./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--mfd--sm501.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--mfd--sm501.ko-main.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 98b726a200cc424fa7bb1c37464c61d975878210ba7711cf31eb9bd278784d63 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 16:04:59,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 16:04:59,336 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 16:04:59,383 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 16:04:59,383 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 16:04:59,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 16:04:59,386 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 16:04:59,388 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 16:04:59,389 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 16:04:59,393 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 16:04:59,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 16:04:59,394 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 16:04:59,394 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 16:04:59,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 16:04:59,406 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 16:04:59,407 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 16:04:59,407 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 16:04:59,407 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 16:04:59,408 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 16:04:59,409 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 16:04:59,410 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 16:04:59,411 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 16:04:59,411 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 16:04:59,412 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 16:04:59,413 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 16:04:59,415 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 16:04:59,415 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 16:04:59,416 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 16:04:59,416 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 16:04:59,417 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 16:04:59,418 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 16:04:59,418 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 16:04:59,419 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 16:04:59,419 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 16:04:59,420 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 16:04:59,421 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 16:04:59,421 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 16:04:59,422 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 16:04:59,422 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 16:04:59,422 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 16:04:59,423 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 16:04:59,424 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 16:04:59,438 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 16:04:59,442 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 16:04:59,443 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 16:04:59,443 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 16:04:59,443 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 16:04:59,444 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 16:04:59,444 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 16:04:59,444 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 16:04:59,444 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 16:04:59,444 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 16:04:59,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 16:04:59,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 16:04:59,445 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 16:04:59,445 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 16:04:59,445 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 16:04:59,446 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 16:04:59,446 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 16:04:59,446 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 16:04:59,446 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 16:04:59,446 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 16:04:59,446 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 16:04:59,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:04:59,447 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 16:04:59,447 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 16:04:59,447 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 16:04:59,447 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 16:04:59,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 16:04:59,447 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 16:04:59,447 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 16:04:59,448 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 16:04:59,448 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 16:04:59,448 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98b726a200cc424fa7bb1c37464c61d975878210ba7711cf31eb9bd278784d63 [2021-12-21 16:04:59,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 16:04:59,686 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 16:04:59,688 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 16:04:59,688 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 16:04:59,689 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 16:04:59,690 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--mfd--sm501.ko-main.cil.out.i [2021-12-21 16:04:59,738 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20748a79b/946e5923d1ae40a386dec97ab93459a3/FLAG6494ed6eb [2021-12-21 16:05:00,232 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 16:05:00,233 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--mfd--sm501.ko-main.cil.out.i [2021-12-21 16:05:00,256 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20748a79b/946e5923d1ae40a386dec97ab93459a3/FLAG6494ed6eb [2021-12-21 16:05:00,470 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20748a79b/946e5923d1ae40a386dec97ab93459a3 [2021-12-21 16:05:00,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 16:05:00,473 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 16:05:00,474 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 16:05:00,475 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 16:05:00,477 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 16:05:00,478 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:05:00" (1/1) ... [2021-12-21 16:05:00,478 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fd47ad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:05:00, skipping insertion in model container [2021-12-21 16:05:00,479 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:05:00" (1/1) ... [2021-12-21 16:05:00,483 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 16:05:00,536 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 16:05:01,181 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--mfd--sm501.ko-main.cil.out.i[171889,171902] [2021-12-21 16:05:01,232 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:05:01,287 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 16:05:01,568 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--mfd--sm501.ko-main.cil.out.i[171889,171902] [2021-12-21 16:05:01,582 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:05:01,626 INFO L208 MainTranslator]: Completed translation [2021-12-21 16:05:01,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:05:01 WrapperNode [2021-12-21 16:05:01,627 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 16:05:01,629 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 16:05:01,629 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 16:05:01,629 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 16:05:01,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:05:01" (1/1) ... [2021-12-21 16:05:01,691 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:05:01" (1/1) ... [2021-12-21 16:05:01,804 INFO L137 Inliner]: procedures = 180, calls = 1622, calls flagged for inlining = 67, calls inlined = 59, statements flattened = 3042 [2021-12-21 16:05:01,808 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 16:05:01,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 16:05:01,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 16:05:01,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 16:05:01,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:05:01" (1/1) ... [2021-12-21 16:05:01,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:05:01" (1/1) ... [2021-12-21 16:05:01,836 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:05:01" (1/1) ... [2021-12-21 16:05:01,837 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:05:01" (1/1) ... [2021-12-21 16:05:01,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:05:01" (1/1) ... [2021-12-21 16:05:01,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:05:01" (1/1) ... [2021-12-21 16:05:01,931 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:05:01" (1/1) ... [2021-12-21 16:05:01,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 16:05:01,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 16:05:01,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 16:05:01,950 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 16:05:01,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:05:01" (1/1) ... [2021-12-21 16:05:01,956 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:05:01,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 16:05:01,972 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) [2021-12-21 16:05:01,977 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 [2021-12-21 16:05:02,001 INFO L130 BoogieDeclarations]: Found specification of procedure gpiochip_remove [2021-12-21 16:05:02,002 INFO L138 BoogieDeclarations]: Found implementation of procedure gpiochip_remove [2021-12-21 16:05:02,002 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-12-21 16:05:02,002 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-12-21 16:05:02,002 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-21 16:05:02,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-21 16:05:02,002 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_mdelay [2021-12-21 16:05:02,002 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_mdelay [2021-12-21 16:05:02,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_clock_lock_of_sm501_devdata [2021-12-21 16:05:02,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_clock_lock_of_sm501_devdata [2021-12-21 16:05:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_calc_clock [2021-12-21 16:05:02,003 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_calc_clock [2021-12-21 16:05:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_gpio_input [2021-12-21 16:05:02,003 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_gpio_input [2021-12-21 16:05:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_plat_probe [2021-12-21 16:05:02,003 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_plat_probe [2021-12-21 16:05:02,003 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_init_regs [2021-12-21 16:05:02,004 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_init_regs [2021-12-21 16:05:02,004 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_setup_uart_data [2021-12-21 16:05:02,004 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_setup_uart_data [2021-12-21 16:05:02,004 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_plat_remove [2021-12-21 16:05:02,004 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_plat_remove [2021-12-21 16:05:02,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 16:05:02,004 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_set_power [2021-12-21 16:05:02,004 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_set_power [2021-12-21 16:05:02,004 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_gpio_pin2nr [2021-12-21 16:05:02,005 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_gpio_pin2nr [2021-12-21 16:05:02,005 INFO L130 BoogieDeclarations]: Found specification of procedure to_sm501_gpio [2021-12-21 16:05:02,005 INFO L138 BoogieDeclarations]: Found implementation of procedure to_sm501_gpio [2021-12-21 16:05:02,005 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_unit_power [2021-12-21 16:05:02,005 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_unit_power [2021-12-21 16:05:02,005 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_dev_remove [2021-12-21 16:05:02,005 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_dev_remove [2021-12-21 16:05:02,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 16:05:02,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 16:05:02,006 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_gpio_get [2021-12-21 16:05:02,006 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_gpio_get [2021-12-21 16:05:02,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_clock_lock_of_sm501_devdata [2021-12-21 16:05:02,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_clock_lock_of_sm501_devdata [2021-12-21 16:05:02,006 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_create_mem [2021-12-21 16:05:02,006 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_create_mem [2021-12-21 16:05:02,006 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-21 16:05:02,006 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-21 16:05:02,007 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_calc_pll [2021-12-21 16:05:02,007 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_calc_pll [2021-12-21 16:05:02,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 16:05:02,007 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-21 16:05:02,007 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-21 16:05:02,007 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-21 16:05:02,007 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-21 16:05:02,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-21 16:05:02,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-21 16:05:02,008 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2021-12-21 16:05:02,008 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2021-12-21 16:05:02,008 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_create_subio [2021-12-21 16:05:02,008 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_create_subio [2021-12-21 16:05:02,008 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_register_device [2021-12-21 16:05:02,009 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_register_device [2021-12-21 16:05:02,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-21 16:05:02,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-21 16:05:02,010 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_init_dev [2021-12-21 16:05:02,010 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_init_dev [2021-12-21 16:05:02,010 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_gpio_register_chip [2021-12-21 16:05:02,010 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_gpio_register_chip [2021-12-21 16:05:02,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 16:05:02,010 INFO L130 BoogieDeclarations]: Found specification of procedure to_sm_device [2021-12-21 16:05:02,011 INFO L138 BoogieDeclarations]: Found implementation of procedure to_sm_device [2021-12-21 16:05:02,011 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-21 16:05:02,011 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-21 16:05:02,011 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-21 16:05:02,011 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-21 16:05:02,011 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_select_clock [2021-12-21 16:05:02,011 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_select_clock [2021-12-21 16:05:02,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 16:05:02,011 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_create_irq [2021-12-21 16:05:02,012 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_create_irq [2021-12-21 16:05:02,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 16:05:02,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 16:05:02,012 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_sync_regs [2021-12-21 16:05:02,012 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_sync_regs [2021-12-21 16:05:02,012 INFO L130 BoogieDeclarations]: Found specification of procedure release_resource [2021-12-21 16:05:02,013 INFO L138 BoogieDeclarations]: Found implementation of procedure release_resource [2021-12-21 16:05:02,013 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-21 16:05:02,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-21 16:05:02,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 16:05:02,013 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_create_subdev [2021-12-21 16:05:02,013 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_create_subdev [2021-12-21 16:05:02,013 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_gpio_to_dev [2021-12-21 16:05:02,013 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_gpio_to_dev [2021-12-21 16:05:02,013 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2021-12-21 16:05:02,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2021-12-21 16:05:02,014 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-21 16:05:02,014 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-21 16:05:02,014 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2021-12-21 16:05:02,014 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2021-12-21 16:05:02,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 16:05:02,015 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_dump_gate [2021-12-21 16:05:02,015 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_dump_gate [2021-12-21 16:05:02,015 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2021-12-21 16:05:02,016 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2021-12-21 16:05:02,016 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-21 16:05:02,016 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-21 16:05:02,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 16:05:02,016 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2021-12-21 16:05:02,016 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2021-12-21 16:05:02,017 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_set_clock [2021-12-21 16:05:02,017 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_set_clock [2021-12-21 16:05:02,017 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_modify_reg [2021-12-21 16:05:02,017 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_modify_reg [2021-12-21 16:05:02,017 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-21 16:05:02,017 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-21 16:05:02,017 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-21 16:05:02,017 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-21 16:05:02,018 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-21 16:05:02,018 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-21 16:05:02,018 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_init_reg [2021-12-21 16:05:02,018 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_init_reg [2021-12-21 16:05:02,018 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-21 16:05:02,019 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-21 16:05:02,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 16:05:02,020 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-12-21 16:05:02,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-12-21 16:05:02,021 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_plat_resume [2021-12-21 16:05:02,021 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_plat_resume [2021-12-21 16:05:02,022 INFO L130 BoogieDeclarations]: Found specification of procedure sm501_gpio_ensure_gpio [2021-12-21 16:05:02,022 INFO L138 BoogieDeclarations]: Found implementation of procedure sm501_gpio_ensure_gpio [2021-12-21 16:05:02,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 16:05:02,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 16:05:02,443 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 16:05:02,445 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 16:05:04,835 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 16:05:04,844 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 16:05:04,844 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-21 16:05:04,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:05:04 BoogieIcfgContainer [2021-12-21 16:05:04,847 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 16:05:04,848 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 16:05:04,848 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 16:05:04,850 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 16:05:04,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 04:05:00" (1/3) ... [2021-12-21 16:05:04,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2557a361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:05:04, skipping insertion in model container [2021-12-21 16:05:04,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:05:01" (2/3) ... [2021-12-21 16:05:04,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2557a361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:05:04, skipping insertion in model container [2021-12-21 16:05:04,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:05:04" (3/3) ... [2021-12-21 16:05:04,852 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--mfd--sm501.ko-main.cil.out.i [2021-12-21 16:05:04,855 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 16:05:04,855 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 16:05:04,887 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 16:05:04,892 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 16:05:04,892 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 16:05:04,916 INFO L276 IsEmpty]: Start isEmpty. Operand has 936 states, 633 states have (on average 1.282780410742496) internal successors, (812), 647 states have internal predecessors, (812), 243 states have call successors, (243), 58 states have call predecessors, (243), 58 states have return successors, (243), 243 states have call predecessors, (243), 243 states have call successors, (243) [2021-12-21 16:05:04,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-21 16:05:04,924 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:05:04,925 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:05:04,925 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:05:04,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:05:04,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1572086446, now seen corresponding path program 1 times [2021-12-21 16:05:04,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:05:04,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820337488] [2021-12-21 16:05:04,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:04,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:05:05,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:05,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:05:05,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:05:05,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820337488] [2021-12-21 16:05:05,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820337488] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:05:05,274 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:05:05,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:05:05,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428870689] [2021-12-21 16:05:05,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:05:05,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:05:05,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:05:05,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:05:05,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:05,313 INFO L87 Difference]: Start difference. First operand has 936 states, 633 states have (on average 1.282780410742496) internal successors, (812), 647 states have internal predecessors, (812), 243 states have call successors, (243), 58 states have call predecessors, (243), 58 states have return successors, (243), 243 states have call predecessors, (243), 243 states have call successors, (243) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:05:05,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:05:05,581 INFO L93 Difference]: Finished difference Result 2776 states and 3970 transitions. [2021-12-21 16:05:05,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:05:05,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-12-21 16:05:05,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:05:05,609 INFO L225 Difference]: With dead ends: 2776 [2021-12-21 16:05:05,609 INFO L226 Difference]: Without dead ends: 1839 [2021-12-21 16:05:05,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:05,625 INFO L933 BasicCegarLoop]: 1526 mSDtfsCounter, 1255 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1255 SdHoareTripleChecker+Valid, 2799 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:05:05,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1255 Valid, 2799 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:05:05,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1839 states. [2021-12-21 16:05:05,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1839 to 1835. [2021-12-21 16:05:05,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1835 states, 1240 states have (on average 1.278225806451613) internal successors, (1585), 1259 states have internal predecessors, (1585), 480 states have call successors, (480), 115 states have call predecessors, (480), 114 states have return successors, (474), 474 states have call predecessors, (474), 474 states have call successors, (474) [2021-12-21 16:05:05,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1835 states to 1835 states and 2539 transitions. [2021-12-21 16:05:05,777 INFO L78 Accepts]: Start accepts. Automaton has 1835 states and 2539 transitions. Word has length 18 [2021-12-21 16:05:05,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:05:05,778 INFO L470 AbstractCegarLoop]: Abstraction has 1835 states and 2539 transitions. [2021-12-21 16:05:05,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:05:05,779 INFO L276 IsEmpty]: Start isEmpty. Operand 1835 states and 2539 transitions. [2021-12-21 16:05:05,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-12-21 16:05:05,786 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:05:05,787 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:05:05,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 16:05:05,788 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:05:05,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:05:05,789 INFO L85 PathProgramCache]: Analyzing trace with hash -686972783, now seen corresponding path program 1 times [2021-12-21 16:05:05,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:05:05,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431386478] [2021-12-21 16:05:05,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:05,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:05:05,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:05,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:05:05,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:05:05,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431386478] [2021-12-21 16:05:05,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431386478] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:05:05,888 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:05:05,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:05:05,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619612426] [2021-12-21 16:05:05,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:05:05,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:05:05,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:05:05,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:05:05,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:05,890 INFO L87 Difference]: Start difference. First operand 1835 states and 2539 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:05:05,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:05:05,950 INFO L93 Difference]: Finished difference Result 1857 states and 2565 transitions. [2021-12-21 16:05:05,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:05:05,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-12-21 16:05:05,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:05:05,958 INFO L225 Difference]: With dead ends: 1857 [2021-12-21 16:05:05,958 INFO L226 Difference]: Without dead ends: 1846 [2021-12-21 16:05:05,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:05,960 INFO L933 BasicCegarLoop]: 1297 mSDtfsCounter, 1280 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1280 SdHoareTripleChecker+Valid, 1310 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 16:05:05,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1280 Valid, 1310 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 16:05:05,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1846 states. [2021-12-21 16:05:06,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1846 to 1835. [2021-12-21 16:05:06,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1835 states, 1240 states have (on average 1.2774193548387096) internal successors, (1584), 1259 states have internal predecessors, (1584), 480 states have call successors, (480), 115 states have call predecessors, (480), 114 states have return successors, (474), 474 states have call predecessors, (474), 474 states have call successors, (474) [2021-12-21 16:05:06,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1835 states to 1835 states and 2538 transitions. [2021-12-21 16:05:06,075 INFO L78 Accepts]: Start accepts. Automaton has 1835 states and 2538 transitions. Word has length 21 [2021-12-21 16:05:06,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:05:06,075 INFO L470 AbstractCegarLoop]: Abstraction has 1835 states and 2538 transitions. [2021-12-21 16:05:06,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:05:06,076 INFO L276 IsEmpty]: Start isEmpty. Operand 1835 states and 2538 transitions. [2021-12-21 16:05:06,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-12-21 16:05:06,077 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:05:06,077 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:05:06,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 16:05:06,077 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:05:06,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:05:06,078 INFO L85 PathProgramCache]: Analyzing trace with hash -629714481, now seen corresponding path program 1 times [2021-12-21 16:05:06,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:05:06,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662584529] [2021-12-21 16:05:06,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:06,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:05:06,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:06,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:05:06,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:05:06,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662584529] [2021-12-21 16:05:06,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662584529] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:05:06,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:05:06,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:05:06,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852033155] [2021-12-21 16:05:06,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:05:06,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:05:06,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:05:06,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:05:06,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:06,160 INFO L87 Difference]: Start difference. First operand 1835 states and 2538 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:05:06,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:05:06,223 INFO L93 Difference]: Finished difference Result 1885 states and 2582 transitions. [2021-12-21 16:05:06,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:05:06,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-12-21 16:05:06,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:05:06,232 INFO L225 Difference]: With dead ends: 1885 [2021-12-21 16:05:06,232 INFO L226 Difference]: Without dead ends: 1881 [2021-12-21 16:05:06,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:06,234 INFO L933 BasicCegarLoop]: 1280 mSDtfsCounter, 1124 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 1437 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 16:05:06,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1124 Valid, 1437 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 16:05:06,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1881 states. [2021-12-21 16:05:06,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1881 to 1879. [2021-12-21 16:05:06,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1879 states, 1274 states have (on average 1.2708006279434851) internal successors, (1619), 1291 states have internal predecessors, (1619), 480 states have call successors, (480), 125 states have call predecessors, (480), 124 states have return successors, (476), 476 states have call predecessors, (476), 476 states have call successors, (476) [2021-12-21 16:05:06,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1879 states to 1879 states and 2575 transitions. [2021-12-21 16:05:06,289 INFO L78 Accepts]: Start accepts. Automaton has 1879 states and 2575 transitions. Word has length 21 [2021-12-21 16:05:06,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:05:06,290 INFO L470 AbstractCegarLoop]: Abstraction has 1879 states and 2575 transitions. [2021-12-21 16:05:06,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:05:06,290 INFO L276 IsEmpty]: Start isEmpty. Operand 1879 states and 2575 transitions. [2021-12-21 16:05:06,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-21 16:05:06,291 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:05:06,291 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:05:06,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 16:05:06,292 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:05:06,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:05:06,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1953181339, now seen corresponding path program 1 times [2021-12-21 16:05:06,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:05:06,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237621562] [2021-12-21 16:05:06,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:06,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:05:06,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:06,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:05:06,429 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:05:06,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237621562] [2021-12-21 16:05:06,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237621562] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:05:06,429 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:05:06,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:05:06,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655227311] [2021-12-21 16:05:06,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:05:06,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:05:06,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:05:06,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:05:06,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:06,431 INFO L87 Difference]: Start difference. First operand 1879 states and 2575 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:05:06,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:05:06,485 INFO L93 Difference]: Finished difference Result 1881 states and 2576 transitions. [2021-12-21 16:05:06,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:05:06,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-12-21 16:05:06,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:05:06,493 INFO L225 Difference]: With dead ends: 1881 [2021-12-21 16:05:06,493 INFO L226 Difference]: Without dead ends: 1878 [2021-12-21 16:05:06,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:06,494 INFO L933 BasicCegarLoop]: 1278 mSDtfsCounter, 1260 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1260 SdHoareTripleChecker+Valid, 1278 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 16:05:06,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1260 Valid, 1278 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 16:05:06,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1878 states. [2021-12-21 16:05:06,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1878 to 1878. [2021-12-21 16:05:06,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1878 states, 1274 states have (on average 1.2700156985871272) internal successors, (1618), 1290 states have internal predecessors, (1618), 479 states have call successors, (479), 125 states have call predecessors, (479), 124 states have return successors, (476), 476 states have call predecessors, (476), 476 states have call successors, (476) [2021-12-21 16:05:06,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1878 states to 1878 states and 2573 transitions. [2021-12-21 16:05:06,540 INFO L78 Accepts]: Start accepts. Automaton has 1878 states and 2573 transitions. Word has length 22 [2021-12-21 16:05:06,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:05:06,541 INFO L470 AbstractCegarLoop]: Abstraction has 1878 states and 2573 transitions. [2021-12-21 16:05:06,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:05:06,541 INFO L276 IsEmpty]: Start isEmpty. Operand 1878 states and 2573 transitions. [2021-12-21 16:05:06,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-21 16:05:06,542 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:05:06,542 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:05:06,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 16:05:06,542 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:05:06,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:05:06,543 INFO L85 PathProgramCache]: Analyzing trace with hash 418578002, now seen corresponding path program 1 times [2021-12-21 16:05:06,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:05:06,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24415861] [2021-12-21 16:05:06,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:06,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:05:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:06,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:05:06,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:05:06,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24415861] [2021-12-21 16:05:06,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24415861] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:05:06,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:05:06,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:05:06,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056922378] [2021-12-21 16:05:06,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:05:06,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:05:06,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:05:06,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:05:06,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:06,612 INFO L87 Difference]: Start difference. First operand 1878 states and 2573 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:05:06,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:05:06,680 INFO L93 Difference]: Finished difference Result 1880 states and 2574 transitions. [2021-12-21 16:05:06,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:05:06,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-12-21 16:05:06,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:05:06,687 INFO L225 Difference]: With dead ends: 1880 [2021-12-21 16:05:06,687 INFO L226 Difference]: Without dead ends: 1877 [2021-12-21 16:05:06,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:06,689 INFO L933 BasicCegarLoop]: 1276 mSDtfsCounter, 1257 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1257 SdHoareTripleChecker+Valid, 1276 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 16:05:06,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1257 Valid, 1276 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 16:05:06,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1877 states. [2021-12-21 16:05:06,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1877 to 1877. [2021-12-21 16:05:06,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1877 states, 1274 states have (on average 1.2692307692307692) internal successors, (1617), 1289 states have internal predecessors, (1617), 478 states have call successors, (478), 125 states have call predecessors, (478), 124 states have return successors, (476), 476 states have call predecessors, (476), 476 states have call successors, (476) [2021-12-21 16:05:06,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1877 states to 1877 states and 2571 transitions. [2021-12-21 16:05:06,737 INFO L78 Accepts]: Start accepts. Automaton has 1877 states and 2571 transitions. Word has length 23 [2021-12-21 16:05:06,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:05:06,737 INFO L470 AbstractCegarLoop]: Abstraction has 1877 states and 2571 transitions. [2021-12-21 16:05:06,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:05:06,738 INFO L276 IsEmpty]: Start isEmpty. Operand 1877 states and 2571 transitions. [2021-12-21 16:05:06,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-21 16:05:06,738 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:05:06,738 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:05:06,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 16:05:06,739 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:05:06,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:05:06,739 INFO L85 PathProgramCache]: Analyzing trace with hash 90519678, now seen corresponding path program 1 times [2021-12-21 16:05:06,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:05:06,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264549475] [2021-12-21 16:05:06,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:06,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:05:06,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:06,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:05:06,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:05:06,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264549475] [2021-12-21 16:05:06,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264549475] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:05:06,805 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:05:06,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:05:06,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410751855] [2021-12-21 16:05:06,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:05:06,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:05:06,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:05:06,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:05:06,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:06,807 INFO L87 Difference]: Start difference. First operand 1877 states and 2571 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:05:06,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:05:06,860 INFO L93 Difference]: Finished difference Result 1879 states and 2572 transitions. [2021-12-21 16:05:06,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:05:06,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-12-21 16:05:06,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:05:06,870 INFO L225 Difference]: With dead ends: 1879 [2021-12-21 16:05:06,870 INFO L226 Difference]: Without dead ends: 1867 [2021-12-21 16:05:06,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:06,871 INFO L933 BasicCegarLoop]: 1275 mSDtfsCounter, 1254 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1254 SdHoareTripleChecker+Valid, 1275 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 [2021-12-21 16:05:06,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1254 Valid, 1275 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 16:05:06,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1867 states. [2021-12-21 16:05:06,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1867 to 1867. [2021-12-21 16:05:06,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1867 states, 1265 states have (on average 1.2695652173913043) internal successors, (1606), 1279 states have internal predecessors, (1606), 477 states have call successors, (477), 125 states have call predecessors, (477), 124 states have return successors, (476), 476 states have call predecessors, (476), 476 states have call successors, (476) [2021-12-21 16:05:06,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1867 states to 1867 states and 2559 transitions. [2021-12-21 16:05:06,926 INFO L78 Accepts]: Start accepts. Automaton has 1867 states and 2559 transitions. Word has length 24 [2021-12-21 16:05:06,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:05:06,926 INFO L470 AbstractCegarLoop]: Abstraction has 1867 states and 2559 transitions. [2021-12-21 16:05:06,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:05:06,927 INFO L276 IsEmpty]: Start isEmpty. Operand 1867 states and 2559 transitions. [2021-12-21 16:05:06,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-12-21 16:05:06,934 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:05:06,934 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:05:06,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-21 16:05:06,935 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:05:06,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:05:06,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1100131312, now seen corresponding path program 1 times [2021-12-21 16:05:06,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:05:06,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052786636] [2021-12-21 16:05:06,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:06,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:05:07,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 16:05:07,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:07,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:07,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-21 16:05:07,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:07,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-21 16:05:07,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-21 16:05:07,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-21 16:05:07,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-21 16:05:07,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-21 16:05:07,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-21 16:05:07,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-21 16:05:07,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:07,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-21 16:05:07,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 16:05:07,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-21 16:05:07,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 16:05:07,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-21 16:05:07,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:07,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:05:07,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-21 16:05:07,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:07,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:05:07,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-21 16:05:07,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:07,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:05:07,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-21 16:05:07,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:07,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-21 16:05:07,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-21 16:05:07,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-21 16:05:07,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-21 16:05:07,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-21 16:05:07,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-21 16:05:07,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-21 16:05:07,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-21 16:05:07,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,275 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2021-12-21 16:05:07,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:05:07,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052786636] [2021-12-21 16:05:07,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052786636] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 16:05:07,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161630691] [2021-12-21 16:05:07,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:07,276 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 16:05:07,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 16:05:07,278 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) [2021-12-21 16:05:07,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-21 16:05:07,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 3298 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 16:05:07,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 16:05:08,224 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2021-12-21 16:05:08,224 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 16:05:08,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161630691] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:05:08,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 16:05:08,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2021-12-21 16:05:08,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780031978] [2021-12-21 16:05:08,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:05:08,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:05:08,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:05:08,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:05:08,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-21 16:05:08,227 INFO L87 Difference]: Start difference. First operand 1867 states and 2559 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-12-21 16:05:08,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:05:08,284 INFO L93 Difference]: Finished difference Result 3733 states and 5129 transitions. [2021-12-21 16:05:08,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:05:08,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 240 [2021-12-21 16:05:08,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:05:08,293 INFO L225 Difference]: With dead ends: 3733 [2021-12-21 16:05:08,294 INFO L226 Difference]: Without dead ends: 1869 [2021-12-21 16:05:08,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-21 16:05:08,301 INFO L933 BasicCegarLoop]: 1264 mSDtfsCounter, 0 mSDsluCounter, 1260 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2524 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 16:05:08,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2524 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 16:05:08,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1869 states. [2021-12-21 16:05:08,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1869 to 1869. [2021-12-21 16:05:08,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1869 states, 1267 states have (on average 1.2691397000789266) internal successors, (1608), 1281 states have internal predecessors, (1608), 477 states have call successors, (477), 125 states have call predecessors, (477), 124 states have return successors, (476), 476 states have call predecessors, (476), 476 states have call successors, (476) [2021-12-21 16:05:08,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1869 states to 1869 states and 2561 transitions. [2021-12-21 16:05:08,365 INFO L78 Accepts]: Start accepts. Automaton has 1869 states and 2561 transitions. Word has length 240 [2021-12-21 16:05:08,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:05:08,365 INFO L470 AbstractCegarLoop]: Abstraction has 1869 states and 2561 transitions. [2021-12-21 16:05:08,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-12-21 16:05:08,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1869 states and 2561 transitions. [2021-12-21 16:05:08,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-12-21 16:05:08,372 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:05:08,372 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:05:08,419 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-21 16:05:08,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 16:05:08,596 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:05:08,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:05:08,596 INFO L85 PathProgramCache]: Analyzing trace with hash -583059691, now seen corresponding path program 1 times [2021-12-21 16:05:08,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:05:08,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551166968] [2021-12-21 16:05:08,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:08,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:05:08,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:08,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 16:05:08,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:08,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:08,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:08,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:08,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:08,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-21 16:05:08,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:08,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-21 16:05:08,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:08,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-21 16:05:08,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:08,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-21 16:05:08,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:08,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-21 16:05:08,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:08,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-21 16:05:08,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:08,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-21 16:05:08,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:08,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:08,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:08,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-21 16:05:08,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:08,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-21 16:05:08,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:08,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-21 16:05:08,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:08,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-21 16:05:08,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:08,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-21 16:05:08,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:08,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:08,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:08,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:05:08,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:08,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-21 16:05:08,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:08,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:08,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:08,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:05:08,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:08,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-21 16:05:08,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:08,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:08,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:08,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:05:08,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:08,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-21 16:05:08,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:08,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:08,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:08,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-21 16:05:08,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:08,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-21 16:05:08,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:08,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-21 16:05:08,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:08,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-21 16:05:08,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:08,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-21 16:05:08,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:08,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-21 16:05:08,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:08,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-21 16:05:08,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:08,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-21 16:05:08,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:08,872 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2021-12-21 16:05:08,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:05:08,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551166968] [2021-12-21 16:05:08,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551166968] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:05:08,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:05:08,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:05:08,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613147315] [2021-12-21 16:05:08,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:05:08,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:05:08,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:05:08,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:05:08,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:05:08,875 INFO L87 Difference]: Start difference. First operand 1869 states and 2561 transitions. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (33), 5 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-21 16:05:13,816 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:05:15,734 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:05:16,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:05:16,359 INFO L93 Difference]: Finished difference Result 6157 states and 8630 transitions. [2021-12-21 16:05:16,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-21 16:05:16,360 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (33), 5 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 213 [2021-12-21 16:05:16,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:05:16,377 INFO L225 Difference]: With dead ends: 6157 [2021-12-21 16:05:16,377 INFO L226 Difference]: Without dead ends: 4291 [2021-12-21 16:05:16,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-12-21 16:05:16,382 INFO L933 BasicCegarLoop]: 1305 mSDtfsCounter, 2566 mSDsluCounter, 1903 mSDsCounter, 0 mSdLazyCounter, 1733 mSolverCounterSat, 2186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2833 SdHoareTripleChecker+Valid, 3208 SdHoareTripleChecker+Invalid, 3919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2186 IncrementalHoareTripleChecker+Valid, 1733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2021-12-21 16:05:16,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2833 Valid, 3208 Invalid, 3919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2186 Valid, 1733 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2021-12-21 16:05:16,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4291 states. [2021-12-21 16:05:16,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4291 to 3404. [2021-12-21 16:05:16,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3404 states, 2306 states have (on average 1.264093668690373) internal successors, (2915), 2328 states have internal predecessors, (2915), 865 states have call successors, (865), 233 states have call predecessors, (865), 232 states have return successors, (864), 864 states have call predecessors, (864), 864 states have call successors, (864) [2021-12-21 16:05:16,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3404 states to 3404 states and 4644 transitions. [2021-12-21 16:05:16,503 INFO L78 Accepts]: Start accepts. Automaton has 3404 states and 4644 transitions. Word has length 213 [2021-12-21 16:05:16,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:05:16,504 INFO L470 AbstractCegarLoop]: Abstraction has 3404 states and 4644 transitions. [2021-12-21 16:05:16,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (33), 5 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-21 16:05:16,504 INFO L276 IsEmpty]: Start isEmpty. Operand 3404 states and 4644 transitions. [2021-12-21 16:05:16,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-12-21 16:05:16,512 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:05:16,513 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:05:16,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-21 16:05:16,513 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:05:16,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:05:16,514 INFO L85 PathProgramCache]: Analyzing trace with hash -97929367, now seen corresponding path program 1 times [2021-12-21 16:05:16,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:05:16,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089256613] [2021-12-21 16:05:16,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:16,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:05:16,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:16,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-21 16:05:16,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:16,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:16,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:16,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:16,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-21 16:05:16,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:16,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-21 16:05:16,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:16,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-21 16:05:16,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:16,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-21 16:05:16,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:16,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-21 16:05:16,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:16,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-21 16:05:16,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:16,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-21 16:05:16,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:16,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:16,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:16,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-21 16:05:16,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:16,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-21 16:05:16,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:16,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-21 16:05:16,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:16,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 16:05:16,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:16,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-21 16:05:16,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:16,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:16,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:16,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:05:16,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:16,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-21 16:05:16,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:16,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:16,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:16,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:05:16,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:16,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-21 16:05:16,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:16,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:16,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:16,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:05:16,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:16,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-21 16:05:16,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:16,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:16,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:16,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-21 16:05:16,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:16,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-21 16:05:16,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:16,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-21 16:05:16,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:16,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-21 16:05:16,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:16,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-21 16:05:16,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:16,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-21 16:05:16,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:16,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-21 16:05:16,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:16,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-21 16:05:16,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:16,785 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2021-12-21 16:05:16,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:05:16,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089256613] [2021-12-21 16:05:16,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089256613] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:05:16,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:05:16,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:05:16,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502112567] [2021-12-21 16:05:16,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:05:16,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:05:16,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:05:16,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:05:16,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:05:16,787 INFO L87 Difference]: Start difference. First operand 3404 states and 4644 transitions. Second operand has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (33), 5 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-21 16:05:20,264 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:05:25,108 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:05:25,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:05:25,792 INFO L93 Difference]: Finished difference Result 9737 states and 13610 transitions. [2021-12-21 16:05:25,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-21 16:05:25,793 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (33), 5 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 229 [2021-12-21 16:05:25,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:05:25,824 INFO L225 Difference]: With dead ends: 9737 [2021-12-21 16:05:25,824 INFO L226 Difference]: Without dead ends: 6336 [2021-12-21 16:05:25,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-12-21 16:05:25,837 INFO L933 BasicCegarLoop]: 2096 mSDtfsCounter, 2002 mSDsluCounter, 2604 mSDsCounter, 0 mSdLazyCounter, 1986 mSolverCounterSat, 1608 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2266 SdHoareTripleChecker+Valid, 4700 SdHoareTripleChecker+Invalid, 3595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1608 IncrementalHoareTripleChecker+Valid, 1986 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2021-12-21 16:05:25,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2266 Valid, 4700 Invalid, 3595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1608 Valid, 1986 Invalid, 1 Unknown, 0 Unchecked, 8.7s Time] [2021-12-21 16:05:25,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6336 states. [2021-12-21 16:05:26,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6336 to 5037. [2021-12-21 16:05:26,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5037 states, 3417 states have (on average 1.2630962832894352) internal successors, (4316), 3449 states have internal predecessors, (4316), 1275 states have call successors, (1275), 345 states have call predecessors, (1275), 344 states have return successors, (1274), 1274 states have call predecessors, (1274), 1274 states have call successors, (1274) [2021-12-21 16:05:26,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5037 states to 5037 states and 6865 transitions. [2021-12-21 16:05:26,072 INFO L78 Accepts]: Start accepts. Automaton has 5037 states and 6865 transitions. Word has length 229 [2021-12-21 16:05:26,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:05:26,073 INFO L470 AbstractCegarLoop]: Abstraction has 5037 states and 6865 transitions. [2021-12-21 16:05:26,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (33), 5 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-21 16:05:26,074 INFO L276 IsEmpty]: Start isEmpty. Operand 5037 states and 6865 transitions. [2021-12-21 16:05:26,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-12-21 16:05:26,095 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:05:26,095 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-21 16:05:26,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-21 16:05:26,096 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:05:26,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:05:26,096 INFO L85 PathProgramCache]: Analyzing trace with hash 919399273, now seen corresponding path program 1 times [2021-12-21 16:05:26,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:05:26,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921956045] [2021-12-21 16:05:26,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:26,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:05:26,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 16:05:26,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:26,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:26,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-21 16:05:26,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:26,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:26,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 16:05:26,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:26,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:26,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-21 16:05:26,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-21 16:05:26,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-21 16:05:26,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-21 16:05:26,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-21 16:05:26,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 16:05:26,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-21 16:05:26,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:26,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-21 16:05:26,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-21 16:05:26,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-21 16:05:26,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-21 16:05:26,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-21 16:05:26,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:26,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:05:26,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-21 16:05:26,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:26,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:05:26,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-21 16:05:26,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:26,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:05:26,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-12-21 16:05:26,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:26,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-21 16:05:26,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-12-21 16:05:26,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-21 16:05:26,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-21 16:05:26,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-21 16:05:26,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-21 16:05:26,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-21 16:05:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-12-21 16:05:26,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,374 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2021-12-21 16:05:26,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:05:26,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921956045] [2021-12-21 16:05:26,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921956045] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 16:05:26,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104992585] [2021-12-21 16:05:26,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:26,375 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 16:05:26,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 16:05:26,376 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) [2021-12-21 16:05:26,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-21 16:05:26,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:26,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 3544 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 16:05:26,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 16:05:27,339 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2021-12-21 16:05:27,339 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 16:05:27,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104992585] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:05:27,340 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 16:05:27,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2021-12-21 16:05:27,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081066662] [2021-12-21 16:05:27,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:05:27,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:05:27,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:05:27,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:05:27,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-21 16:05:27,341 INFO L87 Difference]: Start difference. First operand 5037 states and 6865 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-21 16:05:27,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:05:27,473 INFO L93 Difference]: Finished difference Result 10077 states and 13783 transitions. [2021-12-21 16:05:27,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:05:27,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 281 [2021-12-21 16:05:27,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:05:27,503 INFO L225 Difference]: With dead ends: 10077 [2021-12-21 16:05:27,503 INFO L226 Difference]: Without dead ends: 5043 [2021-12-21 16:05:27,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-21 16:05:27,521 INFO L933 BasicCegarLoop]: 1260 mSDtfsCounter, 63 mSDsluCounter, 1168 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 2428 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 16:05:27,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 2428 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 16:05:27,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5043 states. [2021-12-21 16:05:27,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5043 to 5043. [2021-12-21 16:05:27,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5043 states, 3423 states have (on average 1.2608822670172364) internal successors, (4316), 3455 states have internal predecessors, (4316), 1275 states have call successors, (1275), 345 states have call predecessors, (1275), 344 states have return successors, (1274), 1274 states have call predecessors, (1274), 1274 states have call successors, (1274) [2021-12-21 16:05:27,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5043 states to 5043 states and 6865 transitions. [2021-12-21 16:05:27,668 INFO L78 Accepts]: Start accepts. Automaton has 5043 states and 6865 transitions. Word has length 281 [2021-12-21 16:05:27,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:05:27,669 INFO L470 AbstractCegarLoop]: Abstraction has 5043 states and 6865 transitions. [2021-12-21 16:05:27,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-21 16:05:27,670 INFO L276 IsEmpty]: Start isEmpty. Operand 5043 states and 6865 transitions. [2021-12-21 16:05:27,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-12-21 16:05:27,683 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:05:27,683 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 6, 6, 6, 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, 1, 1] [2021-12-21 16:05:27,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-21 16:05:27,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-21 16:05:27,899 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:05:27,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:05:27,900 INFO L85 PathProgramCache]: Analyzing trace with hash -944674354, now seen corresponding path program 1 times [2021-12-21 16:05:27,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:05:27,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034501529] [2021-12-21 16:05:27,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:27,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:05:27,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 16:05:28,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:28,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-21 16:05:28,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:28,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-21 16:05:28,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:28,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-21 16:05:28,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-21 16:05:28,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-21 16:05:28,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-21 16:05:28,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 16:05:28,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-21 16:05:28,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-21 16:05:28,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-21 16:05:28,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 16:05:28,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:28,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:28,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 16:05:28,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-21 16:05:28,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-21 16:05:28,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-21 16:05:28,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-21 16:05:28,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:28,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:05:28,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-21 16:05:28,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:28,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:05:28,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-21 16:05:28,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:28,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:05:28,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-21 16:05:28,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:28,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:28,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-21 16:05:28,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-21 16:05:28,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:28,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-21 16:05:28,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-21 16:05:28,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-21 16:05:28,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-21 16:05:28,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-12-21 16:05:28,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:28,238 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2021-12-21 16:05:28,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:05:28,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034501529] [2021-12-21 16:05:28,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034501529] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:05:28,238 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:05:28,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-21 16:05:28,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768137740] [2021-12-21 16:05:28,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:05:28,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-21 16:05:28,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:05:28,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-21 16:05:28,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-21 16:05:28,240 INFO L87 Difference]: Start difference. First operand 5043 states and 6865 transitions. Second operand has 8 states, 8 states have (on average 15.25) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (39), 7 states have call predecessors, (39), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-12-21 16:05:33,701 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:05:35,003 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:05:36,527 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:05:38,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:05:39,684 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:05:40,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:05:40,685 INFO L93 Difference]: Finished difference Result 16326 states and 22984 transitions. [2021-12-21 16:05:40,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-21 16:05:40,686 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.25) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (39), 7 states have call predecessors, (39), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 265 [2021-12-21 16:05:40,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:05:40,772 INFO L225 Difference]: With dead ends: 16326 [2021-12-21 16:05:40,772 INFO L226 Difference]: Without dead ends: 11286 [2021-12-21 16:05:40,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2021-12-21 16:05:40,807 INFO L933 BasicCegarLoop]: 1849 mSDtfsCounter, 2990 mSDsluCounter, 2978 mSDsCounter, 0 mSdLazyCounter, 2991 mSolverCounterSat, 3206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3247 SdHoareTripleChecker+Valid, 4827 SdHoareTripleChecker+Invalid, 6197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3206 IncrementalHoareTripleChecker+Valid, 2991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2021-12-21 16:05:40,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3247 Valid, 4827 Invalid, 6197 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3206 Valid, 2991 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time] [2021-12-21 16:05:40,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11286 states. [2021-12-21 16:05:41,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11286 to 8627. [2021-12-21 16:05:41,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8627 states, 5847 states have (on average 1.2606464853771164) internal successors, (7371), 5897 states have internal predecessors, (7371), 2181 states have call successors, (2181), 599 states have call predecessors, (2181), 598 states have return successors, (2180), 2180 states have call predecessors, (2180), 2180 states have call successors, (2180) [2021-12-21 16:05:41,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8627 states to 8627 states and 11732 transitions. [2021-12-21 16:05:41,522 INFO L78 Accepts]: Start accepts. Automaton has 8627 states and 11732 transitions. Word has length 265 [2021-12-21 16:05:41,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:05:41,523 INFO L470 AbstractCegarLoop]: Abstraction has 8627 states and 11732 transitions. [2021-12-21 16:05:41,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.25) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (39), 7 states have call predecessors, (39), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-12-21 16:05:41,523 INFO L276 IsEmpty]: Start isEmpty. Operand 8627 states and 11732 transitions. [2021-12-21 16:05:41,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2021-12-21 16:05:41,543 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:05:41,543 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:05:41,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-21 16:05:41,543 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:05:41,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:05:41,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1963507408, now seen corresponding path program 1 times [2021-12-21 16:05:41,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:05:41,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736181588] [2021-12-21 16:05:41,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:41,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:05:41,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:41,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-21 16:05:41,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:41,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:41,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:41,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:41,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:41,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-21 16:05:41,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:41,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:41,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:41,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:41,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:41,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-21 16:05:41,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:41,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-21 16:05:41,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:41,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 16:05:41,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:41,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-21 16:05:41,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:41,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-21 16:05:41,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:41,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-21 16:05:41,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:41,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 16:05:41,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:41,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:41,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:41,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 16:05:41,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:41,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 16:05:41,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:41,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-21 16:05:41,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:41,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-21 16:05:41,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:41,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-21 16:05:41,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:41,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:41,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:41,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:05:41,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:41,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-21 16:05:41,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:41,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:41,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:41,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:05:41,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:41,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-21 16:05:41,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:41,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:41,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:41,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:05:41,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:41,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-21 16:05:41,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:41,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:41,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:41,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-21 16:05:41,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:41,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-21 16:05:41,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:41,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-21 16:05:41,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:41,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-21 16:05:41,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:05:41,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736181588] [2021-12-21 16:05:41,754 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2021-12-21 16:05:41,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545919016] [2021-12-21 16:05:41,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:41,754 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 16:05:41,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 16:05:41,755 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) [2021-12-21 16:05:41,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-21 16:05:42,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:42,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 3409 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 16:05:42,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 16:05:42,688 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-12-21 16:05:42,688 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 16:05:42,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545919016] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:05:42,689 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:05:42,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:05:42,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113009340] [2021-12-21 16:05:42,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:05:42,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:05:42,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:05:42,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:05:42,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-21 16:05:42,691 INFO L87 Difference]: Start difference. First operand 8627 states and 11732 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-21 16:05:43,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:05:43,056 INFO L93 Difference]: Finished difference Result 20770 states and 28249 transitions. [2021-12-21 16:05:43,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:05:43,057 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 258 [2021-12-21 16:05:43,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:05:43,094 INFO L225 Difference]: With dead ends: 20770 [2021-12-21 16:05:43,095 INFO L226 Difference]: Without dead ends: 12146 [2021-12-21 16:05:43,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-21 16:05:43,120 INFO L933 BasicCegarLoop]: 1883 mSDtfsCounter, 1239 mSDsluCounter, 1212 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1239 SdHoareTripleChecker+Valid, 3095 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:05:43,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1239 Valid, 3095 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:05:43,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12146 states. [2021-12-21 16:05:43,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12146 to 12139. [2021-12-21 16:05:43,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12139 states, 8231 states have (on average 1.2607216620094763) internal successors, (10377), 8301 states have internal predecessors, (10377), 3065 states have call successors, (3065), 843 states have call predecessors, (3065), 842 states have return successors, (3064), 3064 states have call predecessors, (3064), 3064 states have call successors, (3064) [2021-12-21 16:05:43,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12139 states to 12139 states and 16506 transitions. [2021-12-21 16:05:43,669 INFO L78 Accepts]: Start accepts. Automaton has 12139 states and 16506 transitions. Word has length 258 [2021-12-21 16:05:43,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:05:43,670 INFO L470 AbstractCegarLoop]: Abstraction has 12139 states and 16506 transitions. [2021-12-21 16:05:43,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-21 16:05:43,671 INFO L276 IsEmpty]: Start isEmpty. Operand 12139 states and 16506 transitions. [2021-12-21 16:05:43,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2021-12-21 16:05:43,702 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:05:43,702 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:05:43,725 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-21 16:05:43,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 16:05:43,925 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:05:43,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:05:43,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1786485560, now seen corresponding path program 1 times [2021-12-21 16:05:43,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:05:43,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129345059] [2021-12-21 16:05:43,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:43,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:05:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 16:05:44,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:44,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-21 16:05:44,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:44,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-21 16:05:44,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:44,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-21 16:05:44,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:44,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-21 16:05:44,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-21 16:05:44,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:44,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-21 16:05:44,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-21 16:05:44,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-21 16:05:44,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-21 16:05:44,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-21 16:05:44,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-21 16:05:44,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-21 16:05:44,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-21 16:05:44,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:44,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:44,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 16:05:44,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-21 16:05:44,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-21 16:05:44,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-21 16:05:44,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-21 16:05:44,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:44,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:05:44,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-21 16:05:44,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:44,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:05:44,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-21 16:05:44,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:44,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:05:44,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-21 16:05:44,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:44,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:44,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-21 16:05:44,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-12-21 16:05:44,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:05:44,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-12-21 16:05:44,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-21 16:05:44,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-12-21 16:05:44,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2021-12-21 16:05:44,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-21 16:05:44,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:44,285 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2021-12-21 16:05:44,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:05:44,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129345059] [2021-12-21 16:05:44,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129345059] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:05:44,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:05:44,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-21 16:05:44,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734429262] [2021-12-21 16:05:44,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:05:44,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-21 16:05:44,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:05:44,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-21 16:05:44,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-21 16:05:44,289 INFO L87 Difference]: Start difference. First operand 12139 states and 16506 transitions. Second operand has 8 states, 8 states have (on average 17.375) internal successors, (139), 3 states have internal predecessors, (139), 3 states have call successors, (43), 8 states have call predecessors, (43), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-12-21 16:05:49,167 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:05:50,849 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:05:52,515 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:05:54,335 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:05:55,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:05:55,066 INFO L93 Difference]: Finished difference Result 16107 states and 23024 transitions. [2021-12-21 16:05:55,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-21 16:05:55,066 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.375) internal successors, (139), 3 states have internal predecessors, (139), 3 states have call successors, (43), 8 states have call predecessors, (43), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 302 [2021-12-21 16:05:55,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:05:55,069 INFO L225 Difference]: With dead ends: 16107 [2021-12-21 16:05:55,069 INFO L226 Difference]: Without dead ends: 0 [2021-12-21 16:05:55,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 91 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2021-12-21 16:05:55,116 INFO L933 BasicCegarLoop]: 1113 mSDtfsCounter, 889 mSDsluCounter, 2206 mSDsCounter, 0 mSdLazyCounter, 2686 mSolverCounterSat, 542 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1027 SdHoareTripleChecker+Valid, 3319 SdHoareTripleChecker+Invalid, 3228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 542 IncrementalHoareTripleChecker+Valid, 2686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2021-12-21 16:05:55,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1027 Valid, 3319 Invalid, 3228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [542 Valid, 2686 Invalid, 0 Unknown, 0 Unchecked, 10.2s Time] [2021-12-21 16:05:55,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-21 16:05:55,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-21 16:05:55,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:05:55,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-21 16:05:55,119 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 302 [2021-12-21 16:05:55,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:05:55,119 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 16:05:55,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.375) internal successors, (139), 3 states have internal predecessors, (139), 3 states have call successors, (43), 8 states have call predecessors, (43), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-12-21 16:05:55,120 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-21 16:05:55,120 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-21 16:05:55,122 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-21 16:05:55,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-21 16:05:55,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.