./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--dvb-usb--dvb-usb-opera.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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--dvb-usb--dvb-usb-opera.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 5c2ae4f9e22cc68a37a2a30aa0a104b47e23e2c796ef551349d7d369f3cb3d78 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 13:40:42,721 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 13:40:42,725 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 13:40:42,769 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 13:40:42,770 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 13:40:42,772 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 13:40:42,774 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 13:40:42,776 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 13:40:42,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 13:40:42,782 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 13:40:42,783 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 13:40:42,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 13:40:42,786 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 13:40:42,788 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 13:40:42,789 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 13:40:42,792 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 13:40:42,793 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 13:40:42,795 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 13:40:42,796 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 13:40:42,801 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 13:40:42,803 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 13:40:42,804 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 13:40:42,805 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 13:40:42,806 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 13:40:42,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 13:40:42,814 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 13:40:42,815 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 13:40:42,815 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 13:40:42,816 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 13:40:42,817 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 13:40:42,818 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 13:40:42,818 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 13:40:42,819 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 13:40:42,820 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 13:40:42,821 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 13:40:42,822 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 13:40:42,822 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 13:40:42,823 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 13:40:42,823 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 13:40:42,823 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 13:40:42,824 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 13:40:42,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 13:40:42,831 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 13:40:42,860 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 13:40:42,860 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 13:40:42,861 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 13:40:42,861 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 13:40:42,862 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 13:40:42,862 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 13:40:42,863 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 13:40:42,863 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 13:40:42,863 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 13:40:42,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 13:40:42,864 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 13:40:42,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 13:40:42,864 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 13:40:42,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 13:40:42,865 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 13:40:42,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 13:40:42,865 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 13:40:42,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 13:40:42,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 13:40:42,867 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 13:40:42,867 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 13:40:42,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 13:40:42,867 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 13:40:42,868 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 13:40:42,868 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 13:40:42,868 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 13:40:42,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 13:40:42,868 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 13:40:42,869 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 13:40:42,869 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 13:40:42,869 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c2ae4f9e22cc68a37a2a30aa0a104b47e23e2c796ef551349d7d369f3cb3d78 [2022-07-12 13:40:43,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 13:40:43,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 13:40:43,188 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 13:40:43,189 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 13:40:43,190 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 13:40:43,191 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--dvb-usb--dvb-usb-opera.ko-entry_point.cil.out.i [2022-07-12 13:40:43,257 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f210c098/3569eff1481149cca4b509df7acb4ff7/FLAGa54e1ff70 [2022-07-12 13:40:43,988 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 13:40:43,989 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--dvb-usb--dvb-usb-opera.ko-entry_point.cil.out.i [2022-07-12 13:40:44,039 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f210c098/3569eff1481149cca4b509df7acb4ff7/FLAGa54e1ff70 [2022-07-12 13:40:44,090 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f210c098/3569eff1481149cca4b509df7acb4ff7 [2022-07-12 13:40:44,092 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 13:40:44,093 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 13:40:44,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 13:40:44,095 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 13:40:44,098 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 13:40:44,099 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:40:44" (1/1) ... [2022-07-12 13:40:44,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78a93ecb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:40:44, skipping insertion in model container [2022-07-12 13:40:44,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:40:44" (1/1) ... [2022-07-12 13:40:44,106 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 13:40:44,220 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 13:40:45,498 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--dvb-usb--dvb-usb-opera.ko-entry_point.cil.out.i[239090,239103] [2022-07-12 13:40:45,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:40:45,778 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 13:40:46,045 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--dvb-usb--dvb-usb-opera.ko-entry_point.cil.out.i[239090,239103] [2022-07-12 13:40:46,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:40:46,188 INFO L208 MainTranslator]: Completed translation [2022-07-12 13:40:46,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:40:46 WrapperNode [2022-07-12 13:40:46,191 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 13:40:46,192 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 13:40:46,192 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 13:40:46,192 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 13:40:46,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:40:46" (1/1) ... [2022-07-12 13:40:46,270 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:40:46" (1/1) ... [2022-07-12 13:40:46,357 INFO L137 Inliner]: procedures = 170, calls = 847, calls flagged for inlining = 47, calls inlined = 39, statements flattened = 1624 [2022-07-12 13:40:46,357 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 13:40:46,358 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 13:40:46,358 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 13:40:46,358 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 13:40:46,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:40:46" (1/1) ... [2022-07-12 13:40:46,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:40:46" (1/1) ... [2022-07-12 13:40:46,385 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:40:46" (1/1) ... [2022-07-12 13:40:46,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:40:46" (1/1) ... [2022-07-12 13:40:46,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:40:46" (1/1) ... [2022-07-12 13:40:46,495 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:40:46" (1/1) ... [2022-07-12 13:40:46,511 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:40:46" (1/1) ... [2022-07-12 13:40:46,527 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 13:40:46,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 13:40:46,531 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 13:40:46,531 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 13:40:46,532 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:40:46" (1/1) ... [2022-07-12 13:40:46,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 13:40:46,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 13:40:46,565 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 13:40:46,595 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 13:40:46,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-12 13:40:46,618 INFO L130 BoogieDeclarations]: Found specification of procedure opera1_power_ctrl [2022-07-12 13:40:46,618 INFO L138 BoogieDeclarations]: Found implementation of procedure opera1_power_ctrl [2022-07-12 13:40:46,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 13:40:46,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 13:40:46,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 13:40:46,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 13:40:46,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 13:40:46,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 13:40:46,619 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 13:40:46,619 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-12 13:40:46,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-12 13:40:46,620 INFO L130 BoogieDeclarations]: Found specification of procedure stv0299_writereg [2022-07-12 13:40:46,620 INFO L138 BoogieDeclarations]: Found implementation of procedure stv0299_writereg [2022-07-12 13:40:46,620 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 13:40:46,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 13:40:46,620 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i2c_mutex_of_dvb_usb_device [2022-07-12 13:40:46,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i2c_mutex_of_dvb_usb_device [2022-07-12 13:40:46,621 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 13:40:46,621 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 13:40:46,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 13:40:46,621 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-12 13:40:46,621 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-12 13:40:46,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 13:40:46,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 13:40:46,622 INFO L130 BoogieDeclarations]: Found specification of procedure opera1_xilinx_rw [2022-07-12 13:40:46,622 INFO L138 BoogieDeclarations]: Found implementation of procedure opera1_xilinx_rw [2022-07-12 13:40:46,622 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2022-07-12 13:40:46,622 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2022-07-12 13:40:46,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-12 13:40:46,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-12 13:40:46,623 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 13:40:46,623 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 13:40:46,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_usb_mutex_of_dvb_usb_device [2022-07-12 13:40:46,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_usb_mutex_of_dvb_usb_device [2022-07-12 13:40:46,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 13:40:46,624 INFO L130 BoogieDeclarations]: Found specification of procedure opera1_rc_query [2022-07-12 13:40:46,624 INFO L138 BoogieDeclarations]: Found implementation of procedure opera1_rc_query [2022-07-12 13:40:46,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-12 13:40:46,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-12 13:40:46,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 13:40:46,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-12 13:40:46,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-12 13:40:46,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 13:40:46,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 13:40:46,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 13:40:46,626 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-07-12 13:40:46,626 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-07-12 13:40:46,626 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2022-07-12 13:40:46,626 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2022-07-12 13:40:46,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 13:40:46,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 13:40:46,627 INFO L130 BoogieDeclarations]: Found specification of procedure opera1_i2c_xfer [2022-07-12 13:40:46,627 INFO L138 BoogieDeclarations]: Found implementation of procedure opera1_i2c_xfer [2022-07-12 13:40:46,627 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-12 13:40:46,627 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-12 13:40:46,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-07-12 13:40:46,629 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-07-12 13:40:46,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 13:40:46,629 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_guard [2022-07-12 13:40:46,630 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_guard [2022-07-12 13:40:46,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-12 13:40:46,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 13:40:46,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 13:40:47,161 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 13:40:47,163 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 13:40:47,471 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 13:40:55,473 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 13:40:55,482 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 13:40:55,483 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 13:40:55,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 01:40:55 BoogieIcfgContainer [2022-07-12 13:40:55,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 13:40:55,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 13:40:55,487 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 13:40:55,493 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 13:40:55,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 01:40:44" (1/3) ... [2022-07-12 13:40:55,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13e367c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 01:40:55, skipping insertion in model container [2022-07-12 13:40:55,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:40:46" (2/3) ... [2022-07-12 13:40:55,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13e367c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 01:40:55, skipping insertion in model container [2022-07-12 13:40:55,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 01:40:55" (3/3) ... [2022-07-12 13:40:55,496 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--dvb-usb--dvb-usb-opera.ko-entry_point.cil.out.i [2022-07-12 13:40:55,509 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 13:40:55,509 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 13:40:55,586 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 13:40:55,592 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@7887cebd, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@43faff01 [2022-07-12 13:40:55,592 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 13:40:55,599 INFO L276 IsEmpty]: Start isEmpty. Operand has 408 states, 309 states have (on average 1.4466019417475728) internal successors, (447), 325 states have internal predecessors, (447), 74 states have call successors, (74), 24 states have call predecessors, (74), 23 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2022-07-12 13:40:55,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-07-12 13:40:55,616 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:40:55,617 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:40:55,618 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:40:55,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:40:55,622 INFO L85 PathProgramCache]: Analyzing trace with hash 2105008758, now seen corresponding path program 1 times [2022-07-12 13:40:55,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:40:55,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113299252] [2022-07-12 13:40:55,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:40:55,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:40:56,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:56,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:40:56,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:56,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:56,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:56,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:56,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:56,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:40:56,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:56,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:56,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:56,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:56,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:56,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:40:56,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:56,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:56,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:56,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:56,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:56,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:40:56,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:56,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:56,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:56,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:56,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:56,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:40:56,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:56,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:56,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:56,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:56,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:56,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:40:56,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:56,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:56,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:56,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:56,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:56,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 13:40:56,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:56,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 13:40:56,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:56,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 13:40:56,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:56,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 13:40:56,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:56,727 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-07-12 13:40:56,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:40:56,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113299252] [2022-07-12 13:40:56,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113299252] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:40:56,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:40:56,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 13:40:56,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858106505] [2022-07-12 13:40:56,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:40:56,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 13:40:56,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:40:56,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 13:40:56,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 13:40:56,767 INFO L87 Difference]: Start difference. First operand has 408 states, 309 states have (on average 1.4466019417475728) internal successors, (447), 325 states have internal predecessors, (447), 74 states have call successors, (74), 24 states have call predecessors, (74), 23 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 13:40:58,809 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 13:40:59,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:40:59,831 INFO L93 Difference]: Finished difference Result 941 states and 1447 transitions. [2022-07-12 13:40:59,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 13:40:59,834 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 141 [2022-07-12 13:40:59,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:40:59,848 INFO L225 Difference]: With dead ends: 941 [2022-07-12 13:40:59,848 INFO L226 Difference]: Without dead ends: 525 [2022-07-12 13:40:59,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:40:59,859 INFO L413 NwaCegarLoop]: 568 mSDtfsCounter, 514 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 371 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 371 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-07-12 13:40:59,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [527 Valid, 954 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [371 Valid, 176 Invalid, 1 Unknown, 0 Unchecked, 2.9s Time] [2022-07-12 13:40:59,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2022-07-12 13:40:59,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 395. [2022-07-12 13:40:59,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 304 states have (on average 1.3848684210526316) internal successors, (421), 312 states have internal predecessors, (421), 68 states have call successors, (68), 23 states have call predecessors, (68), 22 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2022-07-12 13:40:59,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 548 transitions. [2022-07-12 13:40:59,923 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 548 transitions. Word has length 141 [2022-07-12 13:40:59,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:40:59,924 INFO L495 AbstractCegarLoop]: Abstraction has 395 states and 548 transitions. [2022-07-12 13:40:59,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 13:40:59,924 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 548 transitions. [2022-07-12 13:40:59,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-07-12 13:40:59,927 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:40:59,927 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:40:59,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 13:40:59,928 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:40:59,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:40:59,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1065605142, now seen corresponding path program 1 times [2022-07-12 13:40:59,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:40:59,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439846716] [2022-07-12 13:40:59,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:40:59,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:41:00,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:41:00,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:00,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:00,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:41:00,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:00,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:00,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:41:00,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:00,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:00,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:41:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:00,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:00,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:41:00,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:00,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:00,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:41:00,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:00,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:00,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 13:41:00,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 13:41:00,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 13:41:00,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 13:41:00,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,555 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-07-12 13:41:00,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:41:00,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439846716] [2022-07-12 13:41:00,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439846716] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:41:00,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:41:00,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:41:00,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698746882] [2022-07-12 13:41:00,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:41:00,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:41:00,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:41:00,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:41:00,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:41:00,559 INFO L87 Difference]: Start difference. First operand 395 states and 548 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-07-12 13:41:02,589 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:41:04,606 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:41:06,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:41:06,323 INFO L93 Difference]: Finished difference Result 1358 states and 1975 transitions. [2022-07-12 13:41:06,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 13:41:06,324 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 141 [2022-07-12 13:41:06,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:41:06,333 INFO L225 Difference]: With dead ends: 1358 [2022-07-12 13:41:06,333 INFO L226 Difference]: Without dead ends: 991 [2022-07-12 13:41:06,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-12 13:41:06,336 INFO L413 NwaCegarLoop]: 592 mSDtfsCounter, 1170 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 497 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1218 SdHoareTripleChecker+Valid, 1754 SdHoareTripleChecker+Invalid, 1048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 497 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-07-12 13:41:06,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1218 Valid, 1754 Invalid, 1048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [497 Valid, 549 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-07-12 13:41:06,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2022-07-12 13:41:06,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 729. [2022-07-12 13:41:06,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 729 states, 571 states have (on average 1.394045534150613) internal successors, (796), 579 states have internal predecessors, (796), 114 states have call successors, (114), 44 states have call predecessors, (114), 43 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2022-07-12 13:41:06,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 1015 transitions. [2022-07-12 13:41:06,404 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 1015 transitions. Word has length 141 [2022-07-12 13:41:06,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:41:06,407 INFO L495 AbstractCegarLoop]: Abstraction has 729 states and 1015 transitions. [2022-07-12 13:41:06,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-07-12 13:41:06,407 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 1015 transitions. [2022-07-12 13:41:06,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-07-12 13:41:06,410 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:41:06,411 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:41:06,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 13:41:06,411 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:41:06,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:41:06,412 INFO L85 PathProgramCache]: Analyzing trace with hash 218706579, now seen corresponding path program 1 times [2022-07-12 13:41:06,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:41:06,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988218047] [2022-07-12 13:41:06,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:41:06,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:41:06,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:41:06,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:06,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:06,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:41:06,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:06,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:06,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:41:06,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:06,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:41:06,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:06,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:06,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:41:06,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:06,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:06,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:41:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:06,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:06,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 13:41:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 13:41:06,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 13:41:06,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:07,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 13:41:07,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:07,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-12 13:41:07,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:07,034 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-07-12 13:41:07,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:41:07,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988218047] [2022-07-12 13:41:07,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988218047] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:41:07,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:41:07,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:41:07,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877167278] [2022-07-12 13:41:07,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:41:07,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:41:07,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:41:07,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:41:07,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:41:07,043 INFO L87 Difference]: Start difference. First operand 729 states and 1015 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 13:41:09,068 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:41:11,092 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:41:12,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:41:12,810 INFO L93 Difference]: Finished difference Result 2613 states and 3803 transitions. [2022-07-12 13:41:12,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 13:41:12,811 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 145 [2022-07-12 13:41:12,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:41:12,829 INFO L225 Difference]: With dead ends: 2613 [2022-07-12 13:41:12,829 INFO L226 Difference]: Without dead ends: 1912 [2022-07-12 13:41:12,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-12 13:41:12,840 INFO L413 NwaCegarLoop]: 573 mSDtfsCounter, 1257 mSDsluCounter, 1440 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 509 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1308 SdHoareTripleChecker+Valid, 2013 SdHoareTripleChecker+Invalid, 1150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 509 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-07-12 13:41:12,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1308 Valid, 2013 Invalid, 1150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [509 Valid, 639 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-07-12 13:41:12,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1912 states. [2022-07-12 13:41:12,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1912 to 1386. [2022-07-12 13:41:12,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1386 states, 1094 states have (on average 1.396709323583181) internal successors, (1528), 1103 states have internal predecessors, (1528), 206 states have call successors, (206), 86 states have call predecessors, (206), 85 states have return successors, (197), 196 states have call predecessors, (197), 197 states have call successors, (197) [2022-07-12 13:41:12,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 1931 transitions. [2022-07-12 13:41:12,930 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 1931 transitions. Word has length 145 [2022-07-12 13:41:12,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:41:12,931 INFO L495 AbstractCegarLoop]: Abstraction has 1386 states and 1931 transitions. [2022-07-12 13:41:12,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 13:41:12,932 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 1931 transitions. [2022-07-12 13:41:12,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-07-12 13:41:12,935 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:41:12,935 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:41:12,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 13:41:12,936 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:41:12,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:41:12,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1901359489, now seen corresponding path program 1 times [2022-07-12 13:41:12,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:41:12,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603345037] [2022-07-12 13:41:12,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:41:12,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:41:13,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:13,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:41:13,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:13,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:13,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:13,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:13,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:13,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:41:13,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:13,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:13,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:13,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:13,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:13,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:41:13,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:13,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:13,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:13,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:13,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:13,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:41:13,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:13,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:13,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:13,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:13,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:13,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:41:13,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:13,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:13,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:13,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:13,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:13,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:41:13,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:13,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:13,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:13,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:13,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:13,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 13:41:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:13,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 13:41:13,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:13,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 13:41:13,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:13,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 13:41:13,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:13,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-12 13:41:13,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:13,458 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-07-12 13:41:13,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:41:13,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603345037] [2022-07-12 13:41:13,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603345037] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:41:13,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:41:13,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:41:13,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085018606] [2022-07-12 13:41:13,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:41:13,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:41:13,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:41:13,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:41:13,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:41:13,462 INFO L87 Difference]: Start difference. First operand 1386 states and 1931 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 13:41:15,490 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:41:17,499 WARN L534 Checker$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 13:41:19,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:41:19,481 INFO L93 Difference]: Finished difference Result 4732 states and 6897 transitions. [2022-07-12 13:41:19,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 13:41:19,482 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 151 [2022-07-12 13:41:19,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:41:19,510 INFO L225 Difference]: With dead ends: 4732 [2022-07-12 13:41:19,510 INFO L226 Difference]: Without dead ends: 3374 [2022-07-12 13:41:19,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-12 13:41:19,520 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 1027 mSDsluCounter, 1563 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 433 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1075 SdHoareTripleChecker+Valid, 2255 SdHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 433 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-07-12 13:41:19,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1075 Valid, 2255 Invalid, 1100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [433 Valid, 665 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-07-12 13:41:19,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3374 states. [2022-07-12 13:41:19,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3374 to 2492. [2022-07-12 13:41:19,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2492 states, 1988 states have (on average 1.4064386317907445) internal successors, (2796), 1999 states have internal predecessors, (2796), 350 states have call successors, (350), 154 states have call predecessors, (350), 153 states have return successors, (341), 338 states have call predecessors, (341), 341 states have call successors, (341) [2022-07-12 13:41:19,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2492 states to 2492 states and 3487 transitions. [2022-07-12 13:41:19,653 INFO L78 Accepts]: Start accepts. Automaton has 2492 states and 3487 transitions. Word has length 151 [2022-07-12 13:41:19,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:41:19,655 INFO L495 AbstractCegarLoop]: Abstraction has 2492 states and 3487 transitions. [2022-07-12 13:41:19,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 13:41:19,655 INFO L276 IsEmpty]: Start isEmpty. Operand 2492 states and 3487 transitions. [2022-07-12 13:41:19,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-07-12 13:41:19,658 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:41:19,658 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:41:19,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 13:41:19,658 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:41:19,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:41:19,659 INFO L85 PathProgramCache]: Analyzing trace with hash 203885327, now seen corresponding path program 1 times [2022-07-12 13:41:19,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:41:19,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195290809] [2022-07-12 13:41:19,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:41:19,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:41:19,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:19,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:41:19,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:19,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:19,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:19,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:19,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:19,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:41:19,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:19,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:19,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:19,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:19,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:19,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:41:19,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:20,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:20,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:20,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:20,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:20,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:41:20,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:20,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:20,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:20,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:20,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:20,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:41:20,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:20,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:20,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:20,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:20,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:20,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:41:20,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:20,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:20,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:20,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:20,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 13:41:20,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:20,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 13:41:20,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:20,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 13:41:20,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:20,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 13:41:20,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:20,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-12 13:41:20,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:20,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:20,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:20,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:20,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:20,248 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2022-07-12 13:41:20,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:41:20,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195290809] [2022-07-12 13:41:20,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195290809] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:41:20,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:41:20,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:41:20,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663503184] [2022-07-12 13:41:20,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:41:20,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:41:20,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:41:20,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:41:20,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:41:20,251 INFO L87 Difference]: Start difference. First operand 2492 states and 3487 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 13:41:22,281 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:41:24,295 WARN L534 Checker$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 13:41:26,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:41:26,199 INFO L93 Difference]: Finished difference Result 9026 states and 13340 transitions. [2022-07-12 13:41:26,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 13:41:26,200 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 161 [2022-07-12 13:41:26,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:41:26,243 INFO L225 Difference]: With dead ends: 9026 [2022-07-12 13:41:26,243 INFO L226 Difference]: Without dead ends: 6562 [2022-07-12 13:41:26,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-12 13:41:26,257 INFO L413 NwaCegarLoop]: 657 mSDtfsCounter, 1155 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 500 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1197 SdHoareTripleChecker+Valid, 1830 SdHoareTripleChecker+Invalid, 1017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 500 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-07-12 13:41:26,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1197 Valid, 1830 Invalid, 1017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [500 Valid, 515 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-07-12 13:41:26,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6562 states. [2022-07-12 13:41:26,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6562 to 4873. [2022-07-12 13:41:26,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4873 states, 3909 states have (on average 1.40752110514198) internal successors, (5502), 3923 states have internal predecessors, (5502), 664 states have call successors, (664), 301 states have call predecessors, (664), 299 states have return successors, (710), 648 states have call predecessors, (710), 654 states have call successors, (710) [2022-07-12 13:41:26,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4873 states to 4873 states and 6876 transitions. [2022-07-12 13:41:26,498 INFO L78 Accepts]: Start accepts. Automaton has 4873 states and 6876 transitions. Word has length 161 [2022-07-12 13:41:26,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:41:26,498 INFO L495 AbstractCegarLoop]: Abstraction has 4873 states and 6876 transitions. [2022-07-12 13:41:26,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 13:41:26,499 INFO L276 IsEmpty]: Start isEmpty. Operand 4873 states and 6876 transitions. [2022-07-12 13:41:26,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-07-12 13:41:26,501 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:41:26,502 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:41:26,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 13:41:26,502 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:41:26,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:41:26,503 INFO L85 PathProgramCache]: Analyzing trace with hash 2025420413, now seen corresponding path program 1 times [2022-07-12 13:41:26,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:41:26,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483336052] [2022-07-12 13:41:26,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:41:26,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:41:26,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:26,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:41:26,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:26,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:26,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:26,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:26,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:26,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:41:26,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:26,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:26,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:26,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:26,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:26,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:41:26,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:26,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:26,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:26,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:26,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:41:26,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:26,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:26,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:26,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:26,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:26,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:41:26,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:26,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:26,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:26,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:26,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:26,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:41:26,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:26,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:26,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:26,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:26,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:26,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 13:41:26,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:27,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 13:41:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:27,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 13:41:27,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:27,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 13:41:27,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:27,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-12 13:41:27,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:27,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:27,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:27,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:27,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:27,107 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2022-07-12 13:41:27,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:41:27,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483336052] [2022-07-12 13:41:27,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483336052] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:41:27,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:41:27,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:41:27,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895021927] [2022-07-12 13:41:27,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:41:27,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:41:27,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:41:27,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:41:27,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:41:27,110 INFO L87 Difference]: Start difference. First operand 4873 states and 6876 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 13:41:29,134 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:41:31,155 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:41:33,187 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 13:41:34,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:41:34,446 INFO L93 Difference]: Finished difference Result 6517 states and 9759 transitions. [2022-07-12 13:41:34,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 13:41:34,447 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 162 [2022-07-12 13:41:34,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:41:34,492 INFO L225 Difference]: With dead ends: 6517 [2022-07-12 13:41:34,492 INFO L226 Difference]: Without dead ends: 6514 [2022-07-12 13:41:34,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-12 13:41:34,499 INFO L413 NwaCegarLoop]: 524 mSDtfsCounter, 925 mSDsluCounter, 939 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 317 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 958 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 317 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-07-12 13:41:34,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [958 Valid, 1463 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [317 Valid, 348 Invalid, 3 Unknown, 0 Unchecked, 7.1s Time] [2022-07-12 13:41:34,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6514 states. [2022-07-12 13:41:34,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6514 to 4872. [2022-07-12 13:41:34,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4872 states, 3909 states have (on average 1.4072652852391916) internal successors, (5501), 3922 states have internal predecessors, (5501), 663 states have call successors, (663), 301 states have call predecessors, (663), 299 states have return successors, (710), 648 states have call predecessors, (710), 654 states have call successors, (710) [2022-07-12 13:41:34,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4872 states to 4872 states and 6874 transitions. [2022-07-12 13:41:34,736 INFO L78 Accepts]: Start accepts. Automaton has 4872 states and 6874 transitions. Word has length 162 [2022-07-12 13:41:34,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:41:34,736 INFO L495 AbstractCegarLoop]: Abstraction has 4872 states and 6874 transitions. [2022-07-12 13:41:34,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 13:41:34,737 INFO L276 IsEmpty]: Start isEmpty. Operand 4872 states and 6874 transitions. [2022-07-12 13:41:34,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-12 13:41:34,738 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:41:34,739 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:41:34,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 13:41:34,739 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:41:34,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:41:34,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1636529198, now seen corresponding path program 1 times [2022-07-12 13:41:34,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:41:34,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216151100] [2022-07-12 13:41:34,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:41:34,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:41:34,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:34,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:41:34,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:35,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:35,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:35,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:35,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:35,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:41:35,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:35,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:35,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:35,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:35,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:35,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:41:35,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:35,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:35,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:35,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:35,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:35,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:41:35,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:35,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:35,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:35,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:35,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:35,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:41:35,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:35,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:35,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:35,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:35,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:35,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:41:35,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:35,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:35,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:35,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:35,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:35,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 13:41:35,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:35,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 13:41:35,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:35,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 13:41:35,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:35,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 13:41:35,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:35,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-12 13:41:35,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:35,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:35,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:35,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:35,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:35,295 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2022-07-12 13:41:35,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:41:35,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216151100] [2022-07-12 13:41:35,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216151100] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:41:35,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:41:35,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:41:35,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443494201] [2022-07-12 13:41:35,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:41:35,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:41:35,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:41:35,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:41:35,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:41:35,298 INFO L87 Difference]: Start difference. First operand 4872 states and 6874 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 13:41:37,323 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:41:39,334 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 13:41:40,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:41:40,402 INFO L93 Difference]: Finished difference Result 6516 states and 9757 transitions. [2022-07-12 13:41:40,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 13:41:40,403 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 163 [2022-07-12 13:41:40,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:41:40,443 INFO L225 Difference]: With dead ends: 6516 [2022-07-12 13:41:40,443 INFO L226 Difference]: Without dead ends: 6513 [2022-07-12 13:41:40,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-12 13:41:40,451 INFO L413 NwaCegarLoop]: 515 mSDtfsCounter, 993 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 355 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1029 SdHoareTripleChecker+Valid, 1145 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 355 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-07-12 13:41:40,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1029 Valid, 1145 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [355 Valid, 251 Invalid, 2 Unknown, 0 Unchecked, 4.8s Time] [2022-07-12 13:41:40,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6513 states. [2022-07-12 13:41:40,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6513 to 4871. [2022-07-12 13:41:40,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4871 states, 3909 states have (on average 1.4070094653364031) internal successors, (5500), 3921 states have internal predecessors, (5500), 662 states have call successors, (662), 301 states have call predecessors, (662), 299 states have return successors, (710), 648 states have call predecessors, (710), 654 states have call successors, (710) [2022-07-12 13:41:40,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4871 states to 4871 states and 6872 transitions. [2022-07-12 13:41:40,766 INFO L78 Accepts]: Start accepts. Automaton has 4871 states and 6872 transitions. Word has length 163 [2022-07-12 13:41:40,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:41:40,769 INFO L495 AbstractCegarLoop]: Abstraction has 4871 states and 6872 transitions. [2022-07-12 13:41:40,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 13:41:40,771 INFO L276 IsEmpty]: Start isEmpty. Operand 4871 states and 6872 transitions. [2022-07-12 13:41:40,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-07-12 13:41:40,773 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:41:40,773 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:41:40,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 13:41:40,774 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:41:40,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:41:40,774 INFO L85 PathProgramCache]: Analyzing trace with hash 807154720, now seen corresponding path program 1 times [2022-07-12 13:41:40,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:41:40,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014384574] [2022-07-12 13:41:40,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:41:40,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:41:40,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:41,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:41:41,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:41,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:41,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:41,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:41,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:41,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:41:41,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:41,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:41,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:41,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:41,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:41,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:41:41,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:41,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:41,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:41,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:41,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:41,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:41:41,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:41,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:41,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:41,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:41,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:41,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:41:41,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:41,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:41,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:41,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:41,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:41,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:41:41,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:41,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:41,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:41,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:41,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:41,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 13:41:41,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:41,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 13:41:41,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:41,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 13:41:41,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:41,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 13:41:41,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:41,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-12 13:41:41,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:41,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:41,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:41,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:41,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:41,343 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2022-07-12 13:41:41,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:41:41,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014384574] [2022-07-12 13:41:41,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014384574] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:41:41,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:41:41,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:41:41,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753349289] [2022-07-12 13:41:41,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:41:41,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:41:41,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:41:41,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:41:41,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:41:41,346 INFO L87 Difference]: Start difference. First operand 4871 states and 6872 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 13:41:43,372 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 13:41:44,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:41:44,440 INFO L93 Difference]: Finished difference Result 6515 states and 9755 transitions. [2022-07-12 13:41:44,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 13:41:44,441 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 164 [2022-07-12 13:41:44,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:41:44,480 INFO L225 Difference]: With dead ends: 6515 [2022-07-12 13:41:44,480 INFO L226 Difference]: Without dead ends: 6512 [2022-07-12 13:41:44,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-12 13:41:44,485 INFO L413 NwaCegarLoop]: 518 mSDtfsCounter, 923 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 321 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 958 SdHoareTripleChecker+Valid, 1196 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 321 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-07-12 13:41:44,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [958 Valid, 1196 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [321 Valid, 256 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2022-07-12 13:41:44,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6512 states. [2022-07-12 13:41:44,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6512 to 4870. [2022-07-12 13:41:44,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4870 states, 3909 states have (on average 1.4067536454336147) internal successors, (5499), 3920 states have internal predecessors, (5499), 661 states have call successors, (661), 301 states have call predecessors, (661), 299 states have return successors, (710), 648 states have call predecessors, (710), 654 states have call successors, (710) [2022-07-12 13:41:44,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4870 states to 4870 states and 6870 transitions. [2022-07-12 13:41:44,743 INFO L78 Accepts]: Start accepts. Automaton has 4870 states and 6870 transitions. Word has length 164 [2022-07-12 13:41:44,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:41:44,743 INFO L495 AbstractCegarLoop]: Abstraction has 4870 states and 6870 transitions. [2022-07-12 13:41:44,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 13:41:44,744 INFO L276 IsEmpty]: Start isEmpty. Operand 4870 states and 6870 transitions. [2022-07-12 13:41:44,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-07-12 13:41:44,745 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:41:44,745 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:41:44,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 13:41:44,746 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:41:44,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:41:44,746 INFO L85 PathProgramCache]: Analyzing trace with hash -748050283, now seen corresponding path program 1 times [2022-07-12 13:41:44,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:41:44,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370551170] [2022-07-12 13:41:44,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:41:44,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:41:44,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:45,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:41:45,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:45,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:45,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:45,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:45,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:45,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:41:45,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:45,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:45,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:45,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:45,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:45,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:41:45,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:45,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:45,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:45,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:45,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:45,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:41:45,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:45,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:45,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:45,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:45,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:45,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:41:45,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:45,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:45,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:45,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:45,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:45,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:41:45,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:45,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:45,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:45,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:45,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:45,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 13:41:45,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:45,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 13:41:45,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:45,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 13:41:45,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:45,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 13:41:45,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:45,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-12 13:41:45,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:45,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:45,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:45,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:45,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:45,360 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2022-07-12 13:41:45,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:41:45,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370551170] [2022-07-12 13:41:45,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370551170] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:41:45,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:41:45,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:41:45,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108877084] [2022-07-12 13:41:45,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:41:45,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:41:45,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:41:45,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:41:45,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:41:45,363 INFO L87 Difference]: Start difference. First operand 4870 states and 6870 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 13:41:47,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:41:49,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:41:49,152 INFO L93 Difference]: Finished difference Result 17578 states and 26238 transitions. [2022-07-12 13:41:49,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 13:41:49,152 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 165 [2022-07-12 13:41:49,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:41:49,212 INFO L225 Difference]: With dead ends: 17578 [2022-07-12 13:41:49,212 INFO L226 Difference]: Without dead ends: 12727 [2022-07-12 13:41:49,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-12 13:41:49,240 INFO L413 NwaCegarLoop]: 586 mSDtfsCounter, 1289 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 553 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1329 SdHoareTripleChecker+Valid, 1694 SdHoareTripleChecker+Invalid, 1037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 553 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-07-12 13:41:49,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1329 Valid, 1694 Invalid, 1037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [553 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-07-12 13:41:49,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12727 states. [2022-07-12 13:41:49,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12727 to 9515. [2022-07-12 13:41:49,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9515 states, 7671 states have (on average 1.4084213270760004) internal successors, (10804), 7699 states have internal predecessors, (10804), 1270 states have call successors, (1270), 576 states have call predecessors, (1270), 573 states have return successors, (1486), 1239 states have call predecessors, (1486), 1262 states have call successors, (1486) [2022-07-12 13:41:49,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9515 states to 9515 states and 13560 transitions. [2022-07-12 13:41:49,718 INFO L78 Accepts]: Start accepts. Automaton has 9515 states and 13560 transitions. Word has length 165 [2022-07-12 13:41:49,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:41:49,718 INFO L495 AbstractCegarLoop]: Abstraction has 9515 states and 13560 transitions. [2022-07-12 13:41:49,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 13:41:49,719 INFO L276 IsEmpty]: Start isEmpty. Operand 9515 states and 13560 transitions. [2022-07-12 13:41:49,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-07-12 13:41:49,724 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:41:49,724 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:41:49,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 13:41:49,725 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:41:49,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:41:49,725 INFO L85 PathProgramCache]: Analyzing trace with hash -865072445, now seen corresponding path program 1 times [2022-07-12 13:41:49,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:41:49,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483918921] [2022-07-12 13:41:49,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:41:49,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:41:49,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:49,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:41:49,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:49,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:49,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:50,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:50,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:50,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:41:50,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:50,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:50,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:50,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:50,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:50,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:41:50,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:50,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:50,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:50,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:50,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:50,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:41:50,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:50,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:50,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:50,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:50,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:50,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:41:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:50,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:50,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:50,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:50,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:50,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:41:50,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:50,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:50,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:50,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:50,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:50,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 13:41:50,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:50,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 13:41:50,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:50,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 13:41:50,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:50,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 13:41:50,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:50,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-12 13:41:50,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:50,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:50,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:50,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:50,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:50,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-12 13:41:50,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:50,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:50,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:50,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:50,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:50,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 13:41:50,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:50,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:50,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:50,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:50,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:50,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-07-12 13:41:50,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:50,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-07-12 13:41:50,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:50,375 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2022-07-12 13:41:50,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:41:50,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483918921] [2022-07-12 13:41:50,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483918921] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:41:50,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:41:50,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:41:50,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226031478] [2022-07-12 13:41:50,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:41:50,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:41:50,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:41:50,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:41:50,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:41:50,378 INFO L87 Difference]: Start difference. First operand 9515 states and 13560 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-12 13:41:52,404 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 13:41:54,420 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 13:41:56,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:41:56,420 INFO L93 Difference]: Finished difference Result 22126 states and 32617 transitions. [2022-07-12 13:41:56,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 13:41:56,421 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 223 [2022-07-12 13:41:56,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:41:56,488 INFO L225 Difference]: With dead ends: 22126 [2022-07-12 13:41:56,488 INFO L226 Difference]: Without dead ends: 12639 [2022-07-12 13:41:56,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-12 13:41:56,535 INFO L413 NwaCegarLoop]: 912 mSDtfsCounter, 1323 mSDsluCounter, 1076 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 581 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1363 SdHoareTripleChecker+Valid, 1988 SdHoareTripleChecker+Invalid, 1024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 581 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-07-12 13:41:56,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1363 Valid, 1988 Invalid, 1024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [581 Valid, 441 Invalid, 2 Unknown, 0 Unchecked, 5.3s Time] [2022-07-12 13:41:56,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12639 states. [2022-07-12 13:41:57,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12639 to 9488. [2022-07-12 13:41:57,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9488 states, 7644 states have (on average 1.4065934065934067) internal successors, (10752), 7683 states have internal predecessors, (10752), 1270 states have call successors, (1270), 576 states have call predecessors, (1270), 573 states have return successors, (1374), 1228 states have call predecessors, (1374), 1262 states have call successors, (1374) [2022-07-12 13:41:57,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9488 states to 9488 states and 13396 transitions. [2022-07-12 13:41:57,098 INFO L78 Accepts]: Start accepts. Automaton has 9488 states and 13396 transitions. Word has length 223 [2022-07-12 13:41:57,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:41:57,099 INFO L495 AbstractCegarLoop]: Abstraction has 9488 states and 13396 transitions. [2022-07-12 13:41:57,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-12 13:41:57,099 INFO L276 IsEmpty]: Start isEmpty. Operand 9488 states and 13396 transitions. [2022-07-12 13:41:57,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-07-12 13:41:57,104 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:41:57,105 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 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] [2022-07-12 13:41:57,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 13:41:57,105 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:41:57,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:41:57,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1515476723, now seen corresponding path program 1 times [2022-07-12 13:41:57,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:41:57,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175804797] [2022-07-12 13:41:57,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:41:57,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:41:57,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:57,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:41:57,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:57,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:57,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:57,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:57,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:57,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:41:57,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:57,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:57,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:57,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:57,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:57,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:41:57,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:57,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:57,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:57,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:57,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:57,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:41:57,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:57,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:57,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:57,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:57,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:57,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:41:57,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:57,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:57,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:57,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:57,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:57,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:41:57,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:57,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:57,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:57,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:57,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:57,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 13:41:57,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:57,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 13:41:57,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:57,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 13:41:57,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:57,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 13:41:57,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:57,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-12 13:41:57,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:57,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:57,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:57,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:57,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:57,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-12 13:41:57,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:57,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:57,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:57,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:57,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:57,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 13:41:57,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:57,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:57,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:57,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:57,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-07-12 13:41:57,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:57,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-12 13:41:57,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:57,751 INFO L134 CoverageAnalysis]: Checked inductivity of 538 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2022-07-12 13:41:57,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:41:57,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175804797] [2022-07-12 13:41:57,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175804797] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:41:57,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:41:57,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 13:41:57,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980378195] [2022-07-12 13:41:57,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:41:57,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 13:41:57,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:41:57,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 13:41:57,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-07-12 13:41:57,758 INFO L87 Difference]: Start difference. First operand 9488 states and 13396 transitions. Second operand has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 4 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-12 13:41:59,796 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 13:42:02,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:42:02,073 INFO L93 Difference]: Finished difference Result 23545 states and 34671 transitions. [2022-07-12 13:42:02,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-12 13:42:02,074 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 4 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 229 [2022-07-12 13:42:02,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:42:02,156 INFO L225 Difference]: With dead ends: 23545 [2022-07-12 13:42:02,156 INFO L226 Difference]: Without dead ends: 14085 [2022-07-12 13:42:02,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2022-07-12 13:42:02,198 INFO L413 NwaCegarLoop]: 593 mSDtfsCounter, 992 mSDsluCounter, 1907 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 531 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 2500 SdHoareTripleChecker+Invalid, 1239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 531 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-07-12 13:42:02,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1010 Valid, 2500 Invalid, 1239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [531 Valid, 707 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-07-12 13:42:02,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14085 states. [2022-07-12 13:42:02,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14085 to 9748. [2022-07-12 13:42:02,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9748 states, 7852 states have (on average 1.402954661232807) internal successors, (11016), 7907 states have internal predecessors, (11016), 1298 states have call successors, (1298), 584 states have call predecessors, (1298), 597 states have return successors, (1482), 1256 states have call predecessors, (1482), 1290 states have call successors, (1482) [2022-07-12 13:42:02,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9748 states to 9748 states and 13796 transitions. [2022-07-12 13:42:02,802 INFO L78 Accepts]: Start accepts. Automaton has 9748 states and 13796 transitions. Word has length 229 [2022-07-12 13:42:02,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:42:02,802 INFO L495 AbstractCegarLoop]: Abstraction has 9748 states and 13796 transitions. [2022-07-12 13:42:02,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 4 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-12 13:42:02,803 INFO L276 IsEmpty]: Start isEmpty. Operand 9748 states and 13796 transitions. [2022-07-12 13:42:02,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-07-12 13:42:02,808 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:42:02,808 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:42:02,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 13:42:02,809 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:42:02,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:42:02,809 INFO L85 PathProgramCache]: Analyzing trace with hash -164007867, now seen corresponding path program 1 times [2022-07-12 13:42:02,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:42:02,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180717510] [2022-07-12 13:42:02,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:42:02,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:42:02,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:03,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:42:03,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:03,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:03,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:03,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:03,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:42:03,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:03,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:03,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:03,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:03,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:03,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:42:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:03,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:03,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:03,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:03,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:03,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:42:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:03,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:03,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:03,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:03,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:03,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:42:03,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:03,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:03,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:03,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:03,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:03,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:42:03,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:03,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:03,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:03,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:03,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:03,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 13:42:03,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:03,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 13:42:03,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:03,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 13:42:03,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:03,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 13:42:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:03,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-12 13:42:03,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:03,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:03,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:03,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:03,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:03,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-12 13:42:03,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:03,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:03,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:03,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:03,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:03,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 13:42:03,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:03,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:03,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:03,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:03,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:03,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-07-12 13:42:03,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:03,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-07-12 13:42:03,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:03,528 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2022-07-12 13:42:03,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:42:03,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180717510] [2022-07-12 13:42:03,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180717510] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:42:03,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:42:03,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 13:42:03,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645762948] [2022-07-12 13:42:03,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:42:03,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 13:42:03,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:42:03,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 13:42:03,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-12 13:42:03,532 INFO L87 Difference]: Start difference. First operand 9748 states and 13796 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-12 13:42:05,560 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:42:07,576 WARN L534 Checker$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 13:42:09,587 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 13:42:11,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:42:11,526 INFO L93 Difference]: Finished difference Result 13494 states and 19761 transitions. [2022-07-12 13:42:11,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 13:42:11,527 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 223 [2022-07-12 13:42:11,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:42:11,591 INFO L225 Difference]: With dead ends: 13494 [2022-07-12 13:42:11,591 INFO L226 Difference]: Without dead ends: 12141 [2022-07-12 13:42:11,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-07-12 13:42:11,609 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 332 mSDsluCounter, 2340 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 203 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 2885 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-07-12 13:42:11,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 2885 Invalid, 977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [203 Valid, 771 Invalid, 3 Unknown, 0 Unchecked, 7.4s Time] [2022-07-12 13:42:11,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12141 states. [2022-07-12 13:42:12,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12141 to 9431. [2022-07-12 13:42:12,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9431 states, 7569 states have (on average 1.396089311666006) internal successors, (10567), 7633 states have internal predecessors, (10567), 1254 states have call successors, (1254), 577 states have call predecessors, (1254), 607 states have return successors, (1456), 1220 states have call predecessors, (1456), 1248 states have call successors, (1456) [2022-07-12 13:42:12,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9431 states to 9431 states and 13277 transitions. [2022-07-12 13:42:12,163 INFO L78 Accepts]: Start accepts. Automaton has 9431 states and 13277 transitions. Word has length 223 [2022-07-12 13:42:12,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:42:12,164 INFO L495 AbstractCegarLoop]: Abstraction has 9431 states and 13277 transitions. [2022-07-12 13:42:12,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-12 13:42:12,165 INFO L276 IsEmpty]: Start isEmpty. Operand 9431 states and 13277 transitions. [2022-07-12 13:42:12,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-07-12 13:42:12,172 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:42:12,172 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:42:12,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 13:42:12,172 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:42:12,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:42:12,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1819250572, now seen corresponding path program 1 times [2022-07-12 13:42:12,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:42:12,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174211747] [2022-07-12 13:42:12,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:42:12,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:42:12,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:12,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:42:12,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:12,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:12,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:12,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:12,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:12,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:42:12,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:12,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:12,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:12,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:12,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:12,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:42:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:12,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:12,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:12,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:12,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:12,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:42:12,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:12,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:12,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:12,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:12,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:12,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:42:12,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:12,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:12,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:12,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:12,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:12,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:42:12,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:12,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:12,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:12,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:12,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 13:42:12,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:12,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 13:42:12,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:12,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 13:42:12,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:12,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 13:42:12,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:12,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-12 13:42:12,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:12,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:12,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:12,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:12,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:12,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-12 13:42:12,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:12,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:12,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:12,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:12,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:12,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 13:42:12,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:12,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:12,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:12,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:12,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:12,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-12 13:42:12,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:12,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 13:42:12,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:12,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 13:42:12,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:12,766 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2022-07-12 13:42:12,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:42:12,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174211747] [2022-07-12 13:42:12,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174211747] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:42:12,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:42:12,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 13:42:12,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700490937] [2022-07-12 13:42:12,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:42:12,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 13:42:12,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:42:12,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 13:42:12,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-07-12 13:42:12,769 INFO L87 Difference]: Start difference. First operand 9431 states and 13277 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2022-07-12 13:42:14,794 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:42:16,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:42:16,968 INFO L93 Difference]: Finished difference Result 13703 states and 20074 transitions. [2022-07-12 13:42:16,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 13:42:16,969 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) Word has length 233 [2022-07-12 13:42:16,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:42:17,016 INFO L225 Difference]: With dead ends: 13703 [2022-07-12 13:42:17,016 INFO L226 Difference]: Without dead ends: 9440 [2022-07-12 13:42:17,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2022-07-12 13:42:17,036 INFO L413 NwaCegarLoop]: 557 mSDtfsCounter, 923 mSDsluCounter, 1585 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 438 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 2142 SdHoareTripleChecker+Invalid, 1238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 438 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-07-12 13:42:17,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [939 Valid, 2142 Invalid, 1238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [438 Valid, 799 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-07-12 13:42:17,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9440 states. [2022-07-12 13:42:17,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9440 to 5700. [2022-07-12 13:42:17,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5700 states, 4520 states have (on average 1.3679203539823008) internal successors, (6183), 4552 states have internal predecessors, (6183), 765 states have call successors, (765), 392 states have call predecessors, (765), 414 states have return successors, (873), 755 states have call predecessors, (873), 761 states have call successors, (873) [2022-07-12 13:42:17,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5700 states to 5700 states and 7821 transitions. [2022-07-12 13:42:17,478 INFO L78 Accepts]: Start accepts. Automaton has 5700 states and 7821 transitions. Word has length 233 [2022-07-12 13:42:17,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:42:17,478 INFO L495 AbstractCegarLoop]: Abstraction has 5700 states and 7821 transitions. [2022-07-12 13:42:17,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2022-07-12 13:42:17,479 INFO L276 IsEmpty]: Start isEmpty. Operand 5700 states and 7821 transitions. [2022-07-12 13:42:17,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-07-12 13:42:17,488 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:42:17,488 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:42:17,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-12 13:42:17,488 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:42:17,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:42:17,489 INFO L85 PathProgramCache]: Analyzing trace with hash -31723647, now seen corresponding path program 1 times [2022-07-12 13:42:17,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:42:17,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487872850] [2022-07-12 13:42:17,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:42:17,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:42:17,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:17,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:42:17,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:17,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:17,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:17,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:17,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:17,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:42:17,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:17,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:17,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:17,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:17,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:17,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:42:17,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:17,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:17,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:17,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:17,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:17,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:42:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:17,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:17,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:17,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:17,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:17,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:42:17,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:17,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:17,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:17,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:17,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:17,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:42:17,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:17,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:17,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:17,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:17,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:17,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 13:42:17,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:17,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 13:42:17,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:17,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 13:42:17,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:17,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 13:42:17,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:18,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-12 13:42:18,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:18,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:18,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:18,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:18,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:18,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-12 13:42:18,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:18,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:18,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:18,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:18,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:18,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 13:42:18,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:18,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:18,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:18,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:18,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:18,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-07-12 13:42:18,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:18,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-07-12 13:42:18,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:18,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 13:42:18,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:18,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-12 13:42:18,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:18,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-07-12 13:42:18,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:18,164 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2022-07-12 13:42:18,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:42:18,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487872850] [2022-07-12 13:42:18,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487872850] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:42:18,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:42:18,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 13:42:18,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462810491] [2022-07-12 13:42:18,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:42:18,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 13:42:18,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:42:18,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 13:42:18,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-12 13:42:18,167 INFO L87 Difference]: Start difference. First operand 5700 states and 7821 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-12 13:42:20,192 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:42:22,204 WARN L534 Checker$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 13:42:24,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:42:24,060 INFO L93 Difference]: Finished difference Result 11021 states and 15542 transitions. [2022-07-12 13:42:24,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 13:42:24,061 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 249 [2022-07-12 13:42:24,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:42:24,085 INFO L225 Difference]: With dead ends: 11021 [2022-07-12 13:42:24,086 INFO L226 Difference]: Without dead ends: 5349 [2022-07-12 13:42:24,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2022-07-12 13:42:24,104 INFO L413 NwaCegarLoop]: 524 mSDtfsCounter, 866 mSDsluCounter, 1907 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 364 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 878 SdHoareTripleChecker+Valid, 2431 SdHoareTripleChecker+Invalid, 1057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-07-12 13:42:24,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [878 Valid, 2431 Invalid, 1057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [364 Valid, 691 Invalid, 2 Unknown, 0 Unchecked, 5.2s Time] [2022-07-12 13:42:24,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5349 states. [2022-07-12 13:42:24,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5349 to 3229. [2022-07-12 13:42:24,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3229 states, 2546 states have (on average 1.3574234092694422) internal successors, (3456), 2549 states have internal predecessors, (3456), 446 states have call successors, (446), 238 states have call predecessors, (446), 236 states have return successors, (444), 441 states have call predecessors, (444), 444 states have call successors, (444) [2022-07-12 13:42:24,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3229 states to 3229 states and 4346 transitions. [2022-07-12 13:42:24,385 INFO L78 Accepts]: Start accepts. Automaton has 3229 states and 4346 transitions. Word has length 249 [2022-07-12 13:42:24,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:42:24,385 INFO L495 AbstractCegarLoop]: Abstraction has 3229 states and 4346 transitions. [2022-07-12 13:42:24,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-12 13:42:24,386 INFO L276 IsEmpty]: Start isEmpty. Operand 3229 states and 4346 transitions. [2022-07-12 13:42:24,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-07-12 13:42:24,398 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:42:24,398 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:42:24,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-12 13:42:24,399 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:42:24,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:42:24,399 INFO L85 PathProgramCache]: Analyzing trace with hash 994423618, now seen corresponding path program 1 times [2022-07-12 13:42:24,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:42:24,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801479700] [2022-07-12 13:42:24,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:42:24,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:42:24,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:42:24,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:24,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:24,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:42:24,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:24,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:24,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:42:24,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:24,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:24,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:42:24,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:24,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:24,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:42:24,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:24,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:24,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:42:24,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:24,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 13:42:24,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 13:42:24,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 13:42:24,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 13:42:24,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-12 13:42:24,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:24,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:24,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-12 13:42:24,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:24,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:24,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 13:42:24,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:24,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:24,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-07-12 13:42:24,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-07-12 13:42:24,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 13:42:24,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-12 13:42:24,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:25,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-12 13:42:25,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:25,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:42:25,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:25,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 13:42:25,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:25,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:25,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:25,122 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 542 trivial. 0 not checked. [2022-07-12 13:42:25,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:42:25,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801479700] [2022-07-12 13:42:25,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801479700] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:42:25,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:42:25,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 13:42:25,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707600788] [2022-07-12 13:42:25,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:42:25,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 13:42:25,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:42:25,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 13:42:25,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-07-12 13:42:25,125 INFO L87 Difference]: Start difference. First operand 3229 states and 4346 transitions. Second operand has 10 states, 9 states have (on average 11.444444444444445) internal successors, (103), 5 states have internal predecessors, (103), 4 states have call successors, (26), 7 states have call predecessors, (26), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-12 13:42:27,150 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:42:29,169 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:42:31,180 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 13:42:33,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:42:33,418 INFO L93 Difference]: Finished difference Result 9912 states and 14965 transitions. [2022-07-12 13:42:33,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-12 13:42:33,419 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.444444444444445) internal successors, (103), 5 states have internal predecessors, (103), 4 states have call successors, (26), 7 states have call predecessors, (26), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 273 [2022-07-12 13:42:33,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:42:33,461 INFO L225 Difference]: With dead ends: 9912 [2022-07-12 13:42:33,461 INFO L226 Difference]: Without dead ends: 6711 [2022-07-12 13:42:33,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2022-07-12 13:42:33,484 INFO L413 NwaCegarLoop]: 492 mSDtfsCounter, 918 mSDsluCounter, 2014 mSDsCounter, 0 mSdLazyCounter, 1107 mSolverCounterSat, 469 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 2506 SdHoareTripleChecker+Invalid, 1579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 469 IncrementalHoareTripleChecker+Valid, 1107 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-07-12 13:42:33,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [937 Valid, 2506 Invalid, 1579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [469 Valid, 1107 Invalid, 3 Unknown, 0 Unchecked, 7.5s Time] [2022-07-12 13:42:33,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6711 states. [2022-07-12 13:42:33,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6711 to 3569. [2022-07-12 13:42:33,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3569 states, 2787 states have (on average 1.353426623609616) internal successors, (3772), 2806 states have internal predecessors, (3772), 530 states have call successors, (530), 246 states have call predecessors, (530), 251 states have return successors, (537), 516 states have call predecessors, (537), 528 states have call successors, (537) [2022-07-12 13:42:33,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3569 states to 3569 states and 4839 transitions. [2022-07-12 13:42:33,859 INFO L78 Accepts]: Start accepts. Automaton has 3569 states and 4839 transitions. Word has length 273 [2022-07-12 13:42:33,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:42:33,860 INFO L495 AbstractCegarLoop]: Abstraction has 3569 states and 4839 transitions. [2022-07-12 13:42:33,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.444444444444445) internal successors, (103), 5 states have internal predecessors, (103), 4 states have call successors, (26), 7 states have call predecessors, (26), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-12 13:42:33,860 INFO L276 IsEmpty]: Start isEmpty. Operand 3569 states and 4839 transitions. [2022-07-12 13:42:33,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-07-12 13:42:33,899 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:42:33,899 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:42:33,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-12 13:42:33,900 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:42:33,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:42:33,901 INFO L85 PathProgramCache]: Analyzing trace with hash -213836846, now seen corresponding path program 1 times [2022-07-12 13:42:33,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:42:33,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186842177] [2022-07-12 13:42:33,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:42:33,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:42:34,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:42:34,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:34,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:34,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:42:34,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:34,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:34,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:42:34,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:34,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:34,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:42:34,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:34,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:34,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:42:34,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:34,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:34,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:42:34,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:34,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:34,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 13:42:34,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 13:42:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 13:42:34,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 13:42:34,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-12 13:42:34,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:34,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:34,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-12 13:42:34,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:34,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:34,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 13:42:34,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:34,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:34,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-07-12 13:42:34,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-12 13:42:34,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-12 13:42:34,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-12 13:42:34,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-12 13:42:34,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:42:34,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 13:42:34,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:34,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,562 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2022-07-12 13:42:34,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:42:34,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186842177] [2022-07-12 13:42:34,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186842177] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 13:42:34,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415979765] [2022-07-12 13:42:34,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:42:34,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 13:42:34,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 13:42:34,567 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 13:42:34,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-12 13:42:35,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:35,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 3119 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 13:42:35,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:42:35,692 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2022-07-12 13:42:35,692 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:42:35,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415979765] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:42:35,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 13:42:35,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2022-07-12 13:42:35,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818597776] [2022-07-12 13:42:35,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:42:35,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 13:42:35,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:42:35,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 13:42:35,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-07-12 13:42:35,695 INFO L87 Difference]: Start difference. First operand 3569 states and 4839 transitions. Second operand has 5 states, 4 states have (on average 26.5) internal successors, (106), 5 states have internal predecessors, (106), 4 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-12 13:42:36,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:42:36,167 INFO L93 Difference]: Finished difference Result 7513 states and 10261 transitions. [2022-07-12 13:42:36,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 13:42:36,183 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 26.5) internal successors, (106), 5 states have internal predecessors, (106), 4 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 279 [2022-07-12 13:42:36,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:42:36,198 INFO L225 Difference]: With dead ends: 7513 [2022-07-12 13:42:36,198 INFO L226 Difference]: Without dead ends: 3578 [2022-07-12 13:42:36,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-07-12 13:42:36,237 INFO L413 NwaCegarLoop]: 547 mSDtfsCounter, 76 mSDsluCounter, 1485 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 2032 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 13:42:36,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 2032 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 13:42:36,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3578 states. [2022-07-12 13:42:36,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3578 to 3569. [2022-07-12 13:42:36,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3569 states, 2787 states have (on average 1.3344097595981341) internal successors, (3719), 2806 states have internal predecessors, (3719), 530 states have call successors, (530), 246 states have call predecessors, (530), 251 states have return successors, (528), 516 states have call predecessors, (528), 528 states have call successors, (528) [2022-07-12 13:42:36,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3569 states to 3569 states and 4777 transitions. [2022-07-12 13:42:36,604 INFO L78 Accepts]: Start accepts. Automaton has 3569 states and 4777 transitions. Word has length 279 [2022-07-12 13:42:36,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:42:36,605 INFO L495 AbstractCegarLoop]: Abstraction has 3569 states and 4777 transitions. [2022-07-12 13:42:36,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 26.5) internal successors, (106), 5 states have internal predecessors, (106), 4 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-12 13:42:36,605 INFO L276 IsEmpty]: Start isEmpty. Operand 3569 states and 4777 transitions. [2022-07-12 13:42:36,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-07-12 13:42:36,615 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:42:36,615 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:42:36,650 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-12 13:42:36,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-12 13:42:36,832 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:42:36,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:42:36,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1317471886, now seen corresponding path program 1 times [2022-07-12 13:42:36,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:42:36,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223877950] [2022-07-12 13:42:36,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:42:36,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:42:36,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:42:37,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:37,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:37,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:42:37,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:37,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:37,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:42:37,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:37,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:37,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:42:37,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:37,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:37,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:42:37,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:37,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:37,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:42:37,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:37,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:37,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 13:42:37,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 13:42:37,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 13:42:37,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 13:42:37,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-12 13:42:37,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:37,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:37,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-12 13:42:37,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:37,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:37,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 13:42:37,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:37,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:37,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-07-12 13:42:37,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-12 13:42:37,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-12 13:42:37,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-12 13:42:37,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-12 13:42:37,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:42:37,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 13:42:37,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:37,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:37,480 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2022-07-12 13:42:37,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:42:37,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223877950] [2022-07-12 13:42:37,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223877950] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:42:37,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:42:37,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 13:42:37,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799837370] [2022-07-12 13:42:37,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:42:37,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 13:42:37,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:42:37,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 13:42:37,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-07-12 13:42:37,482 INFO L87 Difference]: Start difference. First operand 3569 states and 4777 transitions. Second operand has 8 states, 8 states have (on average 13.25) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (27), 8 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-12 13:42:39,504 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:42:41,517 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:42:43,528 WARN L534 Checker$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 13:42:45,541 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 13:42:48,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:42:48,100 INFO L93 Difference]: Finished difference Result 6678 states and 9828 transitions. [2022-07-12 13:42:48,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 13:42:48,101 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (27), 8 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 279 [2022-07-12 13:42:48,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:42:48,131 INFO L225 Difference]: With dead ends: 6678 [2022-07-12 13:42:48,132 INFO L226 Difference]: Without dead ends: 6675 [2022-07-12 13:42:48,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2022-07-12 13:42:48,142 INFO L413 NwaCegarLoop]: 608 mSDtfsCounter, 1018 mSDsluCounter, 1491 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 637 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 2099 SdHoareTripleChecker+Invalid, 1404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 637 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-07-12 13:42:48,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1053 Valid, 2099 Invalid, 1404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [637 Valid, 763 Invalid, 4 Unknown, 0 Unchecked, 9.9s Time] [2022-07-12 13:42:48,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6675 states. [2022-07-12 13:42:48,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6675 to 3569. [2022-07-12 13:42:48,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3569 states, 2787 states have (on average 1.3322569070685324) internal successors, (3713), 2806 states have internal predecessors, (3713), 530 states have call successors, (530), 246 states have call predecessors, (530), 251 states have return successors, (528), 516 states have call predecessors, (528), 528 states have call successors, (528) [2022-07-12 13:42:48,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3569 states to 3569 states and 4771 transitions. [2022-07-12 13:42:48,523 INFO L78 Accepts]: Start accepts. Automaton has 3569 states and 4771 transitions. Word has length 279 [2022-07-12 13:42:48,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:42:48,523 INFO L495 AbstractCegarLoop]: Abstraction has 3569 states and 4771 transitions. [2022-07-12 13:42:48,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (27), 8 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-12 13:42:48,524 INFO L276 IsEmpty]: Start isEmpty. Operand 3569 states and 4771 transitions. [2022-07-12 13:42:48,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-07-12 13:42:48,535 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:42:48,535 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:42:48,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-12 13:42:48,536 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:42:48,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:42:48,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1200665380, now seen corresponding path program 1 times [2022-07-12 13:42:48,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:42:48,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561246101] [2022-07-12 13:42:48,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:42:48,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:42:48,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:48,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:42:48,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:48,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:48,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:48,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:48,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:42:48,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:48,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:48,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:48,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:48,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:48,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:42:48,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:48,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:48,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:48,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:48,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:48,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:42:48,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:48,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:48,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:48,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:48,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:48,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:42:48,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:48,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:48,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:48,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:48,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:48,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:42:48,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:48,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:48,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:48,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:48,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:48,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 13:42:48,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:49,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 13:42:49,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:49,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 13:42:49,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:49,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 13:42:49,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:49,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-12 13:42:49,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:49,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:49,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:49,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:49,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:49,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-12 13:42:49,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:49,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:49,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:49,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:49,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:49,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-12 13:42:49,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:49,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:49,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:49,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:49,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-07-12 13:42:49,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:49,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-07-12 13:42:49,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:49,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 13:42:49,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:49,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-12 13:42:49,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:49,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-12 13:42:49,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:49,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:42:49,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:49,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 13:42:49,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:49,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:49,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:49,283 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 542 trivial. 0 not checked. [2022-07-12 13:42:49,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:42:49,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561246101] [2022-07-12 13:42:49,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561246101] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:42:49,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:42:49,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 13:42:49,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630816855] [2022-07-12 13:42:49,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:42:49,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 13:42:49,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:42:49,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 13:42:49,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-07-12 13:42:49,288 INFO L87 Difference]: Start difference. First operand 3569 states and 4771 transitions. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 5 states have internal predecessors, (103), 2 states have call successors, (26), 7 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-12 13:42:51,312 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:42:53,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:42:55,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:42:55,810 INFO L93 Difference]: Finished difference Result 7361 states and 10773 transitions. [2022-07-12 13:42:55,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-12 13:42:55,811 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 5 states have internal predecessors, (103), 2 states have call successors, (26), 7 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 273 [2022-07-12 13:42:55,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:42:55,813 INFO L225 Difference]: With dead ends: 7361 [2022-07-12 13:42:55,813 INFO L226 Difference]: Without dead ends: 0 [2022-07-12 13:42:55,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=310, Unknown=0, NotChecked=0, Total=462 [2022-07-12 13:42:55,835 INFO L413 NwaCegarLoop]: 563 mSDtfsCounter, 1117 mSDsluCounter, 2150 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 601 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1150 SdHoareTripleChecker+Valid, 2713 SdHoareTripleChecker+Invalid, 1457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 601 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-07-12 13:42:55,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1150 Valid, 2713 Invalid, 1457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [601 Valid, 854 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-07-12 13:42:55,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-12 13:42:55,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-12 13:42:55,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 13:42:55,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-12 13:42:55,837 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 273 [2022-07-12 13:42:55,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:42:55,837 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-12 13:42:55,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 5 states have internal predecessors, (103), 2 states have call successors, (26), 7 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-12 13:42:55,838 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-12 13:42:55,838 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-12 13:42:55,840 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 13:42:55,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-12 13:42:55,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.