./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-v2--dvb-usb-lmedm04.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-v2--dvb-usb-lmedm04.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 9baad8c3f39120ab2251378cc0d6fe7b52fdd04109a6ac87357d1c2188f7d5d6 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 13:40:57,540 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 13:40:57,542 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 13:40:57,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 13:40:57,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 13:40:57,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 13:40:57,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 13:40:57,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 13:40:57,565 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 13:40:57,565 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 13:40:57,566 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 13:40:57,567 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 13:40:57,567 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 13:40:57,568 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 13:40:57,569 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 13:40:57,569 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 13:40:57,570 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 13:40:57,571 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 13:40:57,572 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 13:40:57,573 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 13:40:57,574 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 13:40:57,575 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 13:40:57,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 13:40:57,577 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 13:40:57,577 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 13:40:57,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 13:40:57,580 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 13:40:57,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 13:40:57,586 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 13:40:57,587 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 13:40:57,588 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 13:40:57,588 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 13:40:57,589 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 13:40:57,589 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 13:40:57,590 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 13:40:57,591 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 13:40:57,591 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 13:40:57,591 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 13:40:57,592 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 13:40:57,592 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 13:40:57,592 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 13:40:57,598 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 13:40:57,600 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 13:40:57,622 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 13:40:57,622 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 13:40:57,623 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 13:40:57,623 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 13:40:57,623 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 13:40:57,623 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 13:40:57,624 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 13:40:57,624 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 13:40:57,624 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 13:40:57,624 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 13:40:57,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 13:40:57,625 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 13:40:57,625 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 13:40:57,625 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 13:40:57,625 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 13:40:57,625 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 13:40:57,625 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 13:40:57,625 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 13:40:57,626 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 13:40:57,626 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 13:40:57,626 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 13:40:57,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 13:40:57,626 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 13:40:57,626 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 13:40:57,626 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 13:40:57,627 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 13:40:57,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 13:40:57,627 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 13:40:57,627 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 13:40:57,627 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 13:40:57,627 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9baad8c3f39120ab2251378cc0d6fe7b52fdd04109a6ac87357d1c2188f7d5d6 [2022-07-12 13:40:57,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 13:40:57,861 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 13:40:57,864 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 13:40:57,865 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 13:40:57,866 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 13:40:57,867 INFO L432 ainManager$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-v2--dvb-usb-lmedm04.ko-entry_point.cil.out.i [2022-07-12 13:40:57,912 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b3ac7e56/1b25b47eb2684f65b9ceb8734b2b9aea/FLAG8fb1f0978 [2022-07-12 13:40:58,626 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 13:40:58,627 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-v2--dvb-usb-lmedm04.ko-entry_point.cil.out.i [2022-07-12 13:40:58,663 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b3ac7e56/1b25b47eb2684f65b9ceb8734b2b9aea/FLAG8fb1f0978 [2022-07-12 13:40:58,898 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b3ac7e56/1b25b47eb2684f65b9ceb8734b2b9aea [2022-07-12 13:40:58,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 13:40:58,901 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 13:40:58,903 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 13:40:58,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 13:40:58,905 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 13:40:58,906 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:40:58" (1/1) ... [2022-07-12 13:40:58,908 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7758df79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:40:58, skipping insertion in model container [2022-07-12 13:40:58,908 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:40:58" (1/1) ... [2022-07-12 13:40:58,912 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 13:40:59,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 13:41:00,066 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-v2--dvb-usb-lmedm04.ko-entry_point.cil.out.i[299448,299461] [2022-07-12 13:41:00,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:41:00,308 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 13:41:00,573 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-v2--dvb-usb-lmedm04.ko-entry_point.cil.out.i[299448,299461] [2022-07-12 13:41:00,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:41:00,679 INFO L208 MainTranslator]: Completed translation [2022-07-12 13:41:00,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:41:00 WrapperNode [2022-07-12 13:41:00,681 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 13:41:00,682 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 13:41:00,682 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 13:41:00,682 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 13:41:00,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:41:00" (1/1) ... [2022-07-12 13:41:00,759 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:41:00" (1/1) ... [2022-07-12 13:41:00,853 INFO L137 Inliner]: procedures = 222, calls = 2022, calls flagged for inlining = 78, calls inlined = 59, statements flattened = 3252 [2022-07-12 13:41:00,853 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 13:41:00,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 13:41:00,855 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 13:41:00,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 13:41:00,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:41:00" (1/1) ... [2022-07-12 13:41:00,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:41:00" (1/1) ... [2022-07-12 13:41:00,883 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:41:00" (1/1) ... [2022-07-12 13:41:00,884 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:41:00" (1/1) ... [2022-07-12 13:41:00,972 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:41:00" (1/1) ... [2022-07-12 13:41:00,991 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:41:00" (1/1) ... [2022-07-12 13:41:01,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:41:00" (1/1) ... [2022-07-12 13:41:01,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 13:41:01,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 13:41:01,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 13:41:01,032 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 13:41:01,033 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:41:00" (1/1) ... [2022-07-12 13:41:01,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 13:41:01,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 13:41:01,073 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 13:41:01,100 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 13:41:01,118 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-12 13:41:01,118 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-12 13:41:01,118 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-07-12 13:41:01,118 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-07-12 13:41:01,119 INFO L130 BoogieDeclarations]: Found specification of procedure lme2510_get_rc_config [2022-07-12 13:41:01,119 INFO L138 BoogieDeclarations]: Found implementation of procedure lme2510_get_rc_config [2022-07-12 13:41:01,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 13:41:01,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 13:41:01,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 13:41:01,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 13:41:01,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 13:41:01,119 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 13:41:01,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 13:41:01,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 13:41:01,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i2c_mutex_of_dvb_usb_device [2022-07-12 13:41:01,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i2c_mutex_of_dvb_usb_device [2022-07-12 13:41:01,120 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-12 13:41:01,120 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-12 13:41:01,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 13:41:01,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 13:41:01,120 INFO L130 BoogieDeclarations]: Found specification of procedure __symbol_put [2022-07-12 13:41:01,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __symbol_put [2022-07-12 13:41:01,121 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 13:41:01,121 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 13:41:01,121 INFO L130 BoogieDeclarations]: Found specification of procedure lme2510_download_firmware [2022-07-12 13:41:01,121 INFO L138 BoogieDeclarations]: Found implementation of procedure lme2510_download_firmware [2022-07-12 13:41:01,121 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-12 13:41:01,121 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-12 13:41:01,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 13:41:01,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 13:41:01,122 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~$Pointer$ [2022-07-12 13:41:01,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~$Pointer$ [2022-07-12 13:41:01,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 13:41:01,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 13:41:01,122 INFO L130 BoogieDeclarations]: Found specification of procedure lme2510_usb_talk [2022-07-12 13:41:01,122 INFO L138 BoogieDeclarations]: Found implementation of procedure lme2510_usb_talk [2022-07-12 13:41:01,123 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-12 13:41:01,123 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-12 13:41:01,123 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-12 13:41:01,123 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-12 13:41:01,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-07-12 13:41:01,123 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-07-12 13:41:01,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-12 13:41:01,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-12 13:41:01,124 INFO L130 BoogieDeclarations]: Found specification of procedure lme2510_streaming_ctrl [2022-07-12 13:41:01,124 INFO L138 BoogieDeclarations]: Found implementation of procedure lme2510_streaming_ctrl [2022-07-12 13:41:01,124 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-07-12 13:41:01,124 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-07-12 13:41:01,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 13:41:01,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 13:41:01,124 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 13:41:01,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_i2c_mutex_of_dvb_usb_device [2022-07-12 13:41:01,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_i2c_mutex_of_dvb_usb_device [2022-07-12 13:41:01,125 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~$Pointer$ [2022-07-12 13:41:01,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~$Pointer$ [2022-07-12 13:41:01,126 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-12 13:41:01,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-12 13:41:01,126 INFO L130 BoogieDeclarations]: Found specification of procedure stv0299_writereg [2022-07-12 13:41:01,127 INFO L138 BoogieDeclarations]: Found implementation of procedure stv0299_writereg [2022-07-12 13:41:01,127 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-07-12 13:41:01,127 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-07-12 13:41:01,127 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 13:41:01,127 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 13:41:01,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 13:41:01,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 13:41:01,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 13:41:01,128 INFO L130 BoogieDeclarations]: Found specification of procedure lme2510_i2c_xfer [2022-07-12 13:41:01,128 INFO L138 BoogieDeclarations]: Found implementation of procedure lme2510_i2c_xfer [2022-07-12 13:41:01,128 INFO L130 BoogieDeclarations]: Found specification of procedure lme2510_identify_state [2022-07-12 13:41:01,128 INFO L138 BoogieDeclarations]: Found implementation of procedure lme2510_identify_state [2022-07-12 13:41:01,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-12 13:41:01,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-12 13:41:01,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_usb_mutex_of_dvb_usb_device [2022-07-12 13:41:01,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_usb_mutex_of_dvb_usb_device [2022-07-12 13:41:01,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 13:41:01,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-12 13:41:01,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-12 13:41:01,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 13:41:01,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-12 13:41:01,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-12 13:41:01,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 13:41:01,130 INFO L130 BoogieDeclarations]: Found specification of procedure lme_firmware_switch [2022-07-12 13:41:01,130 INFO L138 BoogieDeclarations]: Found implementation of procedure lme_firmware_switch [2022-07-12 13:41:01,130 INFO L130 BoogieDeclarations]: Found specification of procedure __symbol_get [2022-07-12 13:41:01,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __symbol_get [2022-07-12 13:41:01,130 INFO L130 BoogieDeclarations]: Found specification of procedure lme_coldreset [2022-07-12 13:41:01,130 INFO L138 BoogieDeclarations]: Found implementation of procedure lme_coldreset [2022-07-12 13:41:01,131 INFO L130 BoogieDeclarations]: Found specification of procedure lme2510_powerup [2022-07-12 13:41:01,131 INFO L138 BoogieDeclarations]: Found implementation of procedure lme2510_powerup [2022-07-12 13:41:01,131 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2022-07-12 13:41:01,131 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2022-07-12 13:41:01,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 13:41:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 13:41:01,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 13:41:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_usbv2_probe [2022-07-12 13:41:01,132 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_usbv2_probe [2022-07-12 13:41:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~$Pointer$ [2022-07-12 13:41:01,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~$Pointer$ [2022-07-12 13:41:01,706 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 13:41:01,709 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 13:41:02,082 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 13:41:05,931 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 13:41:05,953 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 13:41:05,953 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 13:41:05,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 01:41:05 BoogieIcfgContainer [2022-07-12 13:41:05,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 13:41:05,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 13:41:05,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 13:41:05,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 13:41:05,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 01:40:58" (1/3) ... [2022-07-12 13:41:05,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@107e0a0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 01:41:05, skipping insertion in model container [2022-07-12 13:41:05,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:41:00" (2/3) ... [2022-07-12 13:41:05,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@107e0a0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 01:41:05, skipping insertion in model container [2022-07-12 13:41:05,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 01:41:05" (3/3) ... [2022-07-12 13:41:05,961 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--media--usb--dvb-usb-v2--dvb-usb-lmedm04.ko-entry_point.cil.out.i [2022-07-12 13:41:05,970 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 13:41:05,970 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 13:41:06,036 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 13:41:06,040 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@3e0bf3f2, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6e6e3c1a [2022-07-12 13:41:06,040 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 13:41:06,045 INFO L276 IsEmpty]: Start isEmpty. Operand has 759 states, 566 states have (on average 1.4063604240282686) internal successors, (796), 591 states have internal predecessors, (796), 151 states have call successors, (151), 41 states have call predecessors, (151), 40 states have return successors, (145), 145 states have call predecessors, (145), 145 states have call successors, (145) [2022-07-12 13:41:06,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-07-12 13:41:06,055 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:41:06,056 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:41:06,056 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:41:06,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:41:06,059 INFO L85 PathProgramCache]: Analyzing trace with hash 138793034, now seen corresponding path program 1 times [2022-07-12 13:41:06,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:41:06,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151699420] [2022-07-12 13:41:06,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:41:06,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:41:06,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:41:06,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:06,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:41:06,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:06,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:06,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:41:06,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:06,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:06,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:41:06,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:06,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:06,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:41:06,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:06,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:06,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:41:06,747 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 1 [2022-07-12 13:41:06,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:06,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:41:06,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:06,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:06,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:41:06,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:06,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:06,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:41:06,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-12 13:41:06,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 13:41:06,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-12 13:41:06,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-12 13:41:06,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:06,918 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2022-07-12 13:41:06,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:41:06,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151699420] [2022-07-12 13:41:06,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151699420] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:41:06,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:41:06,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 13:41:06,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709186688] [2022-07-12 13:41:06,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:41:06,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 13:41:06,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:41:06,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 13:41:06,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 13:41:06,959 INFO L87 Difference]: Start difference. First operand has 759 states, 566 states have (on average 1.4063604240282686) internal successors, (796), 591 states have internal predecessors, (796), 151 states have call successors, (151), 41 states have call predecessors, (151), 40 states have return successors, (145), 145 states have call predecessors, (145), 145 states have call successors, (145) Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 13:41:09,462 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 13:41:10,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:41:10,223 INFO L93 Difference]: Finished difference Result 1618 states and 2450 transitions. [2022-07-12 13:41:10,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 13:41:10,225 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 180 [2022-07-12 13:41:10,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:41:10,237 INFO L225 Difference]: With dead ends: 1618 [2022-07-12 13:41:10,238 INFO L226 Difference]: Without dead ends: 851 [2022-07-12 13:41:10,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 74 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 13:41:10,245 INFO L413 NwaCegarLoop]: 1073 mSDtfsCounter, 472 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 531 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 1771 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 531 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-12 13:41:10,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 1771 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [531 Valid, 329 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-07-12 13:41:10,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2022-07-12 13:41:10,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 746. [2022-07-12 13:41:10,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 561 states have (on average 1.392156862745098) internal successors, (781), 578 states have internal predecessors, (781), 145 states have call successors, (145), 40 states have call predecessors, (145), 39 states have return successors, (136), 136 states have call predecessors, (136), 136 states have call successors, (136) [2022-07-12 13:41:10,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 1062 transitions. [2022-07-12 13:41:10,310 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 1062 transitions. Word has length 180 [2022-07-12 13:41:10,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:41:10,327 INFO L495 AbstractCegarLoop]: Abstraction has 746 states and 1062 transitions. [2022-07-12 13:41:10,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 13:41:10,328 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 1062 transitions. [2022-07-12 13:41:10,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-07-12 13:41:10,339 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:41:10,339 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:41:10,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 13:41:10,340 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:41:10,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:41:10,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1921060774, now seen corresponding path program 1 times [2022-07-12 13:41:10,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:41:10,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104554026] [2022-07-12 13:41:10,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:41:10,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:41:10,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:10,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:41:10,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:10,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:10,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:10,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:10,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:10,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:41:10,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:10,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:10,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:10,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:10,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:10,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:41:10,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:10,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:10,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:10,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:10,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:10,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:41:10,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:10,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:10,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:10,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:10,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:10,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:41:10,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:10,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:10,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:10,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:10,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:10,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:41:10,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:10,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:10,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:10,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:10,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:10,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:41:10,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:10,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:10,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:10,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:10,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:10,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:41:10,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:10,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:10,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:10,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:10,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:10,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:41:10,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:10,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-12 13:41:10,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:10,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 13:41:10,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:10,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-12 13:41:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:10,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-12 13:41:10,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:10,977 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2022-07-12 13:41:10,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:41:10,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104554026] [2022-07-12 13:41:10,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104554026] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:41:10,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:41:10,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:41:10,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157065445] [2022-07-12 13:41:10,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:41:10,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:41:10,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:41:10,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:41:10,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:41:10,980 INFO L87 Difference]: Start difference. First operand 746 states and 1062 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, (18), 5 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-07-12 13:41:13,696 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:41:15,709 WARN L534 Checker$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 13:41:17,728 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:41:21,182 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:41:22,710 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:41:24,728 WARN L534 Checker$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 13:41:25,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:41:25,449 INFO L93 Difference]: Finished difference Result 2364 states and 3456 transitions. [2022-07-12 13:41:25,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 13:41:25,450 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, (18), 5 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 180 [2022-07-12 13:41:25,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:41:25,457 INFO L225 Difference]: With dead ends: 2364 [2022-07-12 13:41:25,457 INFO L226 Difference]: Without dead ends: 1652 [2022-07-12 13:41:25,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 60 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 13:41:25,459 INFO L413 NwaCegarLoop]: 1188 mSDtfsCounter, 1570 mSDsluCounter, 2728 mSDsCounter, 0 mSdLazyCounter, 1448 mSolverCounterSat, 700 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1680 SdHoareTripleChecker+Valid, 3916 SdHoareTripleChecker+Invalid, 2152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 700 IncrementalHoareTripleChecker+Valid, 1448 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2022-07-12 13:41:25,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1680 Valid, 3916 Invalid, 2152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [700 Valid, 1448 Invalid, 4 Unknown, 0 Unchecked, 14.3s Time] [2022-07-12 13:41:25,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1652 states. [2022-07-12 13:41:25,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1652 to 1424. [2022-07-12 13:41:25,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1424 states, 1080 states have (on average 1.3981481481481481) internal successors, (1510), 1107 states have internal predecessors, (1510), 266 states have call successors, (266), 78 states have call predecessors, (266), 77 states have return successors, (257), 256 states have call predecessors, (257), 257 states have call successors, (257) [2022-07-12 13:41:25,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1424 states to 1424 states and 2033 transitions. [2022-07-12 13:41:25,511 INFO L78 Accepts]: Start accepts. Automaton has 1424 states and 2033 transitions. Word has length 180 [2022-07-12 13:41:25,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:41:25,512 INFO L495 AbstractCegarLoop]: Abstraction has 1424 states and 2033 transitions. [2022-07-12 13:41:25,512 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, (18), 5 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-07-12 13:41:25,512 INFO L276 IsEmpty]: Start isEmpty. Operand 1424 states and 2033 transitions. [2022-07-12 13:41:25,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-07-12 13:41:25,513 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:41:25,514 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:41:25,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 13:41:25,514 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:41:25,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:41:25,514 INFO L85 PathProgramCache]: Analyzing trace with hash -879730340, now seen corresponding path program 1 times [2022-07-12 13:41:25,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:41:25,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633039796] [2022-07-12 13:41:25,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:41:25,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:41:25,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:25,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:41:25,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:25,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:25,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:25,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:25,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:25,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:41:25,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:25,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:25,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:25,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:25,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:25,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:41:25,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:25,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:25,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:25,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:25,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:25,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:41:25,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:25,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:25,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:25,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:25,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:25,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:41:25,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:25,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:25,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:25,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:25,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:25,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:41:25,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:25,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:25,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:25,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:25,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:41:25,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:25,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:25,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:25,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:25,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:25,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:41:25,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:25,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:25,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:25,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:25,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:25,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:41:26,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:26,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-12 13:41:26,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:26,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 13:41:26,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:26,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-12 13:41:26,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:26,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-12 13:41:26,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:26,081 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2022-07-12 13:41:26,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:41:26,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633039796] [2022-07-12 13:41:26,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633039796] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:41:26,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:41:26,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:41:26,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863281299] [2022-07-12 13:41:26,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:41:26,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:41:26,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:41:26,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:41:26,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:41:26,083 INFO L87 Difference]: Start difference. First operand 1424 states and 2033 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-07-12 13:41:28,705 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:41:30,726 WARN L534 Checker$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 13:41:32,739 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:41:35,968 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:41:37,038 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:41:39,056 WARN L534 Checker$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 13:41:39,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:41:39,777 INFO L93 Difference]: Finished difference Result 4566 states and 6698 transitions. [2022-07-12 13:41:39,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 13:41:39,778 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 180 [2022-07-12 13:41:39,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:41:39,794 INFO L225 Difference]: With dead ends: 4566 [2022-07-12 13:41:39,795 INFO L226 Difference]: Without dead ends: 3176 [2022-07-12 13:41:39,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-12 13:41:39,804 INFO L413 NwaCegarLoop]: 1180 mSDtfsCounter, 1508 mSDsluCounter, 2751 mSDsCounter, 0 mSdLazyCounter, 1446 mSolverCounterSat, 689 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1622 SdHoareTripleChecker+Valid, 3931 SdHoareTripleChecker+Invalid, 2139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 689 IncrementalHoareTripleChecker+Valid, 1446 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2022-07-12 13:41:39,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1622 Valid, 3931 Invalid, 2139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [689 Valid, 1446 Invalid, 4 Unknown, 0 Unchecked, 13.5s Time] [2022-07-12 13:41:39,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3176 states. [2022-07-12 13:41:39,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3176 to 2764. [2022-07-12 13:41:39,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2764 states, 2109 states have (on average 1.4011379800853485) internal successors, (2955), 2154 states have internal predecessors, (2955), 501 states have call successors, (501), 154 states have call predecessors, (501), 153 states have return successors, (492), 491 states have call predecessors, (492), 492 states have call successors, (492) [2022-07-12 13:41:39,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2764 states to 2764 states and 3948 transitions. [2022-07-12 13:41:39,942 INFO L78 Accepts]: Start accepts. Automaton has 2764 states and 3948 transitions. Word has length 180 [2022-07-12 13:41:39,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:41:39,943 INFO L495 AbstractCegarLoop]: Abstraction has 2764 states and 3948 transitions. [2022-07-12 13:41:39,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-07-12 13:41:39,943 INFO L276 IsEmpty]: Start isEmpty. Operand 2764 states and 3948 transitions. [2022-07-12 13:41:39,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-12 13:41:39,945 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:41:39,945 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:41:39,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 13:41:39,946 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:41:39,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:41:39,946 INFO L85 PathProgramCache]: Analyzing trace with hash -357555120, now seen corresponding path program 1 times [2022-07-12 13:41:39,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:41:39,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213954029] [2022-07-12 13:41:39,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:41:39,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:41:40,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:40,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:41:40,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:40,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:40,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:40,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:40,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:40,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:41:40,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:40,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:40,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:40,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:40,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:40,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:41:40,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:40,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:40,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:40,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:40,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:40,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:41:40,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:40,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:40,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:40,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:40,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:40,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:41:40,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:40,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:40,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:40,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:40,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:40,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:41:40,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:40,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:40,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:40,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:40,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:40,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:41:40,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:40,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:40,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:40,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:40,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:40,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:41:40,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:40,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:40,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:40,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:40,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:40,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:41:40,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:40,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-12 13:41:40,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:40,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 13:41:40,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:40,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-12 13:41:40,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:40,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-12 13:41:40,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:40,470 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2022-07-12 13:41:40,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:41:40,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213954029] [2022-07-12 13:41:40,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213954029] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:41:40,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:41:40,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:41:40,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686682689] [2022-07-12 13:41:40,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:41:40,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:41:40,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:41:40,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:41:40,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:41:40,474 INFO L87 Difference]: Start difference. First operand 2764 states and 3948 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-07-12 13:41:43,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:41:45,475 WARN L534 Checker$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 13:41:46,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:41:46,424 INFO L93 Difference]: Finished difference Result 7240 states and 10491 transitions. [2022-07-12 13:41:46,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 13:41:46,425 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 183 [2022-07-12 13:41:46,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:41:46,444 INFO L225 Difference]: With dead ends: 7240 [2022-07-12 13:41:46,444 INFO L226 Difference]: Without dead ends: 4510 [2022-07-12 13:41:46,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 60 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 13:41:46,456 INFO L413 NwaCegarLoop]: 1101 mSDtfsCounter, 1113 mSDsluCounter, 2053 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 551 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1154 SdHoareTripleChecker+Valid, 3154 SdHoareTripleChecker+Invalid, 1478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 551 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-07-12 13:41:46,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1154 Valid, 3154 Invalid, 1478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [551 Valid, 925 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-07-12 13:41:46,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4510 states. [2022-07-12 13:41:46,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4510 to 3748. [2022-07-12 13:41:46,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3748 states, 2881 states have (on average 1.3963901423116973) internal successors, (4023), 2926 states have internal predecessors, (4023), 635 states have call successors, (635), 232 states have call predecessors, (635), 231 states have return successors, (626), 625 states have call predecessors, (626), 626 states have call successors, (626) [2022-07-12 13:41:46,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3748 states to 3748 states and 5284 transitions. [2022-07-12 13:41:46,575 INFO L78 Accepts]: Start accepts. Automaton has 3748 states and 5284 transitions. Word has length 183 [2022-07-12 13:41:46,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:41:46,576 INFO L495 AbstractCegarLoop]: Abstraction has 3748 states and 5284 transitions. [2022-07-12 13:41:46,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-07-12 13:41:46,577 INFO L276 IsEmpty]: Start isEmpty. Operand 3748 states and 5284 transitions. [2022-07-12 13:41:46,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-12 13:41:46,578 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:41:46,578 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:41:46,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 13:41:46,579 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:41:46,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:41:46,579 INFO L85 PathProgramCache]: Analyzing trace with hash 661855008, now seen corresponding path program 1 times [2022-07-12 13:41:46,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:41:46,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363181717] [2022-07-12 13:41:46,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:41:46,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:41:46,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:46,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:41:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:46,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:46,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:46,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:46,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:46,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:41:46,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:46,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:46,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:46,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:46,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:46,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:41:46,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:46,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:46,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:46,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:46,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:46,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:41:46,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:46,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:46,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:46,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:46,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:46,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:41:46,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:46,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:46,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:46,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:46,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:46,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:41:46,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:46,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:46,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:46,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:46,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:46,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:41:46,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:47,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:47,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:47,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:47,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:47,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:41:47,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:47,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:47,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:47,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:47,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:47,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:41:47,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:47,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-12 13:41:47,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:47,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 13:41:47,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:47,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-12 13:41:47,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:47,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-12 13:41:47,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:47,114 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2022-07-12 13:41:47,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:41:47,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363181717] [2022-07-12 13:41:47,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363181717] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:41:47,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:41:47,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:41:47,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864942373] [2022-07-12 13:41:47,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:41:47,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:41:47,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:41:47,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:41:47,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:41:47,118 INFO L87 Difference]: Start difference. First operand 3748 states and 5284 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-07-12 13:41:49,809 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 13:41:51,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:41:51,451 INFO L93 Difference]: Finished difference Result 11732 states and 16959 transitions. [2022-07-12 13:41:51,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 13:41:51,452 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), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 187 [2022-07-12 13:41:51,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:41:51,485 INFO L225 Difference]: With dead ends: 11732 [2022-07-12 13:41:51,486 INFO L226 Difference]: Without dead ends: 8028 [2022-07-12 13:41:51,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 60 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 13:41:51,498 INFO L413 NwaCegarLoop]: 1914 mSDtfsCounter, 1475 mSDsluCounter, 2053 mSDsCounter, 0 mSdLazyCounter, 891 mSolverCounterSat, 666 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1586 SdHoareTripleChecker+Valid, 3967 SdHoareTripleChecker+Invalid, 1558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 666 IncrementalHoareTripleChecker+Valid, 891 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-07-12 13:41:51,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1586 Valid, 3967 Invalid, 1558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [666 Valid, 891 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-07-12 13:41:51,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8028 states. [2022-07-12 13:41:51,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8028 to 6742. [2022-07-12 13:41:51,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6742 states, 5197 states have (on average 1.3971522031941506) internal successors, (7261), 5280 states have internal predecessors, (7261), 1125 states have call successors, (1125), 420 states have call predecessors, (1125), 419 states have return successors, (1116), 1113 states have call predecessors, (1116), 1116 states have call successors, (1116) [2022-07-12 13:41:51,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6742 states to 6742 states and 9502 transitions. [2022-07-12 13:41:51,684 INFO L78 Accepts]: Start accepts. Automaton has 6742 states and 9502 transitions. Word has length 187 [2022-07-12 13:41:51,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:41:51,685 INFO L495 AbstractCegarLoop]: Abstraction has 6742 states and 9502 transitions. [2022-07-12 13:41:51,685 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), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-07-12 13:41:51,685 INFO L276 IsEmpty]: Start isEmpty. Operand 6742 states and 9502 transitions. [2022-07-12 13:41:51,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-07-12 13:41:51,686 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:41:51,687 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:41:51,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 13:41:51,687 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:41:51,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:41:51,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1166351116, now seen corresponding path program 1 times [2022-07-12 13:41:51,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:41:51,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604581147] [2022-07-12 13:41:51,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:41:51,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:41:51,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:52,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:41:52,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:52,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:52,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:52,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:52,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:52,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:41:52,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:52,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:52,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:52,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:52,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:52,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:41:52,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:52,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:52,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:52,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:52,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:52,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:41:52,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:52,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:52,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:52,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:52,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:52,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:41:52,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:52,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:52,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:52,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:52,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:52,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:41:52,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:52,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:52,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:52,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:52,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:41:52,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:52,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:52,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:52,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:52,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:52,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:41:52,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:52,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:52,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:52,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:52,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:52,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:41:52,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:52,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-12 13:41:52,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:52,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 13:41:52,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:52,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-12 13:41:52,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:52,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-12 13:41:52,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:52,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 13:41:52,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:52,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:52,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:52,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:52,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:52,361 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 554 trivial. 0 not checked. [2022-07-12 13:41:52,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:41:52,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604581147] [2022-07-12 13:41:52,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604581147] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:41:52,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:41:52,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:41:52,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727662052] [2022-07-12 13:41:52,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:41:52,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:41:52,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:41:52,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:41:52,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:41:52,363 INFO L87 Difference]: Start difference. First operand 6742 states and 9502 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, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 13:41:54,892 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:41:55,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:41:55,989 INFO L93 Difference]: Finished difference Result 9266 states and 13354 transitions. [2022-07-12 13:41:55,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 13:41:55,990 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, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 200 [2022-07-12 13:41:55,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:41:56,023 INFO L225 Difference]: With dead ends: 9266 [2022-07-12 13:41:56,024 INFO L226 Difference]: Without dead ends: 9262 [2022-07-12 13:41:56,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 65 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 13:41:56,028 INFO L413 NwaCegarLoop]: 1058 mSDtfsCounter, 1526 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 649 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1622 SdHoareTripleChecker+Valid, 1950 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 649 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-07-12 13:41:56,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1622 Valid, 1950 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [649 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-07-12 13:41:56,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9262 states. [2022-07-12 13:41:56,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9262 to 7514. [2022-07-12 13:41:56,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7514 states, 5774 states have (on average 1.3860408728784206) internal successors, (8003), 5855 states have internal predecessors, (8003), 1219 states have call successors, (1219), 521 states have call predecessors, (1219), 520 states have return successors, (1212), 1209 states have call predecessors, (1212), 1212 states have call successors, (1212) [2022-07-12 13:41:56,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7514 states to 7514 states and 10434 transitions. [2022-07-12 13:41:56,346 INFO L78 Accepts]: Start accepts. Automaton has 7514 states and 10434 transitions. Word has length 200 [2022-07-12 13:41:56,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:41:56,347 INFO L495 AbstractCegarLoop]: Abstraction has 7514 states and 10434 transitions. [2022-07-12 13:41:56,347 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, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 13:41:56,347 INFO L276 IsEmpty]: Start isEmpty. Operand 7514 states and 10434 transitions. [2022-07-12 13:41:56,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-07-12 13:41:56,348 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:41:56,349 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:41:56,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 13:41:56,349 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:41:56,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:41:56,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1797326000, now seen corresponding path program 1 times [2022-07-12 13:41:56,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:41:56,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642042906] [2022-07-12 13:41:56,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:41:56,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:41:56,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:56,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:41:56,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:56,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:56,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:56,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:56,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:56,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:41:56,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:56,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:56,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:56,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:56,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:56,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:41:56,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:56,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:56,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:56,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:56,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:56,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:41:56,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:56,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:56,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:56,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:56,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:56,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:41:56,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:56,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:56,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:56,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:56,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:41:56,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:56,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:56,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:56,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:56,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:56,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:41:56,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:56,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:56,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:56,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:56,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:41:56,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:56,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:56,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:56,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:56,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:56,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:41:56,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:56,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-12 13:41:56,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:56,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 13:41:56,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:56,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-12 13:41:56,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:56,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-12 13:41:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:56,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 13:41:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:56,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:56,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:56,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:56,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:56,912 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 554 trivial. 0 not checked. [2022-07-12 13:41:56,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:41:56,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642042906] [2022-07-12 13:41:56,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642042906] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:41:56,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:41:56,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:41:56,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48503039] [2022-07-12 13:41:56,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:41:56,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:41:56,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:41:56,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:41:56,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:41:56,914 INFO L87 Difference]: Start difference. First operand 7514 states and 10434 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, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 13:41:59,322 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 13:42:00,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:42:00,204 INFO L93 Difference]: Finished difference Result 9259 states and 13333 transitions. [2022-07-12 13:42:00,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 13:42:00,205 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, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 201 [2022-07-12 13:42:00,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:42:00,236 INFO L225 Difference]: With dead ends: 9259 [2022-07-12 13:42:00,236 INFO L226 Difference]: Without dead ends: 9256 [2022-07-12 13:42:00,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-12 13:42:00,241 INFO L413 NwaCegarLoop]: 1063 mSDtfsCounter, 1440 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 565 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1535 SdHoareTripleChecker+Valid, 1745 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 565 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-12 13:42:00,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1535 Valid, 1745 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [565 Valid, 336 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-07-12 13:42:00,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9256 states. [2022-07-12 13:42:00,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9256 to 7513. [2022-07-12 13:42:00,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7513 states, 5774 states have (on average 1.3858676827156218) internal successors, (8002), 5854 states have internal predecessors, (8002), 1218 states have call successors, (1218), 521 states have call predecessors, (1218), 520 states have return successors, (1212), 1209 states have call predecessors, (1212), 1212 states have call successors, (1212) [2022-07-12 13:42:00,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7513 states to 7513 states and 10432 transitions. [2022-07-12 13:42:00,540 INFO L78 Accepts]: Start accepts. Automaton has 7513 states and 10432 transitions. Word has length 201 [2022-07-12 13:42:00,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:42:00,540 INFO L495 AbstractCegarLoop]: Abstraction has 7513 states and 10432 transitions. [2022-07-12 13:42:00,541 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, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 13:42:00,541 INFO L276 IsEmpty]: Start isEmpty. Operand 7513 states and 10432 transitions. [2022-07-12 13:42:00,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-07-12 13:42:00,543 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:42:00,543 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:00,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 13:42:00,543 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:42:00,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:42:00,544 INFO L85 PathProgramCache]: Analyzing trace with hash 117293943, now seen corresponding path program 1 times [2022-07-12 13:42:00,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:42:00,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730126727] [2022-07-12 13:42:00,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:42:00,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:42:00,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:00,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:42:00,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:00,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:00,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:00,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:00,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:00,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:42:00,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:00,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:00,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:00,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:00,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:00,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:42:00,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:00,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:00,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:00,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:00,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:00,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:42:00,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:00,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:00,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:00,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:00,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:00,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:42:00,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:00,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:00,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:00,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:00,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:00,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:42:00,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:00,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:00,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:00,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:00,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:00,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:42:00,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:00,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:00,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:00,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:00,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:00,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:42:00,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:00,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:00,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:00,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:00,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:00,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:42:00,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:00,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-12 13:42:00,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:00,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 13:42:00,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:00,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-12 13:42:00,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:00,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-12 13:42:00,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:01,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 13:42:01,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:01,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:01,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:01,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:01,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:01,034 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 554 trivial. 0 not checked. [2022-07-12 13:42:01,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:42:01,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730126727] [2022-07-12 13:42:01,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730126727] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:42:01,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:42:01,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:42:01,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426407410] [2022-07-12 13:42:01,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:42:01,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:42:01,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:42:01,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:42:01,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:42:01,036 INFO L87 Difference]: Start difference. First operand 7513 states and 10432 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 13:42:02,926 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:42:04,940 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 13:42:06,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:42:06,363 INFO L93 Difference]: Finished difference Result 9258 states and 13331 transitions. [2022-07-12 13:42:06,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 13:42:06,379 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 202 [2022-07-12 13:42:06,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:42:06,416 INFO L225 Difference]: With dead ends: 9258 [2022-07-12 13:42:06,417 INFO L226 Difference]: Without dead ends: 9255 [2022-07-12 13:42:06,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 64 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 13:42:06,421 INFO L413 NwaCegarLoop]: 1036 mSDtfsCounter, 1263 mSDsluCounter, 1797 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 391 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1368 SdHoareTripleChecker+Valid, 2833 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 391 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-07-12 13:42:06,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1368 Valid, 2833 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [391 Valid, 812 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-07-12 13:42:06,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9255 states. [2022-07-12 13:42:06,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9255 to 7512. [2022-07-12 13:42:06,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7512 states, 5774 states have (on average 1.385694492552823) internal successors, (8001), 5853 states have internal predecessors, (8001), 1217 states have call successors, (1217), 521 states have call predecessors, (1217), 520 states have return successors, (1212), 1209 states have call predecessors, (1212), 1212 states have call successors, (1212) [2022-07-12 13:42:06,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7512 states to 7512 states and 10430 transitions. [2022-07-12 13:42:06,629 INFO L78 Accepts]: Start accepts. Automaton has 7512 states and 10430 transitions. Word has length 202 [2022-07-12 13:42:06,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:42:06,629 INFO L495 AbstractCegarLoop]: Abstraction has 7512 states and 10430 transitions. [2022-07-12 13:42:06,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 13:42:06,629 INFO L276 IsEmpty]: Start isEmpty. Operand 7512 states and 10430 transitions. [2022-07-12 13:42:06,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-07-12 13:42:06,632 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:42:06,632 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:06,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 13:42:06,632 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:42:06,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:42:06,632 INFO L85 PathProgramCache]: Analyzing trace with hash -659025101, now seen corresponding path program 1 times [2022-07-12 13:42:06,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:42:06,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830180973] [2022-07-12 13:42:06,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:42:06,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:42:06,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:06,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:42:06,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:06,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:06,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:06,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:06,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:06,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:42:06,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:06,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:06,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:06,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:06,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:06,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:42:06,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:06,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:06,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:06,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:06,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:42:06,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:06,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:06,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:06,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:06,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:06,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:42:06,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:06,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:06,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:06,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:06,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:06,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:42:06,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:06,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:06,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:06,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:06,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:06,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:42:06,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:07,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:07,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:07,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:07,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:07,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:42:07,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:07,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:07,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:07,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:07,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:07,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:42:07,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:07,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-12 13:42:07,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:07,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 13:42:07,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:07,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-12 13:42:07,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:07,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-12 13:42:07,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:07,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 13:42:07,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:07,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:07,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:07,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:07,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:07,110 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 554 trivial. 0 not checked. [2022-07-12 13:42:07,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:42:07,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830180973] [2022-07-12 13:42:07,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830180973] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:42:07,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:42:07,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:42:07,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775152092] [2022-07-12 13:42:07,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:42:07,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:42:07,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:42:07,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:42:07,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:42:07,112 INFO L87 Difference]: Start difference. First operand 7512 states and 10430 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 13:42:09,536 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:42:10,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:42:10,431 INFO L93 Difference]: Finished difference Result 9257 states and 13329 transitions. [2022-07-12 13:42:10,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 13:42:10,431 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 203 [2022-07-12 13:42:10,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:42:10,455 INFO L225 Difference]: With dead ends: 9257 [2022-07-12 13:42:10,456 INFO L226 Difference]: Without dead ends: 9254 [2022-07-12 13:42:10,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 64 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 13:42:10,460 INFO L413 NwaCegarLoop]: 1042 mSDtfsCounter, 1446 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 567 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1544 SdHoareTripleChecker+Valid, 1722 SdHoareTripleChecker+Invalid, 901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 567 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-12 13:42:10,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1544 Valid, 1722 Invalid, 901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [567 Valid, 333 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-07-12 13:42:10,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9254 states. [2022-07-12 13:42:10,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9254 to 7511. [2022-07-12 13:42:10,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7511 states, 5774 states have (on average 1.3855213023900244) internal successors, (8000), 5852 states have internal predecessors, (8000), 1216 states have call successors, (1216), 521 states have call predecessors, (1216), 520 states have return successors, (1212), 1209 states have call predecessors, (1212), 1212 states have call successors, (1212) [2022-07-12 13:42:10,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7511 states to 7511 states and 10428 transitions. [2022-07-12 13:42:10,692 INFO L78 Accepts]: Start accepts. Automaton has 7511 states and 10428 transitions. Word has length 203 [2022-07-12 13:42:10,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:42:10,692 INFO L495 AbstractCegarLoop]: Abstraction has 7511 states and 10428 transitions. [2022-07-12 13:42:10,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 13:42:10,693 INFO L276 IsEmpty]: Start isEmpty. Operand 7511 states and 10428 transitions. [2022-07-12 13:42:10,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-07-12 13:42:10,695 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:42:10,695 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:10,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 13:42:10,695 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:42:10,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:42:10,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1044893178, now seen corresponding path program 1 times [2022-07-12 13:42:10,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:42:10,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541381822] [2022-07-12 13:42:10,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:42:10,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:42:10,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:10,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:42:10,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:10,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:10,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:10,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:10,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:10,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:42:10,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:10,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:10,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:10,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:10,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:10,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:42:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:10,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:10,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:10,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:10,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:10,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:42:10,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:10,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:10,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:10,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:10,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:10,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:42:10,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:10,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:10,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:10,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:10,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:10,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:42:10,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:11,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:11,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:11,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:11,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:42:11,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:11,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:11,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:11,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:11,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:11,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:42:11,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:11,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:11,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:11,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:11,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:11,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:42:11,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:11,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-12 13:42:11,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:11,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 13:42:11,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:11,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-12 13:42:11,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:11,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-12 13:42:11,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:11,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 13:42:11,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:11,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:11,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:11,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:11,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:11,223 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 554 trivial. 0 not checked. [2022-07-12 13:42:11,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:42:11,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541381822] [2022-07-12 13:42:11,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541381822] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:42:11,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:42:11,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:42:11,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886326755] [2022-07-12 13:42:11,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:42:11,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:42:11,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:42:11,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:42:11,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:42:11,226 INFO L87 Difference]: Start difference. First operand 7511 states and 10428 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 13:42:13,744 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 13:42:15,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:42:15,584 INFO L93 Difference]: Finished difference Result 25390 states and 37230 transitions. [2022-07-12 13:42:15,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 13:42:15,585 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 204 [2022-07-12 13:42:15,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:42:15,639 INFO L225 Difference]: With dead ends: 25390 [2022-07-12 13:42:15,639 INFO L226 Difference]: Without dead ends: 17918 [2022-07-12 13:42:15,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 65 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 13:42:15,668 INFO L413 NwaCegarLoop]: 1327 mSDtfsCounter, 1767 mSDsluCounter, 1736 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 940 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1876 SdHoareTripleChecker+Valid, 3063 SdHoareTripleChecker+Invalid, 1671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 940 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-07-12 13:42:15,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1876 Valid, 3063 Invalid, 1671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [940 Valid, 730 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-07-12 13:42:15,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17918 states. [2022-07-12 13:42:16,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17918 to 14221. [2022-07-12 13:42:16,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14221 states, 10923 states have (on average 1.384601300009155) internal successors, (15124), 11124 states have internal predecessors, (15124), 2318 states have call successors, (2318), 941 states have call predecessors, (2318), 979 states have return successors, (2753), 2299 states have call predecessors, (2753), 2313 states have call successors, (2753) [2022-07-12 13:42:16,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14221 states to 14221 states and 20195 transitions. [2022-07-12 13:42:16,186 INFO L78 Accepts]: Start accepts. Automaton has 14221 states and 20195 transitions. Word has length 204 [2022-07-12 13:42:16,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:42:16,188 INFO L495 AbstractCegarLoop]: Abstraction has 14221 states and 20195 transitions. [2022-07-12 13:42:16,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 13:42:16,188 INFO L276 IsEmpty]: Start isEmpty. Operand 14221 states and 20195 transitions. [2022-07-12 13:42:16,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-07-12 13:42:16,192 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:42:16,192 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:42:16,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 13:42:16,192 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:42:16,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:42:16,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1592347063, now seen corresponding path program 1 times [2022-07-12 13:42:16,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:42:16,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914333197] [2022-07-12 13:42:16,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:42:16,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:42:16,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:42:16,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:16,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:16,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:42:16,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:16,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:16,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:42:16,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:16,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:42:16,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:16,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:16,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:42:16,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:16,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:16,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:42:16,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:16,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:16,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:42:16,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:16,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:16,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:42:16,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:16,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:16,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:42:16,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-12 13:42:16,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 13:42:16,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-12 13:42:16,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-12 13:42:16,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 13:42:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:16,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:16,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-07-12 13:42:16,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:16,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:16,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-12 13:42:16,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:16,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:16,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-07-12 13:42:16,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:16,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:16,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-12 13:42:16,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:16,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:16,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-07-12 13:42:16,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-07-12 13:42:16,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:16,804 INFO L134 CoverageAnalysis]: Checked inductivity of 1144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1144 trivial. 0 not checked. [2022-07-12 13:42:16,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:42:16,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914333197] [2022-07-12 13:42:16,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914333197] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:42:16,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:42:16,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 13:42:16,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325559513] [2022-07-12 13:42:16,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:42:16,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 13:42:16,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:42:16,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 13:42:16,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 13:42:16,807 INFO L87 Difference]: Start difference. First operand 14221 states and 20195 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (25), 7 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-12 13:42:19,624 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 13:42:20,895 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:42:23,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:42:23,945 INFO L93 Difference]: Finished difference Result 17002 states and 25003 transitions. [2022-07-12 13:42:23,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 13:42:23,945 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (25), 7 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 290 [2022-07-12 13:42:23,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:42:23,992 INFO L225 Difference]: With dead ends: 17002 [2022-07-12 13:42:23,992 INFO L226 Difference]: Without dead ends: 16999 [2022-07-12 13:42:24,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 94 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-07-12 13:42:24,001 INFO L413 NwaCegarLoop]: 1074 mSDtfsCounter, 937 mSDsluCounter, 2231 mSDsCounter, 0 mSdLazyCounter, 2169 mSolverCounterSat, 630 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 3305 SdHoareTripleChecker+Invalid, 2800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 630 IncrementalHoareTripleChecker+Valid, 2169 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-07-12 13:42:24,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [991 Valid, 3305 Invalid, 2800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [630 Valid, 2169 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-07-12 13:42:24,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16999 states. [2022-07-12 13:42:24,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16999 to 14332. [2022-07-12 13:42:24,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14332 states, 11003 states have (on average 1.380714350631646) internal successors, (15192), 11235 states have internal predecessors, (15192), 2317 states have call successors, (2317), 941 states have call predecessors, (2317), 1011 states have return successors, (2849), 2299 states have call predecessors, (2849), 2313 states have call successors, (2849) [2022-07-12 13:42:24,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14332 states to 14332 states and 20358 transitions. [2022-07-12 13:42:24,552 INFO L78 Accepts]: Start accepts. Automaton has 14332 states and 20358 transitions. Word has length 290 [2022-07-12 13:42:24,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:42:24,552 INFO L495 AbstractCegarLoop]: Abstraction has 14332 states and 20358 transitions. [2022-07-12 13:42:24,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (25), 7 states have call predecessors, (25), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-12 13:42:24,553 INFO L276 IsEmpty]: Start isEmpty. Operand 14332 states and 20358 transitions. [2022-07-12 13:42:24,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2022-07-12 13:42:24,568 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:42:24,568 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 5, 5, 5, 5, 3, 3, 3, 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] [2022-07-12 13:42:24,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 13:42:24,569 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:42:24,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:42:24,569 INFO L85 PathProgramCache]: Analyzing trace with hash 297028222, now seen corresponding path program 1 times [2022-07-12 13:42:24,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:42:24,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345936999] [2022-07-12 13:42:24,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:42:24,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:42:24,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:42:24,749 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 1 [2022-07-12 13:42:24,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:24,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:42:24,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:24,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:24,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:42:24,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:24,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:24,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:42:24,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:24,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:24,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:42:24,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:24,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:24,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:42:24,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:24,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:24,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:42:24,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:24,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:24,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:42:24,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:24,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:24,942 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 131 [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 138 [2022-07-12 13:42:24,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 13:42:24,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-12 13:42:24,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:24,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-12 13:42:24,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:25,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 13:42:25,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:25,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:25,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:25,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:25,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:25,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-07-12 13:42:25,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:25,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:25,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:25,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:25,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:25,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-12 13:42:25,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:25,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:25,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:25,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:25,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-07-12 13:42:25,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:25,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:25,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:25,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:25,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:25,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-12 13:42:25,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:25,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:25,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:25,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:25,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:25,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2022-07-12 13:42:25,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:25,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:25,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:25,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-12 13:42:25,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:25,199 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1146 trivial. 0 not checked. [2022-07-12 13:42:25,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:42:25,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345936999] [2022-07-12 13:42:25,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345936999] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:42:25,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:42:25,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 13:42:25,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760860535] [2022-07-12 13:42:25,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:42:25,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 13:42:25,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:42:25,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 13:42:25,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-07-12 13:42:25,201 INFO L87 Difference]: Start difference. First operand 14332 states and 20358 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (24), 6 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2022-07-12 13:42:26,985 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:42:29,000 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:42:31,016 WARN L534 Checker$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 13:42:33,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:42:33,299 INFO L93 Difference]: Finished difference Result 25682 states and 37415 transitions. [2022-07-12 13:42:33,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 13:42:33,300 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (24), 6 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) Word has length 323 [2022-07-12 13:42:33,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:42:33,332 INFO L225 Difference]: With dead ends: 25682 [2022-07-12 13:42:33,333 INFO L226 Difference]: Without dead ends: 11398 [2022-07-12 13:42:33,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2022-07-12 13:42:33,370 INFO L413 NwaCegarLoop]: 1022 mSDtfsCounter, 625 mSDsluCounter, 4197 mSDsCounter, 0 mSdLazyCounter, 1779 mSolverCounterSat, 554 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 5219 SdHoareTripleChecker+Invalid, 2335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 554 IncrementalHoareTripleChecker+Valid, 1779 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-07-12 13:42:33,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [643 Valid, 5219 Invalid, 2335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [554 Valid, 1779 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-07-12 13:42:33,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11398 states. [2022-07-12 13:42:33,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11398 to 8079. [2022-07-12 13:42:33,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8079 states, 6197 states have (on average 1.3730837502017106) internal successors, (8509), 6280 states have internal predecessors, (8509), 1334 states have call successors, (1334), 549 states have call predecessors, (1334), 547 states have return successors, (1332), 1321 states have call predecessors, (1332), 1332 states have call successors, (1332) [2022-07-12 13:42:33,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8079 states to 8079 states and 11175 transitions. [2022-07-12 13:42:33,833 INFO L78 Accepts]: Start accepts. Automaton has 8079 states and 11175 transitions. Word has length 323 [2022-07-12 13:42:33,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:42:33,834 INFO L495 AbstractCegarLoop]: Abstraction has 8079 states and 11175 transitions. [2022-07-12 13:42:33,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (24), 6 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2022-07-12 13:42:33,834 INFO L276 IsEmpty]: Start isEmpty. Operand 8079 states and 11175 transitions. [2022-07-12 13:42:33,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2022-07-12 13:42:33,854 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:42:33,854 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:42:33,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 13:42:33,854 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:42:33,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:42:33,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1170172836, now seen corresponding path program 1 times [2022-07-12 13:42:33,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:42:33,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565068749] [2022-07-12 13:42:33,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:42:33,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:42:33,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:42:34,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:34,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:34,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:42:34,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:34,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:34,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:42:34,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:34,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:34,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:42:34,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:34,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:34,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:42:34,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:34,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:34,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:42:34,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:34,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:34,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:42:34,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:34,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:34,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:42:34,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:34,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:34,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [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 138 [2022-07-12 13:42:34,269 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 145 [2022-07-12 13:42:34,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-12 13:42:34,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-12 13:42:34,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 13:42:34,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:34,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:34,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-07-12 13:42:34,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:34,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:34,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-12 13:42:34,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:34,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:34,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-07-12 13:42:34,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:34,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:34,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-12 13:42:34,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:34,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:34,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-07-12 13:42:34,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-07-12 13:42:34,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-07-12 13:42:34,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-07-12 13:42:34,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2022-07-12 13:42:34,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-07-12 13:42:34,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:34,515 INFO L134 CoverageAnalysis]: Checked inductivity of 1152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1152 trivial. 0 not checked. [2022-07-12 13:42:34,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:42:34,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565068749] [2022-07-12 13:42:34,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565068749] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:42:34,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:42:34,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 13:42:34,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411937594] [2022-07-12 13:42:34,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:42:34,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 13:42:34,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:42:34,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 13:42:34,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 13:42:34,517 INFO L87 Difference]: Start difference. First operand 8079 states and 11175 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-12 13:42:37,166 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:42:39,180 WARN L534 Checker$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 13:42:40,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:42:40,912 INFO L93 Difference]: Finished difference Result 19733 states and 28232 transitions. [2022-07-12 13:42:40,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 13:42:40,912 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 340 [2022-07-12 13:42:40,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:42:40,949 INFO L225 Difference]: With dead ends: 19733 [2022-07-12 13:42:40,949 INFO L226 Difference]: Without dead ends: 11702 [2022-07-12 13:42:41,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-07-12 13:42:41,018 INFO L413 NwaCegarLoop]: 1022 mSDtfsCounter, 636 mSDsluCounter, 2851 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 442 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 3873 SdHoareTripleChecker+Invalid, 1558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 442 IncrementalHoareTripleChecker+Valid, 1114 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-07-12 13:42:41,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 3873 Invalid, 1558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [442 Valid, 1114 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-07-12 13:42:41,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11702 states. [2022-07-12 13:42:41,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11702 to 8567. [2022-07-12 13:42:41,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8567 states, 6573 states have (on average 1.3712155788833105) internal successors, (9013), 6656 states have internal predecessors, (9013), 1438 states have call successors, (1438), 557 states have call predecessors, (1438), 555 states have return successors, (1436), 1425 states have call predecessors, (1436), 1436 states have call successors, (1436) [2022-07-12 13:42:41,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8567 states to 8567 states and 11887 transitions. [2022-07-12 13:42:41,368 INFO L78 Accepts]: Start accepts. Automaton has 8567 states and 11887 transitions. Word has length 340 [2022-07-12 13:42:41,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:42:41,368 INFO L495 AbstractCegarLoop]: Abstraction has 8567 states and 11887 transitions. [2022-07-12 13:42:41,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-12 13:42:41,369 INFO L276 IsEmpty]: Start isEmpty. Operand 8567 states and 11887 transitions. [2022-07-12 13:42:41,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2022-07-12 13:42:41,387 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:42:41,387 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:42:41,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-12 13:42:41,387 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:42:41,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:42:41,388 INFO L85 PathProgramCache]: Analyzing trace with hash -922026342, now seen corresponding path program 1 times [2022-07-12 13:42:41,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:42:41,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598905392] [2022-07-12 13:42:41,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:42:41,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:42:41,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:42:41,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:41,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:41,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:42:41,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:41,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:41,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:42:41,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:41,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:41,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:42:41,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:41,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:41,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:42:41,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:41,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:41,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:42:41,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:41,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:41,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:42:41,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:41,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:41,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:42:41,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:41,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:41,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:42:41,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-12 13:42:41,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 13:42:41,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-12 13:42:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-12 13:42:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 13:42:41,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:41,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:41,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-07-12 13:42:41,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:41,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:41,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-12 13:42:41,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:41,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:41,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-07-12 13:42:41,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:41,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:41,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:42,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:42,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-12 13:42:42,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:42,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:42,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:42,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:42,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:42,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-07-12 13:42:42,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:42,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-07-12 13:42:42,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:42,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-07-12 13:42:42,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:42,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-07-12 13:42:42,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:42,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2022-07-12 13:42:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:42,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-07-12 13:42:42,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:42,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1152 trivial. 0 not checked. [2022-07-12 13:42:42,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:42:42,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598905392] [2022-07-12 13:42:42,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598905392] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:42:42,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:42:42,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 13:42:42,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018527944] [2022-07-12 13:42:42,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:42:42,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 13:42:42,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:42:42,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 13:42:42,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 13:42:42,079 INFO L87 Difference]: Start difference. First operand 8567 states and 11887 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-12 13:42:44,803 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 13:42:46,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:42:46,525 INFO L93 Difference]: Finished difference Result 20221 states and 28912 transitions. [2022-07-12 13:42:46,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 13:42:46,526 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 340 [2022-07-12 13:42:46,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:42:46,550 INFO L225 Difference]: With dead ends: 20221 [2022-07-12 13:42:46,551 INFO L226 Difference]: Without dead ends: 11702 [2022-07-12 13:42:46,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-07-12 13:42:46,565 INFO L413 NwaCegarLoop]: 1033 mSDtfsCounter, 481 mSDsluCounter, 2949 mSDsCounter, 0 mSdLazyCounter, 1143 mSolverCounterSat, 384 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 3982 SdHoareTripleChecker+Invalid, 1528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 384 IncrementalHoareTripleChecker+Valid, 1143 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-07-12 13:42:46,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 3982 Invalid, 1528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [384 Valid, 1143 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-07-12 13:42:46,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11702 states. [2022-07-12 13:42:46,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11702 to 8759. [2022-07-12 13:42:46,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8759 states, 6725 states have (on average 1.3687732342007435) internal successors, (9205), 6808 states have internal predecessors, (9205), 1478 states have call successors, (1478), 557 states have call predecessors, (1478), 555 states have return successors, (1476), 1465 states have call predecessors, (1476), 1476 states have call successors, (1476) [2022-07-12 13:42:46,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8759 states to 8759 states and 12159 transitions. [2022-07-12 13:42:46,955 INFO L78 Accepts]: Start accepts. Automaton has 8759 states and 12159 transitions. Word has length 340 [2022-07-12 13:42:46,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:42:46,956 INFO L495 AbstractCegarLoop]: Abstraction has 8759 states and 12159 transitions. [2022-07-12 13:42:46,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-12 13:42:46,956 INFO L276 IsEmpty]: Start isEmpty. Operand 8759 states and 12159 transitions. [2022-07-12 13:42:46,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2022-07-12 13:42:46,973 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:42:46,973 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:42:46,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-12 13:42:46,974 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:42:46,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:42:46,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1353442894, now seen corresponding path program 1 times [2022-07-12 13:42:46,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:42:46,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339699515] [2022-07-12 13:42:46,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:42:46,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:42:47,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:42:47,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:47,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:47,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:42:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:47,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:47,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:42:47,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:47,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:47,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:42:47,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:47,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:42:47,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:47,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:47,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:42:47,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:47,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:47,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:42:47,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:47,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:47,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:42:47,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:47,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:47,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:42:47,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-12 13:42:47,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 13:42:47,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-12 13:42:47,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-12 13:42:47,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 13:42:47,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:47,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:47,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-07-12 13:42:47,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:47,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:47,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-12 13:42:47,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:47,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:47,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-07-12 13:42:47,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:47,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:47,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-12 13:42:47,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:47,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:47,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-07-12 13:42:47,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-07-12 13:42:47,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-07-12 13:42:47,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-12 13:42:47,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-07-12 13:42:47,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-07-12 13:42:47,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-07-12 13:42:47,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-07-12 13:42:47,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:47,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1152 trivial. 0 not checked. [2022-07-12 13:42:47,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:42:47,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339699515] [2022-07-12 13:42:47,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339699515] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:42:47,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:42:47,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 13:42:47,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29391693] [2022-07-12 13:42:47,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:42:47,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 13:42:47,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:42:47,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 13:42:47,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-12 13:42:47,567 INFO L87 Difference]: Start difference. First operand 8759 states and 12159 transitions. Second operand has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 4 states have internal predecessors, (104), 4 states have call successors, (32), 7 states have call predecessors, (32), 1 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-07-12 13:42:50,245 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 13:42:52,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:42:52,488 INFO L93 Difference]: Finished difference Result 21449 states and 30634 transitions. [2022-07-12 13:42:52,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 13:42:52,491 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 4 states have internal predecessors, (104), 4 states have call successors, (32), 7 states have call predecessors, (32), 1 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 343 [2022-07-12 13:42:52,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:42:52,524 INFO L225 Difference]: With dead ends: 21449 [2022-07-12 13:42:52,524 INFO L226 Difference]: Without dead ends: 12738 [2022-07-12 13:42:52,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2022-07-12 13:42:52,540 INFO L413 NwaCegarLoop]: 1038 mSDtfsCounter, 995 mSDsluCounter, 2657 mSDsCounter, 0 mSdLazyCounter, 2353 mSolverCounterSat, 798 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1039 SdHoareTripleChecker+Valid, 3695 SdHoareTripleChecker+Invalid, 3152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 798 IncrementalHoareTripleChecker+Valid, 2353 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-07-12 13:42:52,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1039 Valid, 3695 Invalid, 3152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [798 Valid, 2353 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-07-12 13:42:52,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12738 states. [2022-07-12 13:42:52,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12738 to 9240. [2022-07-12 13:42:52,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9240 states, 7094 states have (on average 1.3676346208063153) internal successors, (9702), 7177 states have internal predecessors, (9702), 1582 states have call successors, (1582), 565 states have call predecessors, (1582), 563 states have return successors, (1580), 1569 states have call predecessors, (1580), 1580 states have call successors, (1580) [2022-07-12 13:42:52,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9240 states to 9240 states and 12864 transitions. [2022-07-12 13:42:52,961 INFO L78 Accepts]: Start accepts. Automaton has 9240 states and 12864 transitions. Word has length 343 [2022-07-12 13:42:52,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:42:52,961 INFO L495 AbstractCegarLoop]: Abstraction has 9240 states and 12864 transitions. [2022-07-12 13:42:52,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 4 states have internal predecessors, (104), 4 states have call successors, (32), 7 states have call predecessors, (32), 1 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-07-12 13:42:52,962 INFO L276 IsEmpty]: Start isEmpty. Operand 9240 states and 12864 transitions. [2022-07-12 13:42:52,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2022-07-12 13:42:52,986 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:42:52,986 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:42:52,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-12 13:42:52,986 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:42:52,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:42:52,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1105296400, now seen corresponding path program 1 times [2022-07-12 13:42:52,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:42:52,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187946379] [2022-07-12 13:42:52,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:42:52,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:42:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:42:53,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:53,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:53,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:42:53,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:53,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:53,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:42:53,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:53,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:53,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:42:53,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:53,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:53,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:42:53,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:53,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:53,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:42:53,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:53,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:53,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:42:53,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:53,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:53,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:42:53,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:53,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:53,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:42:53,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-12 13:42:53,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 13:42:53,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-12 13:42:53,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-12 13:42:53,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 13:42:53,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:53,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:53,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-07-12 13:42:53,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:53,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:53,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-12 13:42:53,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:53,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:53,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-07-12 13:42:53,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:53,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:53,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-12 13:42:53,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:53,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:53,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-07-12 13:42:53,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-07-12 13:42:53,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-07-12 13:42:53,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-12 13:42:53,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-07-12 13:42:53,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-07-12 13:42:53,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-07-12 13:42:53,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-07-12 13:42:53,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:53,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1152 trivial. 0 not checked. [2022-07-12 13:42:53,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:42:53,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187946379] [2022-07-12 13:42:53,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187946379] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:42:53,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:42:53,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 13:42:53,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195903128] [2022-07-12 13:42:53,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:42:53,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 13:42:53,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:42:53,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 13:42:53,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-12 13:42:53,634 INFO L87 Difference]: Start difference. First operand 9240 states and 12864 transitions. Second operand has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 4 states have internal predecessors, (104), 4 states have call successors, (32), 7 states have call predecessors, (32), 1 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-07-12 13:42:56,623 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 13:42:59,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:42:59,122 INFO L93 Difference]: Finished difference Result 21946 states and 31369 transitions. [2022-07-12 13:42:59,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 13:42:59,124 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 4 states have internal predecessors, (104), 4 states have call successors, (32), 7 states have call predecessors, (32), 1 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 343 [2022-07-12 13:42:59,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:42:59,152 INFO L225 Difference]: With dead ends: 21946 [2022-07-12 13:42:59,153 INFO L226 Difference]: Without dead ends: 12754 [2022-07-12 13:42:59,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2022-07-12 13:42:59,170 INFO L413 NwaCegarLoop]: 1002 mSDtfsCounter, 849 mSDsluCounter, 3052 mSDsCounter, 0 mSdLazyCounter, 2736 mSolverCounterSat, 625 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 893 SdHoareTripleChecker+Valid, 4054 SdHoareTripleChecker+Invalid, 3362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 625 IncrementalHoareTripleChecker+Valid, 2736 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-07-12 13:42:59,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [893 Valid, 4054 Invalid, 3362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [625 Valid, 2736 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-07-12 13:42:59,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12754 states. [2022-07-12 13:42:59,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12754 to 9264. [2022-07-12 13:42:59,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9264 states, 7113 states have (on average 1.364403205398566) internal successors, (9705), 7196 states have internal predecessors, (9705), 1587 states have call successors, (1587), 565 states have call predecessors, (1587), 563 states have return successors, (1585), 1574 states have call predecessors, (1585), 1585 states have call successors, (1585) [2022-07-12 13:42:59,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9264 states to 9264 states and 12877 transitions. [2022-07-12 13:42:59,632 INFO L78 Accepts]: Start accepts. Automaton has 9264 states and 12877 transitions. Word has length 343 [2022-07-12 13:42:59,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:42:59,632 INFO L495 AbstractCegarLoop]: Abstraction has 9264 states and 12877 transitions. [2022-07-12 13:42:59,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 4 states have internal predecessors, (104), 4 states have call successors, (32), 7 states have call predecessors, (32), 1 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-07-12 13:42:59,633 INFO L276 IsEmpty]: Start isEmpty. Operand 9264 states and 12877 transitions. [2022-07-12 13:42:59,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2022-07-12 13:42:59,652 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:42:59,652 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:42:59,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-12 13:42:59,653 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:42:59,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:42:59,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1874325375, now seen corresponding path program 1 times [2022-07-12 13:42:59,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:42:59,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118299462] [2022-07-12 13:42:59,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:42:59,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:42:59,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:59,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:42:59,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:59,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:59,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:59,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:59,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:59,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:42:59,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:59,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:59,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:59,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:59,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:59,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:42:59,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:59,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:59,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:59,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:59,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:59,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:42:59,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:59,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:59,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:59,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:59,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:59,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:42:59,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:59,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:59,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:59,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:59,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:59,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:42:59,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:59,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:59,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:59,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:59,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:59,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:42:59,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:59,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:59,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:59,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:59,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:59,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:42:59,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:59,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:42:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:59,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:42:59,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:59,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:42:59,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:42:59,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-12 13:43:00,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:00,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 13:43:00,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:00,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-12 13:43:00,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:00,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-12 13:43:00,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:00,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 13:43:00,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:00,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:43:00,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:00,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:43:00,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:00,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-07-12 13:43:00,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:00,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:43:00,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:00,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:43:00,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:00,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-12 13:43:00,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:00,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:43:00,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:00,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:43:00,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:00,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-07-12 13:43:00,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:00,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:43:00,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:00,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:43:00,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:00,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-12 13:43:00,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:00,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:43:00,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:00,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:43:00,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:00,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-07-12 13:43:00,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:00,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-07-12 13:43:00,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:00,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-07-12 13:43:00,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:00,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-07-12 13:43:00,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:00,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2022-07-12 13:43:00,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:00,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-07-12 13:43:00,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:00,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-07-12 13:43:00,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:00,283 INFO L134 CoverageAnalysis]: Checked inductivity of 1157 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1157 trivial. 0 not checked. [2022-07-12 13:43:00,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:43:00,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118299462] [2022-07-12 13:43:00,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118299462] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:43:00,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:43:00,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:43:00,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533521154] [2022-07-12 13:43:00,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:43:00,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:43:00,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:43:00,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:43:00,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:43:00,286 INFO L87 Difference]: Start difference. First operand 9264 states and 12877 transitions. Second operand has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (31), 6 states have call predecessors, (31), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-12 13:43:02,175 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:43:04,190 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:43:06,204 WARN L534 Checker$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 13:43:08,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:43:08,058 INFO L93 Difference]: Finished difference Result 12677 states and 18335 transitions. [2022-07-12 13:43:08,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 13:43:08,059 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (31), 6 states have call predecessors, (31), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 347 [2022-07-12 13:43:08,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:43:08,103 INFO L225 Difference]: With dead ends: 12677 [2022-07-12 13:43:08,103 INFO L226 Difference]: Without dead ends: 12674 [2022-07-12 13:43:08,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-12 13:43:08,112 INFO L413 NwaCegarLoop]: 1029 mSDtfsCounter, 380 mSDsluCounter, 2596 mSDsCounter, 0 mSdLazyCounter, 1115 mSolverCounterSat, 326 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 3625 SdHoareTripleChecker+Invalid, 1443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 326 IncrementalHoareTripleChecker+Valid, 1115 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-07-12 13:43:08,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 3625 Invalid, 1443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [326 Valid, 1115 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-07-12 13:43:08,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12674 states. [2022-07-12 13:43:08,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12674 to 9264. [2022-07-12 13:43:08,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9264 states, 7113 states have (on average 1.361310276957683) internal successors, (9683), 7196 states have internal predecessors, (9683), 1587 states have call successors, (1587), 565 states have call predecessors, (1587), 563 states have return successors, (1585), 1574 states have call predecessors, (1585), 1585 states have call successors, (1585) [2022-07-12 13:43:08,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9264 states to 9264 states and 12855 transitions. [2022-07-12 13:43:08,634 INFO L78 Accepts]: Start accepts. Automaton has 9264 states and 12855 transitions. Word has length 347 [2022-07-12 13:43:08,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:43:08,634 INFO L495 AbstractCegarLoop]: Abstraction has 9264 states and 12855 transitions. [2022-07-12 13:43:08,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (31), 6 states have call predecessors, (31), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-12 13:43:08,635 INFO L276 IsEmpty]: Start isEmpty. Operand 9264 states and 12855 transitions. [2022-07-12 13:43:08,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2022-07-12 13:43:08,650 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:43:08,651 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:43:08,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-12 13:43:08,651 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:43:08,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:43:08,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1976741247, now seen corresponding path program 1 times [2022-07-12 13:43:08,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:43:08,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216953301] [2022-07-12 13:43:08,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:43:08,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:43:08,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:08,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:43:08,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:08,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:43:08,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:08,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:43:08,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:08,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:43:08,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:08,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:43:08,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:08,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:43:08,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:08,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:43:08,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:08,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:43:08,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:08,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:43:08,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:08,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:43:08,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:08,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:43:08,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:08,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:43:08,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:08,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:43:08,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:08,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:43:08,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:08,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:43:08,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:08,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:43:08,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:08,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:43:08,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:08,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:43:08,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:08,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:43:08,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:08,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:43:08,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:08,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:43:08,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:08,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:43:08,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:09,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:43:09,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:09,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:43:09,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:09,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:43:09,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:09,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-12 13:43:09,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:09,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 13:43:09,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:09,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-12 13:43:09,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:09,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-12 13:43:09,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:09,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 13:43:09,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:09,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:43:09,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:09,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:43:09,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:09,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-07-12 13:43:09,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:09,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:43:09,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:09,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:43:09,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:09,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-12 13:43:09,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:09,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:43:09,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:09,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:43:09,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:09,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-07-12 13:43:09,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:09,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:43:09,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:09,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:43:09,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:09,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-12 13:43:09,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:09,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:43:09,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:09,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:43:09,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:09,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-07-12 13:43:09,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:09,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-07-12 13:43:09,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:09,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-07-12 13:43:09,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:09,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-07-12 13:43:09,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:09,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2022-07-12 13:43:09,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:09,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-07-12 13:43:09,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:09,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-07-12 13:43:09,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:43:09,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1157 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1157 trivial. 0 not checked. [2022-07-12 13:43:09,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:43:09,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216953301] [2022-07-12 13:43:09,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216953301] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:43:09,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:43:09,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 13:43:09,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317003274] [2022-07-12 13:43:09,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:43:09,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 13:43:09,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:43:09,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 13:43:09,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-12 13:43:09,227 INFO L87 Difference]: Start difference. First operand 9264 states and 12855 transitions. Second operand has 8 states, 8 states have (on average 13.25) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-12 13:43:12,893 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 13:43:14,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:43:14,957 INFO L93 Difference]: Finished difference Result 12276 states and 17594 transitions. [2022-07-12 13:43:14,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 13:43:14,958 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 347 [2022-07-12 13:43:14,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:43:14,959 INFO L225 Difference]: With dead ends: 12276 [2022-07-12 13:43:14,959 INFO L226 Difference]: Without dead ends: 0 [2022-07-12 13:43:14,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-07-12 13:43:14,976 INFO L413 NwaCegarLoop]: 1016 mSDtfsCounter, 289 mSDsluCounter, 4242 mSDsCounter, 0 mSdLazyCounter, 1576 mSolverCounterSat, 295 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 5258 SdHoareTripleChecker+Invalid, 1872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 1576 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-07-12 13:43:14,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 5258 Invalid, 1872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [295 Valid, 1576 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-07-12 13:43:14,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-12 13:43:14,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-12 13:43:14,977 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 13:43:14,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-12 13:43:14,979 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 347 [2022-07-12 13:43:14,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:43:14,979 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-12 13:43:14,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-12 13:43:14,979 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-12 13:43:14,980 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-12 13:43:14,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 13:43:14,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-12 13:43:14,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-12 13:44:09,638 WARN L233 SmtUtils]: Spent 54.50s on a formula simplification. DAG size of input: 121 DAG size of output: 115 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)