 Invalid, 2 Unknown, 0 Unchecked, 37.8s Time] [2022-07-12 12:55:49,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46601 states. [2022-07-12 12:55:51,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46601 to 31989. [2022-07-12 12:55:51,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31989 states, 24286 states have (on average 1.394013011611628) internal successors, (33855), 24556 states have internal predecessors, (33855), 6536 states have call successors, (6536), 977 states have call predecessors, (6536), 1166 states have return successors, (8364), 6627 states have call predecessors, (8364), 6535 states have call successors, (8364) [2022-07-12 12:55:51,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31989 states to 31989 states and 48755 transitions. [2022-07-12 12:55:51,394 INFO L78 Accepts]: Start accepts. Automaton has 31989 states and 48755 transitions. Word has length 115 [2022-07-12 12:55:51,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:55:51,397 INFO L495 AbstractCegarLoop]: Abstraction has 31989 states and 48755 transitions. [2022-07-12 12:55:51,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 5 states have internal predecessors, (76), 4 states have call successors, (17), 8 states have call predecessors, (17), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2022-07-12 12:55:51,397 INFO L276 IsEmpty]: Start isEmpty. Operand 31989 states and 48755 transitions. [2022-07-12 12:55:51,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-12 12:55:51,407 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:55:51,408 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-07-12 12:55:51,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 12:55:51,408 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:55:51,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:55:51,409 INFO L85 PathProgramCache]: Analyzing trace with hash 206450330, now seen corresponding path program 1 times [2022-07-12 12:55:51,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:55:51,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067664854] [2022-07-12 12:55:51,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:55:51,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:55:51,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:55:51,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:55:51,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:55:51,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:55:51,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:55:51,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:55:51,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:55:51,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-12 12:55:51,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:55:51,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-12 12:55:51,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:55:51,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 12:55:51,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:55:51,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 12:55:51,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:55:51,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 12:55:51,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:55:51,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-12 12:55:51,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:55:51,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 12:55:51,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:55:51,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 12:55:51,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:55:51,866 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-12 12:55:51,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:55:51,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067664854] [2022-07-12 12:55:51,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067664854] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:55:51,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:55:51,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 12:55:51,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609249417] [2022-07-12 12:55:51,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:55:51,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 12:55:51,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:55:51,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 12:55:51,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-12 12:55:51,869 INFO L87 Difference]: Start difference. First operand 31989 states and 48755 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 5 states have internal predecessors, (75), 4 states have call successors, (17), 8 states have call predecessors, (17), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2022-07-12 12:55:57,573 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:56:04,778 WARN L534 Checker$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 12:56:06,828 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:56:08,614 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:56:14,884 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:56:24,116 WARN L534 Checker$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 12:56:26,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:56:28,421 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:56:30,581 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:56:32,736 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:56:35,865 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 12:56:43,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:56:43,296 INFO L93 Difference]: Finished difference Result 124978 states and 200082 transitions. [2022-07-12 12:56:43,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-07-12 12:56:43,297 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 5 states have internal predecessors, (75), 4 states have call successors, (17), 8 states have call predecessors, (17), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 114 [2022-07-12 12:56:43,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:56:44,160 INFO L225 Difference]: With dead ends: 124978 [2022-07-12 12:56:44,160 INFO L226 Difference]: Without dead ends: 93009 [2022-07-12 12:56:44,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=382, Invalid=1178, Unknown=0, NotChecked=0, Total=1560 [2022-07-12 12:56:44,469 INFO L413 NwaCegarLoop]: 3624 mSDtfsCounter, 15488 mSDsluCounter, 13201 mSDsCounter, 0 mSdLazyCounter, 13311 mSolverCounterSat, 10166 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15901 SdHoareTripleChecker+Valid, 16825 SdHoareTripleChecker+Invalid, 23487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10166 IncrementalHoareTripleChecker+Valid, 13311 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.5s IncrementalHoareTripleChecker+Time [2022-07-12 12:56:44,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15901 Valid, 16825 Invalid, 23487 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10166 Valid, 13311 Invalid, 10 Unknown, 0 Unchecked, 46.5s Time] [2022-07-12 12:56:44,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93009 states. [2022-07-12 12:56:47,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93009 to 63787. [2022-07-12 12:56:47,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63787 states, 48400 states have (on average 1.3937396694214876) internal successors, (67457), 49020 states have internal predecessors, (67457), 13044 states have call successors, (13044), 1947 states have call predecessors, (13044), 2342 states have return successors, (17461), 13163 states have call predecessors, (17461), 13043 states have call successors, (17461) [2022-07-12 12:56:48,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63787 states to 63787 states and 97962 transitions. [2022-07-12 12:56:48,309 INFO L78 Accepts]: Start accepts. Automaton has 63787 states and 97962 transitions. Word has length 114 [2022-07-12 12:56:48,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:56:48,310 INFO L495 AbstractCegarLoop]: Abstraction has 63787 states and 97962 transitions. [2022-07-12 12:56:48,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 5 states have internal predecessors, (75), 4 states have call successors, (17), 8 states have call predecessors, (17), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2022-07-12 12:56:48,310 INFO L276 IsEmpty]: Start isEmpty. Operand 63787 states and 97962 transitions. [2022-07-12 12:56:48,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-07-12 12:56:48,321 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:56:48,321 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-07-12 12:56:48,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 12:56:48,321 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:56:48,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:56:48,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1679853886, now seen corresponding path program 1 times [2022-07-12 12:56:48,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:56:48,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854003182] [2022-07-12 12:56:48,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:56:48,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:56:48,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:56:48,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:56:48,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:56:48,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:56:48,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:56:48,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:56:48,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:56:48,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-12 12:56:48,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:56:48,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 12:56:48,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:56:48,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 12:56:48,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:56:48,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 12:56:48,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:56:48,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 12:56:48,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:56:48,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 12:56:48,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:56:48,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 12:56:48,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:56:48,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 12:56:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:56:48,804 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-12 12:56:48,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:56:48,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854003182] [2022-07-12 12:56:48,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854003182] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:56:48,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:56:48,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 12:56:48,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234723730] [2022-07-12 12:56:48,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:56:48,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 12:56:48,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:56:48,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 12:56:48,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-12 12:56:48,806 INFO L87 Difference]: Start difference. First operand 63787 states and 97962 transitions. Second operand has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 5 states have internal predecessors, (78), 4 states have call successors, (17), 8 states have call predecessors, (17), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2022-07-12 12:56:54,102 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 12:56:59,280 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:57:03,968 WARN L534 Checker$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 12:57:10,404 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:57:12,564 WARN L534 Checker$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 12:57:14,728 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:57:16,835 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:57:18,948 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:57:24,084 WARN L534 Checker$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 12:57:39,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:57:39,922 INFO L93 Difference]: Finished difference Result 249512 states and 403231 transitions. [2022-07-12 12:57:39,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-07-12 12:57:39,922 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.090909090909091) internal successors, (78), 5 states have internal predecessors, (78), 4 states have call successors, (17), 8 states have call predecessors, (17), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 117 [2022-07-12 12:57:39,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:57:42,114 INFO L225 Difference]: With dead ends: 249512 [2022-07-12 12:57:42,114 INFO L226 Difference]: Without dead ends: 185745 [2022-07-12 12:57:42,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=382, Invalid=1178, Unknown=0, NotChecked=0, Total=1560 [2022-07-12 12:57:42,664 INFO L413 NwaCegarLoop]: 3119 mSDtfsCounter, 18028 mSDsluCounter, 9936 mSDsCounter, 0 mSdLazyCounter, 11172 mSolverCounterSat, 12628 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18442 SdHoareTripleChecker+Valid, 13055 SdHoareTripleChecker+Invalid, 23809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 12628 IncrementalHoareTripleChecker+Valid, 11172 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.9s IncrementalHoareTripleChecker+Time [2022-07-12 12:57:42,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18442 Valid, 13055 Invalid, 23809 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [12628 Valid, 11172 Invalid, 9 Unknown, 0 Unchecked, 39.9s Time] [2022-07-12 12:57:42,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185745 states.