./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--usb--hso.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--usb--hso.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 aaa391796caf9ffd02d820d63142c08953b50843acf6dbe45cefeca4ae26da3b --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 00:33:00,646 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 00:33:00,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 00:33:00,710 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 00:33:00,713 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 00:33:00,714 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 00:33:00,716 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 00:33:00,720 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 00:33:00,722 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 00:33:00,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 00:33:00,726 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 00:33:00,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 00:33:00,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 00:33:00,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 00:33:00,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 00:33:00,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 00:33:00,736 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 00:33:00,737 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 00:33:00,739 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 00:33:00,741 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 00:33:00,743 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 00:33:00,745 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 00:33:00,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 00:33:00,746 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 00:33:00,748 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 00:33:00,756 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 00:33:00,759 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 00:33:00,760 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 00:33:00,761 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 00:33:00,762 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 00:33:00,762 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 00:33:00,763 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 00:33:00,764 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 00:33:00,765 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 00:33:00,765 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 00:33:00,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 00:33:00,767 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 00:33:00,768 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 00:33:00,768 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 00:33:00,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 00:33:00,769 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 00:33:00,771 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 00:33:00,772 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 00:33:00,797 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 00:33:00,802 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 00:33:00,802 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 00:33:00,803 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 00:33:00,803 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 00:33:00,803 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 00:33:00,804 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 00:33:00,804 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 00:33:00,805 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 00:33:00,805 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 00:33:00,806 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 00:33:00,806 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 00:33:00,806 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 00:33:00,806 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 00:33:00,806 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 00:33:00,806 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 00:33:00,807 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 00:33:00,807 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 00:33:00,807 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 00:33:00,808 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 00:33:00,808 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 00:33:00,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:33:00,809 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 00:33:00,809 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 00:33:00,809 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 00:33:00,809 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 00:33:00,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 00:33:00,810 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 00:33:00,810 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 00:33:00,810 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 00:33:00,810 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aaa391796caf9ffd02d820d63142c08953b50843acf6dbe45cefeca4ae26da3b [2022-07-14 00:33:01,018 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 00:33:01,038 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 00:33:01,041 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 00:33:01,042 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 00:33:01,042 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 00:33:01,044 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--usb--hso.ko-entry_point.cil.out.i [2022-07-14 00:33:01,101 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7e2e29eb/d2b96392192e4504a0c709a2fcff8d46/FLAG6b810786b [2022-07-14 00:33:01,793 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 00:33:01,794 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--usb--hso.ko-entry_point.cil.out.i [2022-07-14 00:33:01,837 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7e2e29eb/d2b96392192e4504a0c709a2fcff8d46/FLAG6b810786b [2022-07-14 00:33:02,118 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7e2e29eb/d2b96392192e4504a0c709a2fcff8d46 [2022-07-14 00:33:02,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 00:33:02,122 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 00:33:02,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 00:33:02,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 00:33:02,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 00:33:02,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:33:02" (1/1) ... [2022-07-14 00:33:02,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68933b53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:33:02, skipping insertion in model container [2022-07-14 00:33:02,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:33:02" (1/1) ... [2022-07-14 00:33:02,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 00:33:02,257 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:33:02,776 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5977] [2022-07-14 00:33:02,777 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5978-5979] [2022-07-14 00:33:03,224 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--usb--hso.ko-entry_point.cil.out.i[185445,185458] [2022-07-14 00:33:04,322 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:33:04,375 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 00:33:04,527 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5977] [2022-07-14 00:33:04,529 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5978-5979] [2022-07-14 00:33:04,541 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--usb--hso.ko-entry_point.cil.out.i[185445,185458] [2022-07-14 00:33:04,873 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:33:05,008 INFO L208 MainTranslator]: Completed translation [2022-07-14 00:33:05,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:33:05 WrapperNode [2022-07-14 00:33:05,009 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 00:33:05,010 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 00:33:05,010 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 00:33:05,010 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 00:33:05,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:33:05" (1/1) ... [2022-07-14 00:33:05,122 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:33:05" (1/1) ... [2022-07-14 00:33:05,366 INFO L137 Inliner]: procedures = 324, calls = 3022, calls flagged for inlining = 155, calls inlined = 152, statements flattened = 6316 [2022-07-14 00:33:05,367 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 00:33:05,368 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 00:33:05,368 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 00:33:05,368 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 00:33:05,375 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:33:05" (1/1) ... [2022-07-14 00:33:05,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:33:05" (1/1) ... [2022-07-14 00:33:05,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:33:05" (1/1) ... [2022-07-14 00:33:05,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:33:05" (1/1) ... [2022-07-14 00:33:05,560 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:33:05" (1/1) ... [2022-07-14 00:33:05,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:33:05" (1/1) ... [2022-07-14 00:33:05,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:33:05" (1/1) ... [2022-07-14 00:33:05,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 00:33:05,662 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 00:33:05,662 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 00:33:05,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 00:33:05,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:33:05" (1/1) ... [2022-07-14 00:33:05,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:33:05,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:33:05,692 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) [2022-07-14 00:33:05,715 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 [2022-07-14 00:33:05,734 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-07-14 00:33:05,735 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-07-14 00:33:05,735 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-07-14 00:33:05,735 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-07-14 00:33:05,735 INFO L130 BoogieDeclarations]: Found specification of procedure hso_start_serial_device [2022-07-14 00:33:05,735 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_start_serial_device [2022-07-14 00:33:05,735 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-07-14 00:33:05,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 00:33:05,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 00:33:05,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 00:33:05,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 00:33:05,736 INFO L130 BoogieDeclarations]: Found specification of procedure tty_kref_put [2022-07-14 00:33:05,736 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_kref_put [2022-07-14 00:33:05,736 INFO L130 BoogieDeclarations]: Found specification of procedure mux_device_request [2022-07-14 00:33:05,737 INFO L138 BoogieDeclarations]: Found implementation of procedure mux_device_request [2022-07-14 00:33:05,737 INFO L130 BoogieDeclarations]: Found specification of procedure hso_unthrottle [2022-07-14 00:33:05,737 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_unthrottle [2022-07-14 00:33:05,737 INFO L130 BoogieDeclarations]: Found specification of procedure hso_get_ep [2022-07-14 00:33:05,737 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_get_ep [2022-07-14 00:33:05,737 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2022-07-14 00:33:05,737 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2022-07-14 00:33:05,738 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-14 00:33:05,738 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-14 00:33:05,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-14 00:33:05,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-14 00:33:05,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 00:33:05,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 00:33:05,739 INFO L130 BoogieDeclarations]: Found specification of procedure hso_kick_transmit [2022-07-14 00:33:05,739 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_kick_transmit [2022-07-14 00:33:05,739 INFO L130 BoogieDeclarations]: Found specification of procedure hso_get_activity [2022-07-14 00:33:05,739 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_get_activity [2022-07-14 00:33:05,739 INFO L130 BoogieDeclarations]: Found specification of procedure fix_crc_bug [2022-07-14 00:33:05,740 INFO L138 BoogieDeclarations]: Found implementation of procedure fix_crc_bug [2022-07-14 00:33:05,740 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2022-07-14 00:33:05,740 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2022-07-14 00:33:05,740 INFO L130 BoogieDeclarations]: Found specification of procedure hso_serial_set_termios [2022-07-14 00:33:05,740 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_serial_set_termios [2022-07-14 00:33:05,740 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-14 00:33:05,740 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-14 00:33:05,741 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-07-14 00:33:05,741 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-07-14 00:33:05,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 00:33:05,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 00:33:05,741 INFO L130 BoogieDeclarations]: Found specification of procedure dev2ser [2022-07-14 00:33:05,741 INFO L138 BoogieDeclarations]: Found implementation of procedure dev2ser [2022-07-14 00:33:05,741 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-14 00:33:05,742 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-14 00:33:05,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 00:33:05,742 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 00:33:05,742 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 00:33:05,742 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 00:33:05,743 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-14 00:33:05,743 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-14 00:33:05,744 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-14 00:33:05,744 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-14 00:33:05,744 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_device [2022-07-14 00:33:05,744 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_device [2022-07-14 00:33:05,744 INFO L130 BoogieDeclarations]: Found specification of procedure hso_create_net_device [2022-07-14 00:33:05,745 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_create_net_device [2022-07-14 00:33:05,745 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-14 00:33:05,745 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-14 00:33:05,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 00:33:05,745 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-14 00:33:05,745 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-14 00:33:05,745 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-14 00:33:05,745 INFO L130 BoogieDeclarations]: Found specification of procedure put_rxbuf_data [2022-07-14 00:33:05,746 INFO L138 BoogieDeclarations]: Found implementation of procedure put_rxbuf_data [2022-07-14 00:33:05,746 INFO L130 BoogieDeclarations]: Found specification of procedure hso_serial_tiocmget [2022-07-14 00:33:05,746 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_serial_tiocmget [2022-07-14 00:33:05,746 INFO L130 BoogieDeclarations]: Found specification of procedure hso_free_net_device [2022-07-14 00:33:05,747 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_free_net_device [2022-07-14 00:33:05,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 00:33:05,747 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-07-14 00:33:05,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-14 00:33:05,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-14 00:33:05,747 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-14 00:33:05,747 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-14 00:33:05,748 INFO L130 BoogieDeclarations]: Found specification of procedure hso_mux_serial_read [2022-07-14 00:33:05,748 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_mux_serial_read [2022-07-14 00:33:05,748 INFO L130 BoogieDeclarations]: Found specification of procedure hso_serial_common_free [2022-07-14 00:33:05,748 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_serial_common_free [2022-07-14 00:33:05,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 00:33:05,748 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-07-14 00:33:05,748 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-07-14 00:33:05,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 00:33:05,749 INFO L130 BoogieDeclarations]: Found specification of procedure hso_get_count [2022-07-14 00:33:05,749 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_get_count [2022-07-14 00:33:05,750 INFO L130 BoogieDeclarations]: Found specification of procedure tiocmget_submit_urb [2022-07-14 00:33:05,750 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocmget_submit_urb [2022-07-14 00:33:05,750 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-07-14 00:33:05,750 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-07-14 00:33:05,751 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2022-07-14 00:33:05,751 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2022-07-14 00:33:05,751 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-14 00:33:05,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-14 00:33:05,751 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-14 00:33:05,752 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-14 00:33:05,752 INFO L130 BoogieDeclarations]: Found specification of procedure hso_net_close [2022-07-14 00:33:05,752 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_net_close [2022-07-14 00:33:05,752 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-14 00:33:05,752 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-14 00:33:05,752 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-14 00:33:05,753 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-14 00:33:05,753 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-07-14 00:33:05,753 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-07-14 00:33:05,753 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-14 00:33:05,753 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-14 00:33:05,753 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-14 00:33:05,754 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-14 00:33:05,754 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-14 00:33:05,754 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-14 00:33:05,754 INFO L130 BoogieDeclarations]: Found specification of procedure _hso_serial_set_termios [2022-07-14 00:33:05,754 INFO L138 BoogieDeclarations]: Found implementation of procedure _hso_serial_set_termios [2022-07-14 00:33:05,755 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-07-14 00:33:05,755 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-07-14 00:33:05,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-14 00:33:05,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-14 00:33:05,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-14 00:33:05,758 INFO L130 BoogieDeclarations]: Found specification of procedure hso_resume [2022-07-14 00:33:05,759 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_resume [2022-07-14 00:33:05,759 INFO L130 BoogieDeclarations]: Found specification of procedure put_rxbuf_data_and_resubmit_bulk_urb [2022-07-14 00:33:05,759 INFO L138 BoogieDeclarations]: Found implementation of procedure put_rxbuf_data_and_resubmit_bulk_urb [2022-07-14 00:33:05,760 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-14 00:33:05,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-14 00:33:05,765 INFO L130 BoogieDeclarations]: Found specification of procedure hso_put_activity [2022-07-14 00:33:05,765 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_put_activity [2022-07-14 00:33:05,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-14 00:33:05,765 INFO L130 BoogieDeclarations]: Found specification of procedure rfkill_destroy [2022-07-14 00:33:05,765 INFO L138 BoogieDeclarations]: Found implementation of procedure rfkill_destroy [2022-07-14 00:33:05,765 INFO L130 BoogieDeclarations]: Found specification of procedure hso_mux_submit_intr_urb [2022-07-14 00:33:05,765 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_mux_submit_intr_urb [2022-07-14 00:33:05,766 INFO L130 BoogieDeclarations]: Found specification of procedure usb_mark_last_busy [2022-07-14 00:33:05,766 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_mark_last_busy [2022-07-14 00:33:05,766 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2022-07-14 00:33:05,766 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2022-07-14 00:33:05,766 INFO L130 BoogieDeclarations]: Found specification of procedure hso_mux_to_port [2022-07-14 00:33:05,766 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_mux_to_port [2022-07-14 00:33:05,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 00:33:05,766 INFO L130 BoogieDeclarations]: Found specification of procedure hso_serial_chars_in_buffer [2022-07-14 00:33:05,767 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_serial_chars_in_buffer [2022-07-14 00:33:05,767 INFO L130 BoogieDeclarations]: Found specification of procedure dev2net [2022-07-14 00:33:05,767 INFO L138 BoogieDeclarations]: Found implementation of procedure dev2net [2022-07-14 00:33:05,767 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_wakeup [2022-07-14 00:33:05,767 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_wakeup [2022-07-14 00:33:05,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-14 00:33:05,767 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-14 00:33:05,767 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-14 00:33:05,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-14 00:33:05,768 INFO L130 BoogieDeclarations]: Found specification of procedure hso_serial_ioctl [2022-07-14 00:33:05,768 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_serial_ioctl [2022-07-14 00:33:05,768 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-14 00:33:05,768 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-14 00:33:05,768 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-07-14 00:33:05,768 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-07-14 00:33:05,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-14 00:33:05,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-14 00:33:05,769 INFO L130 BoogieDeclarations]: Found specification of procedure hso_create_device [2022-07-14 00:33:05,769 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_create_device [2022-07-14 00:33:05,769 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2022-07-14 00:33:05,769 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2022-07-14 00:33:05,769 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 00:33:05,769 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 00:33:05,769 INFO L130 BoogieDeclarations]: Found specification of procedure hso_serial_write_room [2022-07-14 00:33:05,769 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_serial_write_room [2022-07-14 00:33:05,770 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-07-14 00:33:05,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-07-14 00:33:05,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 00:33:05,770 INFO L130 BoogieDeclarations]: Found specification of procedure hso_net_tx_timeout [2022-07-14 00:33:05,770 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_net_tx_timeout [2022-07-14 00:33:05,770 INFO L130 BoogieDeclarations]: Found specification of procedure hso_urb_to_index [2022-07-14 00:33:05,770 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_urb_to_index [2022-07-14 00:33:05,771 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-07-14 00:33:05,771 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-07-14 00:33:05,771 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-07-14 00:33:05,771 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-07-14 00:33:05,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 00:33:05,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 00:33:05,771 INFO L130 BoogieDeclarations]: Found specification of procedure set_serial_by_index [2022-07-14 00:33:05,771 INFO L138 BoogieDeclarations]: Found implementation of procedure set_serial_by_index [2022-07-14 00:33:05,772 INFO L130 BoogieDeclarations]: Found specification of procedure hso_stop_net_device [2022-07-14 00:33:05,772 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_stop_net_device [2022-07-14 00:33:05,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 00:33:05,772 INFO L130 BoogieDeclarations]: Found specification of procedure hso_free_interface [2022-07-14 00:33:05,772 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_free_interface [2022-07-14 00:33:05,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 00:33:05,772 INFO L130 BoogieDeclarations]: Found specification of procedure handle_usb_error [2022-07-14 00:33:05,772 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_usb_error [2022-07-14 00:33:05,772 INFO L130 BoogieDeclarations]: Found specification of procedure hso_net_start_xmit [2022-07-14 00:33:05,773 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_net_start_xmit [2022-07-14 00:33:05,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 00:33:05,773 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-14 00:33:05,773 INFO L130 BoogieDeclarations]: Found specification of procedure hso_disconnect [2022-07-14 00:33:05,773 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_disconnect [2022-07-14 00:33:05,773 INFO L130 BoogieDeclarations]: Found specification of procedure hso_serial_tiocmset [2022-07-14 00:33:05,773 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_serial_tiocmset [2022-07-14 00:33:05,773 INFO L130 BoogieDeclarations]: Found specification of procedure hso_serial_common_create [2022-07-14 00:33:05,774 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_serial_common_create [2022-07-14 00:33:05,774 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 00:33:05,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 00:33:05,774 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-07-14 00:33:05,774 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-07-14 00:33:05,774 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-14 00:33:05,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-14 00:33:05,774 INFO L130 BoogieDeclarations]: Found specification of procedure hso_log_port [2022-07-14 00:33:05,774 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_log_port [2022-07-14 00:33:05,775 INFO L130 BoogieDeclarations]: Found specification of procedure hso_unthrottle_tasklet [2022-07-14 00:33:05,775 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_unthrottle_tasklet [2022-07-14 00:33:05,775 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-07-14 00:33:05,775 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-07-14 00:33:05,775 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-14 00:33:05,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-14 00:33:05,775 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-07-14 00:33:05,775 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-07-14 00:33:05,776 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-14 00:33:05,776 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-14 00:33:05,776 INFO L130 BoogieDeclarations]: Found specification of procedure hso_free_tiomget [2022-07-14 00:33:05,776 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_free_tiomget [2022-07-14 00:33:05,776 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-14 00:33:05,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-14 00:33:05,776 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-14 00:33:05,776 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-14 00:33:05,777 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-14 00:33:05,854 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-14 00:33:05,854 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-14 00:33:05,854 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-14 00:33:05,854 INFO L130 BoogieDeclarations]: Found specification of procedure hso_net_open [2022-07-14 00:33:05,854 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_net_open [2022-07-14 00:33:05,854 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_set [2022-07-14 00:33:05,854 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_set [2022-07-14 00:33:05,854 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-14 00:33:05,854 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-14 00:33:05,854 INFO L130 BoogieDeclarations]: Found specification of procedure hso_start_net_device [2022-07-14 00:33:05,854 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_start_net_device [2022-07-14 00:33:05,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 00:33:05,855 INFO L130 BoogieDeclarations]: Found specification of procedure hso_stop_serial_device [2022-07-14 00:33:05,855 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_stop_serial_device [2022-07-14 00:33:05,855 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-07-14 00:33:05,855 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-07-14 00:33:05,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 00:33:05,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 00:33:05,855 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2022-07-14 00:33:05,855 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2022-07-14 00:33:05,855 INFO L130 BoogieDeclarations]: Found specification of procedure put_rxbuf_data_and_resubmit_ctrl_urb [2022-07-14 00:33:05,855 INFO L138 BoogieDeclarations]: Found implementation of procedure put_rxbuf_data_and_resubmit_ctrl_urb [2022-07-14 00:33:05,855 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-14 00:33:05,855 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-14 00:33:06,742 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 00:33:06,745 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 00:33:07,065 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 00:33:17,149 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 00:33:17,176 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 00:33:17,178 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-14 00:33:17,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:33:17 BoogieIcfgContainer [2022-07-14 00:33:17,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 00:33:17,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 00:33:17,188 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 00:33:17,191 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 00:33:17,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 12:33:02" (1/3) ... [2022-07-14 00:33:17,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72c72e04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:33:17, skipping insertion in model container [2022-07-14 00:33:17,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:33:05" (2/3) ... [2022-07-14 00:33:17,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72c72e04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:33:17, skipping insertion in model container [2022-07-14 00:33:17,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:33:17" (3/3) ... [2022-07-14 00:33:17,195 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--usb--hso.ko-entry_point.cil.out.i [2022-07-14 00:33:17,212 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 00:33:17,212 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 00:33:17,331 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 00:33:17,346 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@4dc05ec8, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5b416cb9 [2022-07-14 00:33:17,347 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 00:33:17,359 INFO L276 IsEmpty]: Start isEmpty. Operand has 2120 states, 1527 states have (on average 1.3929273084479372) internal successors, (2127), 1566 states have internal predecessors, (2127), 479 states have call successors, (479), 113 states have call predecessors, (479), 112 states have return successors, (471), 466 states have call predecessors, (471), 471 states have call successors, (471) [2022-07-14 00:33:17,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-14 00:33:17,393 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:33:17,394 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2022-07-14 00:33:17,395 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:33:17,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:33:17,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1167061181, now seen corresponding path program 1 times [2022-07-14 00:33:17,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:33:17,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271490575] [2022-07-14 00:33:17,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:33:17,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:33:17,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:18,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:33:18,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:18,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:33:18,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:18,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:33:18,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:18,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:33:18,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:18,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:33:18,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:18,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:33:18,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:18,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:33:18,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:18,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:33:18,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:18,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:33:18,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:18,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:33:18,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:18,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:33:18,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:18,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:33:18,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:18,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-14 00:33:18,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:18,422 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2022-07-14 00:33:18,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:33:18,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271490575] [2022-07-14 00:33:18,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271490575] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:33:18,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:33:18,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:33:18,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226640155] [2022-07-14 00:33:18,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:33:18,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:33:18,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:33:18,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:33:18,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:33:18,475 INFO L87 Difference]: Start difference. First operand has 2120 states, 1527 states have (on average 1.3929273084479372) internal successors, (2127), 1566 states have internal predecessors, (2127), 479 states have call successors, (479), 113 states have call predecessors, (479), 112 states have return successors, (471), 466 states have call predecessors, (471), 471 states have call successors, (471) Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-14 00:33:21,382 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 [] [2022-07-14 00:33:23,980 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:33:26,007 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:33:30,390 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:33:32,414 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:33:36,543 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:33:39,918 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:33:46,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:33:46,838 INFO L93 Difference]: Finished difference Result 6605 states and 9880 transitions. [2022-07-14 00:33:46,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:33:46,843 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 94 [2022-07-14 00:33:46,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:33:46,894 INFO L225 Difference]: With dead ends: 6605 [2022-07-14 00:33:46,895 INFO L226 Difference]: Without dead ends: 4444 [2022-07-14 00:33:46,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:33:46,918 INFO L413 NwaCegarLoop]: 3281 mSDtfsCounter, 5326 mSDsluCounter, 4341 mSDsCounter, 0 mSdLazyCounter, 4254 mSolverCounterSat, 2617 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5593 SdHoareTripleChecker+Valid, 7622 SdHoareTripleChecker+Invalid, 6876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2617 IncrementalHoareTripleChecker+Valid, 4254 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.7s IncrementalHoareTripleChecker+Time [2022-07-14 00:33:46,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5593 Valid, 7622 Invalid, 6876 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2617 Valid, 4254 Invalid, 5 Unknown, 0 Unchecked, 27.7s Time] [2022-07-14 00:33:46,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4444 states. [2022-07-14 00:33:47,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4444 to 3732. [2022-07-14 00:33:47,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3732 states, 2701 states have (on average 1.371714179933358) internal successors, (3705), 2754 states have internal predecessors, (3705), 816 states have call successors, (816), 213 states have call predecessors, (816), 214 states have return successors, (821), 806 states have call predecessors, (821), 815 states have call successors, (821) [2022-07-14 00:33:47,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3732 states to 3732 states and 5342 transitions. [2022-07-14 00:33:47,178 INFO L78 Accepts]: Start accepts. Automaton has 3732 states and 5342 transitions. Word has length 94 [2022-07-14 00:33:47,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:33:47,180 INFO L495 AbstractCegarLoop]: Abstraction has 3732 states and 5342 transitions. [2022-07-14 00:33:47,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-14 00:33:47,180 INFO L276 IsEmpty]: Start isEmpty. Operand 3732 states and 5342 transitions. [2022-07-14 00:33:47,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-07-14 00:33:47,191 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:33:47,191 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2022-07-14 00:33:47,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 00:33:47,192 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:33:47,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:33:47,193 INFO L85 PathProgramCache]: Analyzing trace with hash 270868088, now seen corresponding path program 1 times [2022-07-14 00:33:47,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:33:47,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229163462] [2022-07-14 00:33:47,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:33:47,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:33:47,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:47,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:33:47,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:47,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:33:47,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:47,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:33:47,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:47,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:33:47,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:47,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:33:47,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:47,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:33:47,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:47,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:33:47,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:47,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:33:47,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:47,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:33:47,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:47,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:33:47,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:47,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:33:47,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:47,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:33:47,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:47,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-14 00:33:47,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:47,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-14 00:33:47,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:47,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-14 00:33:47,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:47,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:33:47,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:47,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-14 00:33:47,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:47,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 00:33:47,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:47,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-14 00:33:47,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:47,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-14 00:33:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:33:47,936 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2022-07-14 00:33:47,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:33:47,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229163462] [2022-07-14 00:33:47,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229163462] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:33:47,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:33:47,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:33:47,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962356239] [2022-07-14 00:33:47,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:33:47,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:33:47,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:33:47,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:33:47,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:33:47,941 INFO L87 Difference]: Start difference. First operand 3732 states and 5342 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-14 00:33:50,851 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:33:53,666 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:33:55,695 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:34:05,668 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:34:07,707 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:34:14,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:34:14,762 INFO L93 Difference]: Finished difference Result 13142 states and 19159 transitions. [2022-07-14 00:34:14,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 00:34:14,763 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 136 [2022-07-14 00:34:14,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:34:14,823 INFO L225 Difference]: With dead ends: 13142 [2022-07-14 00:34:14,824 INFO L226 Difference]: Without dead ends: 9437 [2022-07-14 00:34:14,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-07-14 00:34:14,845 INFO L413 NwaCegarLoop]: 2922 mSDtfsCounter, 8653 mSDsluCounter, 4271 mSDsCounter, 0 mSdLazyCounter, 6364 mSolverCounterSat, 5132 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9096 SdHoareTripleChecker+Valid, 7193 SdHoareTripleChecker+Invalid, 11501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5132 IncrementalHoareTripleChecker+Valid, 6364 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:34:14,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9096 Valid, 7193 Invalid, 11501 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5132 Valid, 6364 Invalid, 5 Unknown, 0 Unchecked, 26.1s Time] [2022-07-14 00:34:14,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9437 states. [2022-07-14 00:34:15,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9437 to 7508. [2022-07-14 00:34:15,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7508 states, 5427 states have (on average 1.3681592039800996) internal successors, (7425), 5540 states have internal predecessors, (7425), 1625 states have call successors, (1625), 425 states have call predecessors, (1625), 455 states have return successors, (1727), 1619 states have call predecessors, (1727), 1624 states have call successors, (1727) [2022-07-14 00:34:15,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7508 states to 7508 states and 10777 transitions. [2022-07-14 00:34:15,201 INFO L78 Accepts]: Start accepts. Automaton has 7508 states and 10777 transitions. Word has length 136 [2022-07-14 00:34:15,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:34:15,204 INFO L495 AbstractCegarLoop]: Abstraction has 7508 states and 10777 transitions. [2022-07-14 00:34:15,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-14 00:34:15,207 INFO L276 IsEmpty]: Start isEmpty. Operand 7508 states and 10777 transitions. [2022-07-14 00:34:15,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-07-14 00:34:15,217 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:34:15,217 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2022-07-14 00:34:15,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 00:34:15,218 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:34:15,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:34:15,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1739517869, now seen corresponding path program 1 times [2022-07-14 00:34:15,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:34:15,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384490452] [2022-07-14 00:34:15,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:34:15,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:34:15,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:15,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:34:15,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:15,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:34:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:15,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:34:15,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:15,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:34:15,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:15,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:34:15,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:15,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:34:15,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:15,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:34:15,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:15,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:34:15,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:15,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:34:15,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:15,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:34:15,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:15,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:34:15,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:15,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:34:15,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:15,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:34:15,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:15,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-14 00:34:15,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:15,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:34:15,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:15,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-14 00:34:15,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:15,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-14 00:34:15,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:15,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-14 00:34:15,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:15,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-14 00:34:15,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:15,677 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2022-07-14 00:34:15,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:34:15,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384490452] [2022-07-14 00:34:15,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384490452] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:34:15,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:34:15,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:34:15,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034557517] [2022-07-14 00:34:15,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:34:15,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:34:15,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:34:15,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:34:15,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:34:15,681 INFO L87 Difference]: Start difference. First operand 7508 states and 10777 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-14 00:34:18,109 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 [] [2022-07-14 00:34:20,138 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:34:24,363 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:34:26,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:34:28,435 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:34:30,480 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:34:32,519 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:34:35,268 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:34:37,304 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:34:51,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:34:51,998 INFO L93 Difference]: Finished difference Result 21808 states and 31618 transitions. [2022-07-14 00:34:51,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 00:34:51,999 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 148 [2022-07-14 00:34:51,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:34:52,094 INFO L225 Difference]: With dead ends: 21808 [2022-07-14 00:34:52,095 INFO L226 Difference]: Without dead ends: 14327 [2022-07-14 00:34:52,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-07-14 00:34:52,134 INFO L413 NwaCegarLoop]: 3015 mSDtfsCounter, 7830 mSDsluCounter, 4414 mSDsCounter, 0 mSdLazyCounter, 6246 mSolverCounterSat, 4759 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8198 SdHoareTripleChecker+Valid, 7429 SdHoareTripleChecker+Invalid, 11013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4759 IncrementalHoareTripleChecker+Valid, 6246 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.5s IncrementalHoareTripleChecker+Time [2022-07-14 00:34:52,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8198 Valid, 7429 Invalid, 11013 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4759 Valid, 6246 Invalid, 8 Unknown, 0 Unchecked, 35.5s Time] [2022-07-14 00:34:52,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14327 states. [2022-07-14 00:34:52,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14327 to 11501. [2022-07-14 00:34:52,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11501 states, 8327 states have (on average 1.364356911252552) internal successors, (11361), 8500 states have internal predecessors, (11361), 2444 states have call successors, (2444), 682 states have call predecessors, (2444), 729 states have return successors, (2597), 2436 states have call predecessors, (2597), 2443 states have call successors, (2597) [2022-07-14 00:34:52,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11501 states to 11501 states and 16402 transitions. [2022-07-14 00:34:52,841 INFO L78 Accepts]: Start accepts. Automaton has 11501 states and 16402 transitions. Word has length 148 [2022-07-14 00:34:52,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:34:52,844 INFO L495 AbstractCegarLoop]: Abstraction has 11501 states and 16402 transitions. [2022-07-14 00:34:52,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-14 00:34:52,845 INFO L276 IsEmpty]: Start isEmpty. Operand 11501 states and 16402 transitions. [2022-07-14 00:34:52,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-07-14 00:34:52,849 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:34:52,850 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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] [2022-07-14 00:34:52,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 00:34:52,850 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:34:52,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:34:52,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1988760036, now seen corresponding path program 1 times [2022-07-14 00:34:52,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:34:52,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426932703] [2022-07-14 00:34:52,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:34:52,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:34:53,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:53,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:34:53,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:53,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:34:53,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:53,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:34:53,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:53,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:34:53,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:53,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:34:53,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:53,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:34:53,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:53,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:34:53,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:53,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:34:53,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:53,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:34:53,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:53,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:34:53,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:53,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:34:53,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:53,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:34:53,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:53,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-14 00:34:53,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:53,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-14 00:34:53,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:53,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-14 00:34:53,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:53,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-14 00:34:53,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:53,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:34:53,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:53,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-14 00:34:53,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:53,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-14 00:34:53,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:53,492 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2022-07-14 00:34:53,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:34:53,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426932703] [2022-07-14 00:34:53,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426932703] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:34:53,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:34:53,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:34:53,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826900091] [2022-07-14 00:34:53,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:34:53,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:34:53,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:34:53,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:34:53,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:34:53,496 INFO L87 Difference]: Start difference. First operand 11501 states and 16402 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-14 00:34:55,866 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:34:59,747 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:35:06,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:35:06,584 INFO L93 Difference]: Finished difference Result 25932 states and 37533 transitions. [2022-07-14 00:35:06,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 00:35:06,585 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 154 [2022-07-14 00:35:06,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:35:06,667 INFO L225 Difference]: With dead ends: 25932 [2022-07-14 00:35:06,667 INFO L226 Difference]: Without dead ends: 14471 [2022-07-14 00:35:06,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:35:06,724 INFO L413 NwaCegarLoop]: 2654 mSDtfsCounter, 3023 mSDsluCounter, 3960 mSDsCounter, 0 mSdLazyCounter, 3859 mSolverCounterSat, 2191 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3174 SdHoareTripleChecker+Valid, 6614 SdHoareTripleChecker+Invalid, 6052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2191 IncrementalHoareTripleChecker+Valid, 3859 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2022-07-14 00:35:06,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3174 Valid, 6614 Invalid, 6052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2191 Valid, 3859 Invalid, 2 Unknown, 0 Unchecked, 12.6s Time] [2022-07-14 00:35:06,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14471 states. [2022-07-14 00:35:07,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14471 to 12016. [2022-07-14 00:35:07,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12016 states, 8695 states have (on average 1.363772282921219) internal successors, (11858), 8874 states have internal predecessors, (11858), 2561 states have call successors, (2561), 682 states have call predecessors, (2561), 759 states have return successors, (2822), 2589 states have call predecessors, (2822), 2560 states have call successors, (2822) [2022-07-14 00:35:07,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12016 states to 12016 states and 17241 transitions. [2022-07-14 00:35:07,272 INFO L78 Accepts]: Start accepts. Automaton has 12016 states and 17241 transitions. Word has length 154 [2022-07-14 00:35:07,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:35:07,273 INFO L495 AbstractCegarLoop]: Abstraction has 12016 states and 17241 transitions. [2022-07-14 00:35:07,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-14 00:35:07,274 INFO L276 IsEmpty]: Start isEmpty. Operand 12016 states and 17241 transitions. [2022-07-14 00:35:07,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-14 00:35:07,277 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:35:07,277 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:35:07,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 00:35:07,278 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:35:07,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:35:07,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1680380448, now seen corresponding path program 1 times [2022-07-14 00:35:07,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:35:07,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204956284] [2022-07-14 00:35:07,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:35:07,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:35:07,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:07,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:35:07,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:07,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:35:07,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:07,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:35:07,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:07,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:35:07,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:07,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:35:07,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:07,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:35:07,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:07,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:35:07,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:07,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:35:07,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:07,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:35:07,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:07,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:35:07,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:07,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:35:07,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:07,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:35:07,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:07,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-14 00:35:07,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:07,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-14 00:35:07,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:07,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-14 00:35:07,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:07,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 00:35:07,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:07,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:35:07,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:07,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-14 00:35:07,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:07,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-14 00:35:07,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:07,851 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2022-07-14 00:35:07,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:35:07,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204956284] [2022-07-14 00:35:07,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204956284] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:35:07,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484260830] [2022-07-14 00:35:07,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:35:07,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:35:07,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:35:07,858 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:35:07,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-14 00:35:09,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:09,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 6207 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 00:35:09,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:35:09,594 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2022-07-14 00:35:09,594 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:35:09,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [484260830] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:35:09,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:35:09,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2022-07-14 00:35:09,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729445515] [2022-07-14 00:35:09,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:35:09,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:35:09,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:35:09,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:35:09,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:35:09,604 INFO L87 Difference]: Start difference. First operand 12016 states and 17241 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-14 00:35:09,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:35:09,903 INFO L93 Difference]: Finished difference Result 23992 states and 34427 transitions. [2022-07-14 00:35:09,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:35:09,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 156 [2022-07-14 00:35:09,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:35:09,967 INFO L225 Difference]: With dead ends: 23992 [2022-07-14 00:35:09,967 INFO L226 Difference]: Without dead ends: 12016 [2022-07-14 00:35:10,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:35:10,018 INFO L413 NwaCegarLoop]: 3015 mSDtfsCounter, 2929 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2929 SdHoareTripleChecker+Valid, 3015 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 00:35:10,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2929 Valid, 3015 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 00:35:10,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12016 states. [2022-07-14 00:35:10,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12016 to 12016. [2022-07-14 00:35:10,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12016 states, 8695 states have (on average 1.3628522139160437) internal successors, (11850), 8874 states have internal predecessors, (11850), 2561 states have call successors, (2561), 682 states have call predecessors, (2561), 759 states have return successors, (2822), 2589 states have call predecessors, (2822), 2560 states have call successors, (2822) [2022-07-14 00:35:10,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12016 states to 12016 states and 17233 transitions. [2022-07-14 00:35:10,633 INFO L78 Accepts]: Start accepts. Automaton has 12016 states and 17233 transitions. Word has length 156 [2022-07-14 00:35:10,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:35:10,634 INFO L495 AbstractCegarLoop]: Abstraction has 12016 states and 17233 transitions. [2022-07-14 00:35:10,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-14 00:35:10,634 INFO L276 IsEmpty]: Start isEmpty. Operand 12016 states and 17233 transitions. [2022-07-14 00:35:10,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-14 00:35:10,638 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:35:10,638 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:35:10,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-14 00:35:10,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:35:10,852 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:35:10,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:35:10,852 INFO L85 PathProgramCache]: Analyzing trace with hash 769219682, now seen corresponding path program 1 times [2022-07-14 00:35:10,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:35:10,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893042959] [2022-07-14 00:35:10,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:35:10,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:35:11,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:11,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:35:11,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:11,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:35:11,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:11,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:35:11,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:11,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:35:11,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:11,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:35:11,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:11,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:35:11,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:11,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:35:11,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:11,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:35:11,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:11,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:35:11,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:11,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:35:11,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:11,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:35:11,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:11,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:35:11,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:11,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-14 00:35:11,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:11,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-14 00:35:11,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:11,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-14 00:35:11,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:11,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 00:35:11,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:11,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:35:11,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:11,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-14 00:35:11,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:11,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-14 00:35:11,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:11,338 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2022-07-14 00:35:11,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:35:11,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893042959] [2022-07-14 00:35:11,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893042959] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:35:11,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661684117] [2022-07-14 00:35:11,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:35:11,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:35:11,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:35:11,341 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:35:11,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-14 00:35:12,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:12,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 6196 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 00:35:12,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:35:12,810 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-07-14 00:35:12,810 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:35:12,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661684117] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:35:12,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:35:12,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-07-14 00:35:12,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527759458] [2022-07-14 00:35:12,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:35:12,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:35:12,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:35:12,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:35:12,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:35:12,813 INFO L87 Difference]: Start difference. First operand 12016 states and 17233 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-14 00:35:13,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:35:13,264 INFO L93 Difference]: Finished difference Result 23996 states and 34415 transitions. [2022-07-14 00:35:13,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:35:13,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 156 [2022-07-14 00:35:13,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:35:13,313 INFO L225 Difference]: With dead ends: 23996 [2022-07-14 00:35:13,314 INFO L226 Difference]: Without dead ends: 12012 [2022-07-14 00:35:13,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:35:13,345 INFO L413 NwaCegarLoop]: 3016 mSDtfsCounter, 0 mSDsluCounter, 3011 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6027 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:35:13,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6027 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 00:35:13,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12012 states. [2022-07-14 00:35:13,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12012 to 11966. [2022-07-14 00:35:13,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11966 states, 8657 states have (on average 1.3632898232644104) internal successors, (11802), 8838 states have internal predecessors, (11802), 2555 states have call successors, (2555), 676 states have call predecessors, (2555), 753 states have return successors, (2816), 2581 states have call predecessors, (2816), 2554 states have call successors, (2816) [2022-07-14 00:35:13,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11966 states to 11966 states and 17173 transitions. [2022-07-14 00:35:13,747 INFO L78 Accepts]: Start accepts. Automaton has 11966 states and 17173 transitions. Word has length 156 [2022-07-14 00:35:13,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:35:13,747 INFO L495 AbstractCegarLoop]: Abstraction has 11966 states and 17173 transitions. [2022-07-14 00:35:13,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-14 00:35:13,748 INFO L276 IsEmpty]: Start isEmpty. Operand 11966 states and 17173 transitions. [2022-07-14 00:35:13,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-07-14 00:35:13,752 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:35:13,752 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:35:13,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-14 00:35:13,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-07-14 00:35:13,980 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:35:13,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:35:13,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1938575962, now seen corresponding path program 1 times [2022-07-14 00:35:13,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:35:13,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393082221] [2022-07-14 00:35:13,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:35:13,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:35:14,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:14,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:35:14,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:14,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:35:14,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:14,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:35:14,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:14,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:35:14,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:14,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:35:14,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:14,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:35:14,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:14,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:35:14,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:14,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:35:14,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:14,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:35:14,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:14,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:35:14,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:14,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:35:14,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:14,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:35:14,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:14,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-14 00:35:14,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:14,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-14 00:35:14,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:14,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-14 00:35:14,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:14,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 00:35:14,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:14,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:35:14,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:14,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-14 00:35:14,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:14,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-14 00:35:14,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:14,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-14 00:35:14,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:14,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-14 00:35:14,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:14,426 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2022-07-14 00:35:14,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:35:14,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393082221] [2022-07-14 00:35:14,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393082221] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:35:14,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107759310] [2022-07-14 00:35:14,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:35:14,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:35:14,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:35:14,429 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:35:14,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-14 00:35:16,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:16,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 6271 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 00:35:16,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:35:16,405 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2022-07-14 00:35:16,406 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:35:16,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [107759310] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:35:16,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:35:16,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2022-07-14 00:35:16,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016499965] [2022-07-14 00:35:16,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:35:16,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:35:16,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:35:16,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:35:16,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:35:16,408 INFO L87 Difference]: Start difference. First operand 11966 states and 17173 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-07-14 00:35:16,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:35:16,743 INFO L93 Difference]: Finished difference Result 13932 states and 19613 transitions. [2022-07-14 00:35:16,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:35:16,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 169 [2022-07-14 00:35:16,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:35:16,816 INFO L225 Difference]: With dead ends: 13932 [2022-07-14 00:35:16,816 INFO L226 Difference]: Without dead ends: 13929 [2022-07-14 00:35:16,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:35:16,830 INFO L413 NwaCegarLoop]: 3190 mSDtfsCounter, 2364 mSDsluCounter, 941 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2364 SdHoareTripleChecker+Valid, 4131 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 00:35:16,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2364 Valid, 4131 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 00:35:16,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13929 states. [2022-07-14 00:35:17,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13929 to 13748. [2022-07-14 00:35:17,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13748 states, 9880 states have (on average 1.3466599190283401) internal successors, (13305), 10085 states have internal predecessors, (13305), 2894 states have call successors, (2894), 896 states have call predecessors, (2894), 973 states have return successors, (3156), 2914 states have call predecessors, (3156), 2893 states have call successors, (3156) [2022-07-14 00:35:17,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13748 states to 13748 states and 19355 transitions. [2022-07-14 00:35:17,322 INFO L78 Accepts]: Start accepts. Automaton has 13748 states and 19355 transitions. Word has length 169 [2022-07-14 00:35:17,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:35:17,323 INFO L495 AbstractCegarLoop]: Abstraction has 13748 states and 19355 transitions. [2022-07-14 00:35:17,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-07-14 00:35:17,324 INFO L276 IsEmpty]: Start isEmpty. Operand 13748 states and 19355 transitions. [2022-07-14 00:35:17,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-07-14 00:35:17,335 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:35:17,336 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:35:17,378 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-14 00:35:17,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:35:17,552 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:35:17,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:35:17,553 INFO L85 PathProgramCache]: Analyzing trace with hash 2090437695, now seen corresponding path program 1 times [2022-07-14 00:35:17,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:35:17,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958363407] [2022-07-14 00:35:17,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:35:17,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:35:17,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:17,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:35:17,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:17,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:35:17,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:17,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:35:17,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:17,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:35:17,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:17,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:35:17,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:17,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:35:17,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:17,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:35:17,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:17,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:35:17,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:17,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:35:17,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:17,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:35:17,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:17,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:35:17,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:17,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:35:17,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:17,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-14 00:35:17,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:17,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-14 00:35:17,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:17,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-14 00:35:17,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:17,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 00:35:17,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:17,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:35:17,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:17,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-14 00:35:17,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:17,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-14 00:35:17,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:17,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-14 00:35:17,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:17,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-14 00:35:17,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:17,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:35:17,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:17,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-14 00:35:17,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:17,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-14 00:35:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:17,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-14 00:35:17,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:17,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-14 00:35:17,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:17,979 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2022-07-14 00:35:17,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:35:17,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958363407] [2022-07-14 00:35:17,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958363407] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:35:17,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890268667] [2022-07-14 00:35:17,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:35:17,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:35:17,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:35:17,982 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:35:17,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-14 00:35:19,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:19,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 4723 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:35:19,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:35:19,505 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-07-14 00:35:19,505 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:35:19,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890268667] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:35:19,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:35:19,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-07-14 00:35:19,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184816292] [2022-07-14 00:35:19,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:35:19,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:35:19,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:35:19,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:35:19,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-14 00:35:19,508 INFO L87 Difference]: Start difference. First operand 13748 states and 19355 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-14 00:35:20,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:35:20,322 INFO L93 Difference]: Finished difference Result 35815 states and 50392 transitions. [2022-07-14 00:35:20,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:35:20,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 206 [2022-07-14 00:35:20,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:35:20,441 INFO L225 Difference]: With dead ends: 35815 [2022-07-14 00:35:20,442 INFO L226 Difference]: Without dead ends: 22107 [2022-07-14 00:35:20,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-14 00:35:20,507 INFO L413 NwaCegarLoop]: 3467 mSDtfsCounter, 2890 mSDsluCounter, 2773 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2890 SdHoareTripleChecker+Valid, 6240 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 00:35:20,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2890 Valid, 6240 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 00:35:20,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22107 states. [2022-07-14 00:35:21,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22107 to 22058. [2022-07-14 00:35:21,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22058 states, 15895 states have (on average 1.3477194086190627) internal successors, (21422), 16227 states have internal predecessors, (21422), 4582 states have call successors, (4582), 1452 states have call predecessors, (4582), 1580 states have return successors, (4998), 4615 states have call predecessors, (4998), 4581 states have call successors, (4998) [2022-07-14 00:35:21,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22058 states to 22058 states and 31002 transitions. [2022-07-14 00:35:21,423 INFO L78 Accepts]: Start accepts. Automaton has 22058 states and 31002 transitions. Word has length 206 [2022-07-14 00:35:21,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:35:21,423 INFO L495 AbstractCegarLoop]: Abstraction has 22058 states and 31002 transitions. [2022-07-14 00:35:21,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-14 00:35:21,424 INFO L276 IsEmpty]: Start isEmpty. Operand 22058 states and 31002 transitions. [2022-07-14 00:35:21,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-07-14 00:35:21,441 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:35:21,442 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:35:21,481 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-14 00:35:21,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:35:21,668 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:35:21,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:35:21,668 INFO L85 PathProgramCache]: Analyzing trace with hash -533308836, now seen corresponding path program 1 times [2022-07-14 00:35:21,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:35:21,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897425843] [2022-07-14 00:35:21,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:35:21,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:35:21,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:21,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:35:21,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:21,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:35:21,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:21,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:35:21,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:21,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:35:21,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:21,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:35:22,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:22,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:35:22,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:22,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:35:22,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:22,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:35:22,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:22,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:35:22,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:22,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:35:22,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:22,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:35:22,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:22,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:35:22,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:22,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-14 00:35:22,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:22,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-14 00:35:22,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:22,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-14 00:35:22,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:22,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 00:35:22,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:22,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:35:22,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:22,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-14 00:35:22,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:22,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-14 00:35:22,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:22,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-14 00:35:22,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:22,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-14 00:35:22,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:22,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-14 00:35:22,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:22,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:35:22,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:22,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-14 00:35:22,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:22,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-14 00:35:22,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:22,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-14 00:35:22,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:22,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-07-14 00:35:22,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:22,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-14 00:35:22,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:22,202 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-07-14 00:35:22,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:35:22,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897425843] [2022-07-14 00:35:22,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897425843] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:35:22,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078533908] [2022-07-14 00:35:22,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:35:22,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:35:22,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:35:22,205 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:35:22,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-14 00:35:23,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:24,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 6762 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:35:24,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:35:24,101 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2022-07-14 00:35:24,101 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:35:24,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078533908] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:35:24,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:35:24,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-07-14 00:35:24,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035515199] [2022-07-14 00:35:24,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:35:24,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:35:24,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:35:24,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:35:24,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-14 00:35:24,103 INFO L87 Difference]: Start difference. First operand 22058 states and 31002 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-14 00:35:25,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:35:25,084 INFO L93 Difference]: Finished difference Result 55274 states and 77533 transitions. [2022-07-14 00:35:25,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:35:25,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 232 [2022-07-14 00:35:25,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:35:25,218 INFO L225 Difference]: With dead ends: 55274 [2022-07-14 00:35:25,219 INFO L226 Difference]: Without dead ends: 33256 [2022-07-14 00:35:25,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-14 00:35:25,293 INFO L413 NwaCegarLoop]: 3779 mSDtfsCounter, 2931 mSDsluCounter, 2367 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2931 SdHoareTripleChecker+Valid, 6146 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:35:25,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2931 Valid, 6146 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 00:35:25,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33256 states. [2022-07-14 00:35:26,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33256 to 33223. [2022-07-14 00:35:26,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33223 states, 23949 states have (on average 1.3459852185895027) internal successors, (32235), 24455 states have internal predecessors, (32235), 6839 states have call successors, (6839), 2236 states have call predecessors, (6839), 2434 states have return successors, (7450), 6892 states have call predecessors, (7450), 6838 states have call successors, (7450) [2022-07-14 00:35:26,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33223 states to 33223 states and 46524 transitions. [2022-07-14 00:35:26,803 INFO L78 Accepts]: Start accepts. Automaton has 33223 states and 46524 transitions. Word has length 232 [2022-07-14 00:35:26,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:35:26,804 INFO L495 AbstractCegarLoop]: Abstraction has 33223 states and 46524 transitions. [2022-07-14 00:35:26,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-14 00:35:26,805 INFO L276 IsEmpty]: Start isEmpty. Operand 33223 states and 46524 transitions. [2022-07-14 00:35:26,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-07-14 00:35:26,955 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:35:26,955 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:35:27,001 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-07-14 00:35:27,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:35:27,168 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:35:27,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:35:27,168 INFO L85 PathProgramCache]: Analyzing trace with hash -678524870, now seen corresponding path program 1 times [2022-07-14 00:35:27,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:35:27,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938079326] [2022-07-14 00:35:27,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:35:27,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:35:27,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:27,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:35:27,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:27,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:35:27,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:27,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:35:27,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:27,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:35:27,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:27,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:35:27,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:27,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:35:27,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:27,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:35:27,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:27,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:35:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:27,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:35:27,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:27,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:35:27,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:27,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:35:27,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:27,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:35:27,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:27,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-14 00:35:27,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:27,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-14 00:35:27,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:27,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-14 00:35:27,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:27,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 00:35:27,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:27,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:35:27,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:27,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-14 00:35:27,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:27,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-14 00:35:27,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:27,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-14 00:35:27,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:27,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-14 00:35:27,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:27,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-14 00:35:27,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:27,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:35:27,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:27,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-14 00:35:27,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:27,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-14 00:35:27,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:27,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-14 00:35:27,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:27,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-14 00:35:27,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:27,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-14 00:35:27,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:27,875 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2022-07-14 00:35:27,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:35:27,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938079326] [2022-07-14 00:35:27,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938079326] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:35:27,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636034310] [2022-07-14 00:35:27,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:35:27,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:35:27,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:35:27,880 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:35:27,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-14 00:35:29,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:29,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 6835 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:35:29,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:35:29,762 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2022-07-14 00:35:29,763 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:35:29,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636034310] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:35:29,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:35:29,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-07-14 00:35:29,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163077731] [2022-07-14 00:35:29,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:35:29,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:35:29,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:35:29,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:35:29,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-14 00:35:29,769 INFO L87 Difference]: Start difference. First operand 33223 states and 46524 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-14 00:35:31,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:35:31,318 INFO L93 Difference]: Finished difference Result 77598 states and 108571 transitions. [2022-07-14 00:35:31,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:35:31,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 240 [2022-07-14 00:35:31,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:35:31,518 INFO L225 Difference]: With dead ends: 77598 [2022-07-14 00:35:31,518 INFO L226 Difference]: Without dead ends: 44415 [2022-07-14 00:35:31,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-14 00:35:31,625 INFO L413 NwaCegarLoop]: 3687 mSDtfsCounter, 2985 mSDsluCounter, 2336 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2985 SdHoareTripleChecker+Valid, 6023 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:35:31,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2985 Valid, 6023 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 00:35:31,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44415 states. [2022-07-14 00:35:33,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44415 to 44388. [2022-07-14 00:35:33,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44388 states, 32003 states have (on average 1.3454988594819235) internal successors, (43060), 32683 states have internal predecessors, (43060), 9096 states have call successors, (9096), 3020 states have call predecessors, (9096), 3288 states have return successors, (9902), 9169 states have call predecessors, (9902), 9095 states have call successors, (9902) [2022-07-14 00:35:33,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44388 states to 44388 states and 62058 transitions. [2022-07-14 00:35:33,431 INFO L78 Accepts]: Start accepts. Automaton has 44388 states and 62058 transitions. Word has length 240 [2022-07-14 00:35:33,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:35:33,432 INFO L495 AbstractCegarLoop]: Abstraction has 44388 states and 62058 transitions. [2022-07-14 00:35:33,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-14 00:35:33,433 INFO L276 IsEmpty]: Start isEmpty. Operand 44388 states and 62058 transitions. [2022-07-14 00:35:33,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-07-14 00:35:33,468 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:35:33,468 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:35:33,514 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-14 00:35:33,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:35:33,696 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:35:33,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:35:33,697 INFO L85 PathProgramCache]: Analyzing trace with hash -929503317, now seen corresponding path program 1 times [2022-07-14 00:35:33,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:35:33,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81077543] [2022-07-14 00:35:33,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:35:33,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:35:33,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:34,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:35:34,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:34,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:35:34,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:34,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:35:34,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:34,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:35:34,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:34,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:35:34,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:34,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:35:34,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:34,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:35:34,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:34,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:35:34,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:34,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:35:34,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:34,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:35:34,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:34,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:35:34,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:34,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:35:34,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:34,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-14 00:35:34,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:34,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-14 00:35:34,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:34,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-14 00:35:34,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:34,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 00:35:34,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:34,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:35:34,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:34,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-14 00:35:34,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:34,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-14 00:35:34,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:34,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-14 00:35:34,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:34,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-14 00:35:34,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:34,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-14 00:35:34,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:34,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:35:34,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:34,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-07-14 00:35:34,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:34,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-07-14 00:35:34,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:34,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-07-14 00:35:34,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:34,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-14 00:35:34,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:34,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-14 00:35:34,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:34,532 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2022-07-14 00:35:34,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:35:34,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81077543] [2022-07-14 00:35:34,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81077543] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:35:34,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748993243] [2022-07-14 00:35:34,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:35:34,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:35:34,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:35:34,544 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:35:34,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-14 00:35:36,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:36,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 6890 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:35:36,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:35:36,399 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2022-07-14 00:35:36,400 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:35:36,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748993243] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:35:36,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:35:36,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-07-14 00:35:36,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531393933] [2022-07-14 00:35:36,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:35:36,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:35:36,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:35:36,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:35:36,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-14 00:35:36,402 INFO L87 Difference]: Start difference. First operand 44388 states and 62058 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-14 00:35:38,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:35:38,034 INFO L93 Difference]: Finished difference Result 94456 states and 133281 transitions. [2022-07-14 00:35:38,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:35:38,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 255 [2022-07-14 00:35:38,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:35:38,361 INFO L225 Difference]: With dead ends: 94456 [2022-07-14 00:35:38,361 INFO L226 Difference]: Without dead ends: 50108 [2022-07-14 00:35:38,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-14 00:35:38,481 INFO L413 NwaCegarLoop]: 3720 mSDtfsCounter, 606 mSDsluCounter, 3099 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 6819 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 00:35:38,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 6819 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 00:35:38,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50108 states. [2022-07-14 00:35:40,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50108 to 44400. [2022-07-14 00:35:40,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44400 states, 32015 states have (on average 1.3453693581133843) internal successors, (43072), 32695 states have internal predecessors, (43072), 9096 states have call successors, (9096), 3020 states have call predecessors, (9096), 3288 states have return successors, (9902), 9169 states have call predecessors, (9902), 9095 states have call successors, (9902) [2022-07-14 00:35:40,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44400 states to 44400 states and 62070 transitions. [2022-07-14 00:35:40,369 INFO L78 Accepts]: Start accepts. Automaton has 44400 states and 62070 transitions. Word has length 255 [2022-07-14 00:35:40,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:35:40,370 INFO L495 AbstractCegarLoop]: Abstraction has 44400 states and 62070 transitions. [2022-07-14 00:35:40,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-14 00:35:40,370 INFO L276 IsEmpty]: Start isEmpty. Operand 44400 states and 62070 transitions. [2022-07-14 00:35:40,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-07-14 00:35:40,403 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:35:40,404 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:35:40,447 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-07-14 00:35:40,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:35:40,620 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:35:40,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:35:40,620 INFO L85 PathProgramCache]: Analyzing trace with hash -984501702, now seen corresponding path program 1 times [2022-07-14 00:35:40,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:35:40,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782623372] [2022-07-14 00:35:40,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:35:40,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:35:40,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:40,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:35:40,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:40,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:35:40,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:40,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:35:40,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:40,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:35:40,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:40,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:35:40,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:40,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:35:40,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:40,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:35:40,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:40,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:35:40,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:40,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:35:40,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:40,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:35:40,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:40,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:35:40,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:40,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:35:40,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:40,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-14 00:35:40,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:40,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-14 00:35:40,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:40,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-14 00:35:40,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:40,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 00:35:40,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:40,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:35:40,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:40,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-14 00:35:40,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:40,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-14 00:35:40,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:41,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-14 00:35:41,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:41,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-14 00:35:41,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:41,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:35:41,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:41,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-14 00:35:41,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:41,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-14 00:35:41,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:41,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-07-14 00:35:41,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:41,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-14 00:35:41,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:41,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:35:41,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:41,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-14 00:35:41,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:41,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-07-14 00:35:41,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:41,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-07-14 00:35:41,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:41,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-14 00:35:41,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:41,271 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2022-07-14 00:35:41,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:35:41,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782623372] [2022-07-14 00:35:41,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782623372] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:35:41,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030803514] [2022-07-14 00:35:41,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:35:41,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:35:41,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:35:41,282 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:35:41,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-14 00:35:42,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:42,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 4961 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 00:35:42,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:35:43,104 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2022-07-14 00:35:43,104 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:35:43,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1030803514] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:35:43,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:35:43,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 9 [2022-07-14 00:35:43,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365532481] [2022-07-14 00:35:43,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:35:43,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:35:43,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:35:43,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:35:43,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-14 00:35:43,107 INFO L87 Difference]: Start difference. First operand 44400 states and 62070 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-14 00:35:44,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:35:44,779 INFO L93 Difference]: Finished difference Result 88716 states and 125547 transitions. [2022-07-14 00:35:44,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:35:44,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 257 [2022-07-14 00:35:44,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:35:45,132 INFO L225 Difference]: With dead ends: 88716 [2022-07-14 00:35:45,133 INFO L226 Difference]: Without dead ends: 44356 [2022-07-14 00:35:45,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-14 00:35:45,282 INFO L413 NwaCegarLoop]: 2946 mSDtfsCounter, 2843 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2843 SdHoareTripleChecker+Valid, 2946 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 00:35:45,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2843 Valid, 2946 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 00:35:45,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44356 states. [2022-07-14 00:35:46,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44356 to 44356. [2022-07-14 00:35:46,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44356 states, 31971 states have (on average 1.321416283506928) internal successors, (42247), 32651 states have internal predecessors, (42247), 9096 states have call successors, (9096), 3020 states have call predecessors, (9096), 3288 states have return successors, (9902), 9169 states have call predecessors, (9902), 9095 states have call successors, (9902) [2022-07-14 00:35:46,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44356 states to 44356 states and 61245 transitions. [2022-07-14 00:35:46,925 INFO L78 Accepts]: Start accepts. Automaton has 44356 states and 61245 transitions. Word has length 257 [2022-07-14 00:35:46,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:35:46,925 INFO L495 AbstractCegarLoop]: Abstraction has 44356 states and 61245 transitions. [2022-07-14 00:35:46,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 2 states have internal predecessors, (145), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-14 00:35:46,926 INFO L276 IsEmpty]: Start isEmpty. Operand 44356 states and 61245 transitions. [2022-07-14 00:35:46,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-07-14 00:35:46,951 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:35:46,951 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:35:46,982 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-14 00:35:47,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-14 00:35:47,153 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:35:47,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:35:47,153 INFO L85 PathProgramCache]: Analyzing trace with hash -957436100, now seen corresponding path program 1 times [2022-07-14 00:35:47,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:35:47,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182126653] [2022-07-14 00:35:47,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:35:47,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:35:47,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:47,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:35:47,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:47,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:35:47,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:47,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:35:47,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:47,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:35:47,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:47,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:35:47,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:47,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:35:47,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:47,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:35:47,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:47,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:35:47,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:47,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:35:47,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:47,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:35:47,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:47,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:35:47,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:47,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:35:47,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:47,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-14 00:35:47,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:47,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-14 00:35:47,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:47,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-14 00:35:47,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:47,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 00:35:47,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:47,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:35:47,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:47,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-14 00:35:47,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:47,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-14 00:35:47,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:47,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-14 00:35:47,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:47,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-14 00:35:47,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:47,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:35:47,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:47,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-14 00:35:47,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:47,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-14 00:35:47,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:47,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-07-14 00:35:47,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:47,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-14 00:35:47,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:47,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:35:47,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:47,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-14 00:35:47,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:47,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-07-14 00:35:47,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:47,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-07-14 00:35:47,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:47,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-14 00:35:47,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:47,784 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2022-07-14 00:35:47,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:35:47,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182126653] [2022-07-14 00:35:47,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182126653] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:35:47,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428352512] [2022-07-14 00:35:47,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:35:47,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:35:47,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:35:47,787 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:35:47,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-14 00:35:49,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:49,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 4962 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 00:35:49,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:35:49,409 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 90 proven. 1 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-07-14 00:35:49,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:35:49,530 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2022-07-14 00:35:49,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428352512] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:35:49,530 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 00:35:49,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2022-07-14 00:35:49,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190598690] [2022-07-14 00:35:49,531 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 00:35:49,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 00:35:49,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:35:49,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 00:35:49,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-07-14 00:35:49,533 INFO L87 Difference]: Start difference. First operand 44356 states and 61245 transitions. Second operand has 11 states, 11 states have (on average 16.0) internal successors, (176), 7 states have internal predecessors, (176), 2 states have call successors, (73), 6 states have call predecessors, (73), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-07-14 00:35:51,901 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:35:53,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:35:57,029 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:35:59,056 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:36:09,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:36:09,699 INFO L93 Difference]: Finished difference Result 103499 states and 145291 transitions. [2022-07-14 00:36:09,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 00:36:09,700 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 16.0) internal successors, (176), 7 states have internal predecessors, (176), 2 states have call successors, (73), 6 states have call predecessors, (73), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 257 [2022-07-14 00:36:09,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:36:09,957 INFO L225 Difference]: With dead ends: 103499 [2022-07-14 00:36:09,958 INFO L226 Difference]: Without dead ends: 59183 [2022-07-14 00:36:10,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 586 GetRequests, 573 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2022-07-14 00:36:10,068 INFO L413 NwaCegarLoop]: 2561 mSDtfsCounter, 3693 mSDsluCounter, 5001 mSDsCounter, 0 mSdLazyCounter, 5953 mSolverCounterSat, 2639 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3853 SdHoareTripleChecker+Valid, 7562 SdHoareTripleChecker+Invalid, 8595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2639 IncrementalHoareTripleChecker+Valid, 5953 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time [2022-07-14 00:36:10,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3853 Valid, 7562 Invalid, 8595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2639 Valid, 5953 Invalid, 3 Unknown, 0 Unchecked, 18.0s Time] [2022-07-14 00:36:10,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59183 states. [2022-07-14 00:36:11,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59183 to 44766. [2022-07-14 00:36:11,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44766 states, 32302 states have (on average 1.3201659339978948) internal successors, (42644), 33031 states have internal predecessors, (42644), 9126 states have call successors, (9126), 3020 states have call predecessors, (9126), 3337 states have return successors, (9987), 9199 states have call predecessors, (9987), 9125 states have call successors, (9987) [2022-07-14 00:36:11,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44766 states to 44766 states and 61757 transitions. [2022-07-14 00:36:11,991 INFO L78 Accepts]: Start accepts. Automaton has 44766 states and 61757 transitions. Word has length 257 [2022-07-14 00:36:11,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:36:11,991 INFO L495 AbstractCegarLoop]: Abstraction has 44766 states and 61757 transitions. [2022-07-14 00:36:11,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.0) internal successors, (176), 7 states have internal predecessors, (176), 2 states have call successors, (73), 6 states have call predecessors, (73), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-07-14 00:36:11,991 INFO L276 IsEmpty]: Start isEmpty. Operand 44766 states and 61757 transitions. [2022-07-14 00:36:12,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-07-14 00:36:12,011 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:36:12,011 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:36:12,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-14 00:36:12,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-07-14 00:36:12,212 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:36:12,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:36:12,212 INFO L85 PathProgramCache]: Analyzing trace with hash -722174520, now seen corresponding path program 2 times [2022-07-14 00:36:12,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:36:12,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589713737] [2022-07-14 00:36:12,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:36:12,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:36:12,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:12,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:36:12,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:12,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:36:12,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:12,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:36:12,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:12,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:36:12,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:12,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:36:12,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:12,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:36:12,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:12,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:36:12,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:12,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:36:12,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:12,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:36:12,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:12,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:36:12,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:12,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:36:12,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:12,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:36:12,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:12,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-14 00:36:12,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:12,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-14 00:36:12,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:12,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-14 00:36:12,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:12,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-14 00:36:12,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:12,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:36:12,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:12,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-14 00:36:12,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:12,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 00:36:12,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:12,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-14 00:36:12,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:12,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-14 00:36:12,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:12,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:36:12,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:12,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-14 00:36:12,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:12,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-14 00:36:12,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:12,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-07-14 00:36:12,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:12,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-14 00:36:12,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:12,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:36:12,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:12,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-14 00:36:12,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:12,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-07-14 00:36:12,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:12,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-14 00:36:12,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:12,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-07-14 00:36:12,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:12,687 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2022-07-14 00:36:12,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:36:12,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589713737] [2022-07-14 00:36:12,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589713737] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:36:12,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:36:12,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 00:36:12,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979312577] [2022-07-14 00:36:12,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:36:12,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 00:36:12,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:36:12,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 00:36:12,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:36:12,690 INFO L87 Difference]: Start difference. First operand 44766 states and 61757 transitions. Second operand has 8 states, 8 states have (on average 16.5) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (34), 6 states have call predecessors, (34), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-14 00:36:15,136 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:36:17,179 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:36:20,301 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 [] [2022-07-14 00:36:34,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:36:34,124 INFO L93 Difference]: Finished difference Result 103925 states and 145747 transitions. [2022-07-14 00:36:34,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 00:36:34,125 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.5) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (34), 6 states have call predecessors, (34), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 263 [2022-07-14 00:36:34,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:36:34,418 INFO L225 Difference]: With dead ends: 103925 [2022-07-14 00:36:34,419 INFO L226 Difference]: Without dead ends: 59183 [2022-07-14 00:36:34,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-07-14 00:36:34,559 INFO L413 NwaCegarLoop]: 2554 mSDtfsCounter, 3689 mSDsluCounter, 6431 mSDsCounter, 0 mSdLazyCounter, 7714 mSolverCounterSat, 2642 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3849 SdHoareTripleChecker+Valid, 8985 SdHoareTripleChecker+Invalid, 10359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2642 IncrementalHoareTripleChecker+Valid, 7714 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:36:34,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3849 Valid, 8985 Invalid, 10359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2642 Valid, 7714 Invalid, 3 Unknown, 0 Unchecked, 19.1s Time] [2022-07-14 00:36:34,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59183 states. [2022-07-14 00:36:36,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59183 to 44766. [2022-07-14 00:36:36,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44766 states, 32302 states have (on average 1.3194229459476194) internal successors, (42620), 33031 states have internal predecessors, (42620), 9126 states have call successors, (9126), 3020 states have call predecessors, (9126), 3337 states have return successors, (9987), 9199 states have call predecessors, (9987), 9125 states have call successors, (9987) [2022-07-14 00:36:36,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44766 states to 44766 states and 61733 transitions. [2022-07-14 00:36:36,756 INFO L78 Accepts]: Start accepts. Automaton has 44766 states and 61733 transitions. Word has length 263 [2022-07-14 00:36:36,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:36:36,757 INFO L495 AbstractCegarLoop]: Abstraction has 44766 states and 61733 transitions. [2022-07-14 00:36:36,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.5) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (34), 6 states have call predecessors, (34), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-14 00:36:36,757 INFO L276 IsEmpty]: Start isEmpty. Operand 44766 states and 61733 transitions. [2022-07-14 00:36:36,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2022-07-14 00:36:36,782 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:36:36,783 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:36:36,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-14 00:36:36,783 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:36:36,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:36:36,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1465196128, now seen corresponding path program 1 times [2022-07-14 00:36:36,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:36:36,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024447326] [2022-07-14 00:36:36,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:36:36,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:36:37,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:37,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:36:37,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:37,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:36:37,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:37,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:36:37,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:37,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:36:37,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:37,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:36:37,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:37,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:36:37,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:37,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:36:37,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:37,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:36:37,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:37,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:36:37,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:37,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:36:37,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:37,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:36:37,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:37,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:36:37,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:37,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-14 00:36:37,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:37,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-14 00:36:37,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:37,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-14 00:36:37,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:37,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-14 00:36:37,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:37,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:36:37,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:37,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 00:36:37,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:37,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-14 00:36:37,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:37,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-14 00:36:37,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:37,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-14 00:36:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:37,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-14 00:36:37,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:37,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-14 00:36:37,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:37,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-14 00:36:37,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:37,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-14 00:36:37,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:37,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-07-14 00:36:37,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:37,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-07-14 00:36:37,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:37,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-14 00:36:37,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:37,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-14 00:36:37,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:37,412 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-07-14 00:36:37,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:36:37,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024447326] [2022-07-14 00:36:37,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024447326] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:36:37,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:36:37,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 00:36:37,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723983566] [2022-07-14 00:36:37,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:36:37,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 00:36:37,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:36:37,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 00:36:37,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:36:37,416 INFO L87 Difference]: Start difference. First operand 44766 states and 61733 transitions. Second operand has 8 states, 8 states have (on average 18.375) internal successors, (147), 3 states have internal predecessors, (147), 2 states have call successors, (37), 7 states have call predecessors, (37), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-14 00:36:39,855 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 [] [2022-07-14 00:36:41,886 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:36:44,849 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []