./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.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 2c6aa6e54aa03d80dc4005d195dc80cde5e772aed59b94df03248a4abb3fc0ec --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 14:05:34,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 14:05:34,953 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 14:05:34,977 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 14:05:34,977 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 14:05:34,987 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 14:05:34,989 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 14:05:34,992 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 14:05:34,993 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 14:05:34,997 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 14:05:34,997 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 14:05:34,998 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 14:05:34,998 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 14:05:35,000 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 14:05:35,001 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 14:05:35,002 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 14:05:35,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 14:05:35,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 14:05:35,003 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 14:05:35,004 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 14:05:35,005 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 14:05:35,006 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 14:05:35,007 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 14:05:35,007 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 14:05:35,009 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 14:05:35,009 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 14:05:35,009 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 14:05:35,009 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 14:05:35,010 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 14:05:35,010 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 14:05:35,011 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 14:05:35,011 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 14:05:35,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 14:05:35,012 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 14:05:35,013 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 14:05:35,013 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 14:05:35,013 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 14:05:35,013 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 14:05:35,014 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 14:05:35,014 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 14:05:35,015 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 14:05:35,020 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 14:05:35,044 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 14:05:35,046 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 14:05:35,047 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 14:05:35,047 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 14:05:35,048 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 14:05:35,048 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 14:05:35,049 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 14:05:35,049 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 14:05:35,049 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 14:05:35,049 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 14:05:35,050 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 14:05:35,050 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 14:05:35,050 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 14:05:35,050 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 14:05:35,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 14:05:35,050 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 14:05:35,051 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 14:05:35,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 14:05:35,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 14:05:35,051 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 14:05:35,051 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 14:05:35,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:05:35,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 14:05:35,052 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 14:05:35,052 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 14:05:35,052 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 14:05:35,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 14:05:35,053 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 14:05:35,053 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 14:05:35,053 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 14:05:35,053 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 14:05:35,053 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c6aa6e54aa03d80dc4005d195dc80cde5e772aed59b94df03248a4abb3fc0ec [2021-12-22 14:05:35,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 14:05:35,269 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 14:05:35,271 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 14:05:35,272 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 14:05:35,272 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 14:05:35,273 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i [2021-12-22 14:05:35,316 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e251802cd/e3901a676fcf441c9cec27f6f6e5f9ad/FLAGffb0f4023 [2021-12-22 14:05:35,948 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 14:05:35,948 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i [2021-12-22 14:05:35,987 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e251802cd/e3901a676fcf441c9cec27f6f6e5f9ad/FLAGffb0f4023 [2021-12-22 14:05:36,345 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e251802cd/e3901a676fcf441c9cec27f6f6e5f9ad [2021-12-22 14:05:36,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 14:05:36,350 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 14:05:36,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 14:05:36,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 14:05:36,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 14:05:36,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:05:36" (1/1) ... [2021-12-22 14:05:36,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aeba8c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:05:36, skipping insertion in model container [2021-12-22 14:05:36,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:05:36" (1/1) ... [2021-12-22 14:05:36,363 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 14:05:36,453 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 14:05:37,713 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i[284671,284684] [2021-12-22 14:05:37,760 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:05:37,793 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 14:05:38,062 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i[284671,284684] [2021-12-22 14:05:38,075 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:05:38,147 INFO L208 MainTranslator]: Completed translation [2021-12-22 14:05:38,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:05:38 WrapperNode [2021-12-22 14:05:38,149 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 14:05:38,150 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 14:05:38,150 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 14:05:38,150 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 14:05:38,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:05:38" (1/1) ... [2021-12-22 14:05:38,225 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:05:38" (1/1) ... [2021-12-22 14:05:38,344 INFO L137 Inliner]: procedures = 177, calls = 1597, calls flagged for inlining = 87, calls inlined = 82, statements flattened = 3739 [2021-12-22 14:05:38,344 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 14:05:38,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 14:05:38,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 14:05:38,346 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 14:05:38,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:05:38" (1/1) ... [2021-12-22 14:05:38,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:05:38" (1/1) ... [2021-12-22 14:05:38,378 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:05:38" (1/1) ... [2021-12-22 14:05:38,379 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:05:38" (1/1) ... [2021-12-22 14:05:38,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:05:38" (1/1) ... [2021-12-22 14:05:38,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:05:38" (1/1) ... [2021-12-22 14:05:38,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:05:38" (1/1) ... [2021-12-22 14:05:38,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 14:05:38,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 14:05:38,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 14:05:38,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 14:05:38,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:05:38" (1/1) ... [2021-12-22 14:05:38,517 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:05:38,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:05:38,536 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) [2021-12-22 14:05:38,559 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 [2021-12-22 14:05:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-22 14:05:38,573 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-22 14:05:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-22 14:05:38,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-22 14:05:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-22 14:05:38,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-22 14:05:38,574 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_free_iso_urbs [2021-12-22 14:05:38,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_free_iso_urbs [2021-12-22 14:05:38,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 14:05:38,574 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-22 14:05:38,574 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-22 14:05:38,574 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2021-12-22 14:05:38,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2021-12-22 14:05:38,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 14:05:38,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 14:05:38,575 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2021-12-22 14:05:38,575 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2021-12-22 14:05:38,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 14:05:38,575 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_dvb [2021-12-22 14:05:38,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_dvb [2021-12-22 14:05:38,575 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2021-12-22 14:05:38,575 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2021-12-22 14:05:38,576 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2021-12-22 14:05:38,576 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2021-12-22 14:05:38,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-22 14:05:38,576 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-22 14:05:38,576 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-22 14:05:38,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-22 14:05:38,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 14:05:38,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 14:05:38,576 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-22 14:05:38,577 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-22 14:05:38,577 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2021-12-22 14:05:38,577 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2021-12-22 14:05:38,577 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 14:05:38,577 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 14:05:38,577 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_iso_xfer [2021-12-22 14:05:38,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_iso_xfer [2021-12-22 14:05:38,577 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-22 14:05:38,577 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-22 14:05:38,578 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_send_command [2021-12-22 14:05:38,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_send_command [2021-12-22 14:05:38,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 14:05:38,578 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-22 14:05:38,578 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-22 14:05:38,578 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_setup_urbs [2021-12-22 14:05:38,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_setup_urbs [2021-12-22 14:05:38,579 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2021-12-22 14:05:38,579 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2021-12-22 14:05:38,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2021-12-22 14:05:38,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2021-12-22 14:05:38,580 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_pids [2021-12-22 14:05:38,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_pids [2021-12-22 14:05:38,580 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit [2021-12-22 14:05:38,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit [2021-12-22 14:05:38,580 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_usb [2021-12-22 14:05:38,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_usb [2021-12-22 14:05:38,581 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_release [2021-12-22 14:05:38,581 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_release [2021-12-22 14:05:38,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 14:05:38,582 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-22 14:05:38,582 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-22 14:05:38,583 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init [2021-12-22 14:05:38,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init [2021-12-22 14:05:38,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 14:05:38,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 14:05:38,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 14:05:38,583 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2021-12-22 14:05:38,583 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2021-12-22 14:05:38,584 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-22 14:05:38,584 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-22 14:05:38,602 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 14:05:38,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 14:05:38,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 14:05:38,602 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-22 14:05:38,602 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-22 14:05:38,602 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-22 14:05:38,603 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-22 14:05:38,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-12-22 14:05:38,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-12-22 14:05:38,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 14:05:38,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 14:05:38,604 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_probe [2021-12-22 14:05:38,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_probe [2021-12-22 14:05:38,604 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-22 14:05:38,604 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-22 14:05:38,604 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_release [2021-12-22 14:05:38,604 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_release [2021-12-22 14:05:38,604 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-22 14:05:38,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-22 14:05:38,605 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-22 14:05:38,605 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-22 14:05:38,605 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-22 14:05:38,606 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-22 14:05:38,606 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-22 14:05:38,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-22 14:05:38,606 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_dvb [2021-12-22 14:05:38,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_dvb [2021-12-22 14:05:38,607 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-22 14:05:38,607 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-22 14:05:38,607 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-22 14:05:38,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-22 14:05:38,608 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_disconnect [2021-12-22 14:05:38,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_disconnect [2021-12-22 14:05:38,608 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-12-22 14:05:38,608 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-12-22 14:05:38,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2021-12-22 14:05:38,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2021-12-22 14:05:38,608 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_model [2021-12-22 14:05:38,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_model [2021-12-22 14:05:38,609 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-12-22 14:05:38,609 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-12-22 14:05:38,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 14:05:38,609 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2021-12-22 14:05:38,609 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2021-12-22 14:05:38,609 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_stop_iso_xfer [2021-12-22 14:05:38,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_stop_iso_xfer [2021-12-22 14:05:38,610 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-12-22 14:05:38,611 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-12-22 14:05:38,613 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_filter_pes2ts_init [2021-12-22 14:05:38,613 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_filter_pes2ts_init [2021-12-22 14:05:38,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 14:05:38,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 14:05:38,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 14:05:39,187 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 14:05:39,189 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 14:05:39,305 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-22 14:05:39,367 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2021-12-22 14:05:39,368 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2021-12-22 14:05:39,514 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-22 14:05:40,099 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##203: assume false; [2021-12-22 14:05:40,099 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##204: assume !false; [2021-12-22 14:05:40,240 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2021-12-22 14:05:40,244 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-22 14:05:40,245 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-22 14:05:42,564 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##78: assume !false; [2021-12-22 14:05:42,565 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##77: assume false; [2021-12-22 14:05:42,565 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##39: assume !false; [2021-12-22 14:05:42,565 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume false; [2021-12-22 14:05:42,565 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L8653: ttusb_dec_start_feed_#res#1 := 0; [2021-12-22 14:05:42,873 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-22 14:05:43,360 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2021-12-22 14:05:43,360 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2021-12-22 14:05:43,382 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 14:05:43,392 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 14:05:43,392 INFO L299 CfgBuilder]: Removed 38 assume(true) statements. [2021-12-22 14:05:43,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:05:43 BoogieIcfgContainer [2021-12-22 14:05:43,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 14:05:43,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 14:05:43,396 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 14:05:43,398 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 14:05:43,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:05:36" (1/3) ... [2021-12-22 14:05:43,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@de4939a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:05:43, skipping insertion in model container [2021-12-22 14:05:43,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:05:38" (2/3) ... [2021-12-22 14:05:43,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@de4939a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:05:43, skipping insertion in model container [2021-12-22 14:05:43,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:05:43" (3/3) ... [2021-12-22 14:05:43,400 INFO L111 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i [2021-12-22 14:05:43,404 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 14:05:43,404 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 14:05:43,438 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 14:05:43,442 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 [2021-12-22 14:05:43,443 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 14:05:43,468 INFO L276 IsEmpty]: Start isEmpty. Operand has 1005 states, 751 states have (on average 1.4141145139813582) internal successors, (1062), 775 states have internal predecessors, (1062), 199 states have call successors, (199), 54 states have call predecessors, (199), 53 states have return successors, (197), 191 states have call predecessors, (197), 197 states have call successors, (197) [2021-12-22 14:05:43,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-22 14:05:43,473 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:05:43,474 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:05:43,474 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:05:43,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:05:43,478 INFO L85 PathProgramCache]: Analyzing trace with hash -2066684568, now seen corresponding path program 1 times [2021-12-22 14:05:43,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:05:43,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407051547] [2021-12-22 14:05:43,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:05:43,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:05:43,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:43,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:05:43,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:43,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:05:43,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:05:43,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407051547] [2021-12-22 14:05:43,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407051547] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:05:43,949 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:05:43,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 14:05:43,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195314947] [2021-12-22 14:05:43,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:05:43,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 14:05:43,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:05:43,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 14:05:43,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 14:05:43,979 INFO L87 Difference]: Start difference. First operand has 1005 states, 751 states have (on average 1.4141145139813582) internal successors, (1062), 775 states have internal predecessors, (1062), 199 states have call successors, (199), 54 states have call predecessors, (199), 53 states have return successors, (197), 191 states have call predecessors, (197), 197 states have call successors, (197) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-22 14:05:44,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:05:44,160 INFO L93 Difference]: Finished difference Result 2975 states and 4442 transitions. [2021-12-22 14:05:44,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 14:05:44,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2021-12-22 14:05:44,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:05:44,183 INFO L225 Difference]: With dead ends: 2975 [2021-12-22 14:05:44,184 INFO L226 Difference]: Without dead ends: 1968 [2021-12-22 14:05:44,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 14:05:44,196 INFO L933 BasicCegarLoop]: 1959 mSDtfsCounter, 1356 mSDsluCounter, 1356 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1356 SdHoareTripleChecker+Valid, 3315 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 14:05:44,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1356 Valid, 3315 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 14:05:44,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1968 states. [2021-12-22 14:05:44,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1968 to 1964. [2021-12-22 14:05:44,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1964 states, 1471 states have (on average 1.301835486063902) internal successors, (1915), 1499 states have internal predecessors, (1915), 389 states have call successors, (389), 104 states have call predecessors, (389), 103 states have return successors, (399), 373 states have call predecessors, (399), 385 states have call successors, (399) [2021-12-22 14:05:44,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1964 states to 1964 states and 2703 transitions. [2021-12-22 14:05:44,317 INFO L78 Accepts]: Start accepts. Automaton has 1964 states and 2703 transitions. Word has length 16 [2021-12-22 14:05:44,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:05:44,317 INFO L470 AbstractCegarLoop]: Abstraction has 1964 states and 2703 transitions. [2021-12-22 14:05:44,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-22 14:05:44,318 INFO L276 IsEmpty]: Start isEmpty. Operand 1964 states and 2703 transitions. [2021-12-22 14:05:44,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-22 14:05:44,318 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:05:44,318 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:05:44,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 14:05:44,319 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:05:44,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:05:44,320 INFO L85 PathProgramCache]: Analyzing trace with hash 356908155, now seen corresponding path program 1 times [2021-12-22 14:05:44,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:05:44,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174786401] [2021-12-22 14:05:44,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:05:44,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:05:44,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:44,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:05:44,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:44,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:05:44,627 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:05:44,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174786401] [2021-12-22 14:05:44,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174786401] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:05:44,628 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:05:44,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 14:05:44,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542349091] [2021-12-22 14:05:44,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:05:44,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 14:05:44,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:05:44,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 14:05:44,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 14:05:44,631 INFO L87 Difference]: Start difference. First operand 1964 states and 2703 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-22 14:05:44,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:05:44,903 INFO L93 Difference]: Finished difference Result 5865 states and 8150 transitions. [2021-12-22 14:05:44,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 14:05:44,904 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-12-22 14:05:44,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:05:44,924 INFO L225 Difference]: With dead ends: 5865 [2021-12-22 14:05:44,939 INFO L226 Difference]: Without dead ends: 3905 [2021-12-22 14:05:44,950 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 14:05:44,951 INFO L933 BasicCegarLoop]: 1797 mSDtfsCounter, 1343 mSDsluCounter, 1349 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1343 SdHoareTripleChecker+Valid, 3146 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 14:05:44,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1343 Valid, 3146 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 14:05:44,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3905 states. [2021-12-22 14:05:45,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3905 to 3898. [2021-12-22 14:05:45,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3898 states, 2921 states have (on average 1.3012666894899008) internal successors, (3801), 2972 states have internal predecessors, (3801), 772 states have call successors, (772), 205 states have call predecessors, (772), 204 states have return successors, (832), 744 states have call predecessors, (832), 768 states have call successors, (832) [2021-12-22 14:05:45,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3898 states to 3898 states and 5405 transitions. [2021-12-22 14:05:45,176 INFO L78 Accepts]: Start accepts. Automaton has 3898 states and 5405 transitions. Word has length 17 [2021-12-22 14:05:45,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:05:45,177 INFO L470 AbstractCegarLoop]: Abstraction has 3898 states and 5405 transitions. [2021-12-22 14:05:45,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-22 14:05:45,177 INFO L276 IsEmpty]: Start isEmpty. Operand 3898 states and 5405 transitions. [2021-12-22 14:05:45,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-12-22 14:05:45,179 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:05:45,179 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:05:45,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 14:05:45,180 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:05:45,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:05:45,180 INFO L85 PathProgramCache]: Analyzing trace with hash -731681733, now seen corresponding path program 1 times [2021-12-22 14:05:45,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:05:45,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782490856] [2021-12-22 14:05:45,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:05:45,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:05:45,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:45,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:05:45,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:45,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-22 14:05:45,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:45,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-22 14:05:45,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:45,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:05:45,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:05:45,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782490856] [2021-12-22 14:05:45,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782490856] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:05:45,389 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:05:45,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 14:05:45,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531033481] [2021-12-22 14:05:45,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:05:45,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 14:05:45,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:05:45,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 14:05:45,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-22 14:05:45,391 INFO L87 Difference]: Start difference. First operand 3898 states and 5405 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-22 14:05:47,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:05:50,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:05:50,751 INFO L93 Difference]: Finished difference Result 8674 states and 12266 transitions. [2021-12-22 14:05:50,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 14:05:50,752 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 60 [2021-12-22 14:05:50,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:05:50,778 INFO L225 Difference]: With dead ends: 8674 [2021-12-22 14:05:50,778 INFO L226 Difference]: Without dead ends: 4784 [2021-12-22 14:05:50,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-22 14:05:50,798 INFO L933 BasicCegarLoop]: 1444 mSDtfsCounter, 527 mSDsluCounter, 4343 mSDsCounter, 0 mSdLazyCounter, 1171 mSolverCounterSat, 245 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 5787 SdHoareTripleChecker+Invalid, 1417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 245 IncrementalHoareTripleChecker+Valid, 1171 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2021-12-22 14:05:50,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [588 Valid, 5787 Invalid, 1417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [245 Valid, 1171 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2021-12-22 14:05:50,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4784 states. [2021-12-22 14:05:50,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4784 to 4003. [2021-12-22 14:05:50,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4003 states, 2996 states have (on average 1.2973965287049398) internal successors, (3887), 3053 states have internal predecessors, (3887), 793 states have call successors, (793), 205 states have call predecessors, (793), 213 states have return successors, (892), 768 states have call predecessors, (892), 789 states have call successors, (892) [2021-12-22 14:05:50,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4003 states to 4003 states and 5572 transitions. [2021-12-22 14:05:50,932 INFO L78 Accepts]: Start accepts. Automaton has 4003 states and 5572 transitions. Word has length 60 [2021-12-22 14:05:50,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:05:50,933 INFO L470 AbstractCegarLoop]: Abstraction has 4003 states and 5572 transitions. [2021-12-22 14:05:50,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-22 14:05:50,933 INFO L276 IsEmpty]: Start isEmpty. Operand 4003 states and 5572 transitions. [2021-12-22 14:05:50,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-12-22 14:05:50,940 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:05:50,940 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:05:50,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 14:05:50,940 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:05:50,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:05:50,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1637752252, now seen corresponding path program 1 times [2021-12-22 14:05:50,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:05:50,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418821211] [2021-12-22 14:05:50,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:05:50,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:05:51,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:51,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:05:51,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:51,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-22 14:05:51,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:51,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-22 14:05:51,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:51,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:05:51,181 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:05:51,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418821211] [2021-12-22 14:05:51,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418821211] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:05:51,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:05:51,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 14:05:51,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832793177] [2021-12-22 14:05:51,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:05:51,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 14:05:51,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:05:51,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 14:05:51,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-22 14:05:51,183 INFO L87 Difference]: Start difference. First operand 4003 states and 5572 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-22 14:05:53,624 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:05:56,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:05:56,229 INFO L93 Difference]: Finished difference Result 8899 states and 12617 transitions. [2021-12-22 14:05:56,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 14:05:56,230 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 60 [2021-12-22 14:05:56,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:05:56,252 INFO L225 Difference]: With dead ends: 8899 [2021-12-22 14:05:56,252 INFO L226 Difference]: Without dead ends: 4906 [2021-12-22 14:05:56,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-22 14:05:56,268 INFO L933 BasicCegarLoop]: 1468 mSDtfsCounter, 572 mSDsluCounter, 4371 mSDsCounter, 0 mSdLazyCounter, 1226 mSolverCounterSat, 252 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 5839 SdHoareTripleChecker+Invalid, 1479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 1226 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2021-12-22 14:05:56,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [636 Valid, 5839 Invalid, 1479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 1226 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2021-12-22 14:05:56,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4906 states. [2021-12-22 14:05:56,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4906 to 4074. [2021-12-22 14:05:56,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4074 states, 3067 states have (on average 1.3002934463645255) internal successors, (3988), 3124 states have internal predecessors, (3988), 793 states have call successors, (793), 205 states have call predecessors, (793), 213 states have return successors, (892), 768 states have call predecessors, (892), 789 states have call successors, (892) [2021-12-22 14:05:56,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4074 states to 4074 states and 5673 transitions. [2021-12-22 14:05:56,392 INFO L78 Accepts]: Start accepts. Automaton has 4074 states and 5673 transitions. Word has length 60 [2021-12-22 14:05:56,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:05:56,393 INFO L470 AbstractCegarLoop]: Abstraction has 4074 states and 5673 transitions. [2021-12-22 14:05:56,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-22 14:05:56,393 INFO L276 IsEmpty]: Start isEmpty. Operand 4074 states and 5673 transitions. [2021-12-22 14:05:56,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-22 14:05:56,394 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:05:56,395 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-22 14:05:56,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 14:05:56,395 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:05:56,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:05:56,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1528548379, now seen corresponding path program 1 times [2021-12-22 14:05:56,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:05:56,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155774717] [2021-12-22 14:05:56,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:05:56,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:05:56,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:56,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:05:56,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:56,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:05:56,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:56,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 14:05:56,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:56,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:56,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:56,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:05:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:56,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-22 14:05:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:56,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-22 14:05:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:05:56,732 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-22 14:05:56,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:05:56,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155774717] [2021-12-22 14:05:56,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155774717] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:05:56,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:05:56,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 14:05:56,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263715371] [2021-12-22 14:05:56,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:05:56,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 14:05:56,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:05:56,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 14:05:56,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-22 14:05:56,736 INFO L87 Difference]: Start difference. First operand 4074 states and 5673 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 4 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2021-12-22 14:05:59,632 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:06:08,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:06:08,664 INFO L93 Difference]: Finished difference Result 14289 states and 21609 transitions. [2021-12-22 14:06:08,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-22 14:06:08,668 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 4 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 94 [2021-12-22 14:06:08,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:06:08,764 INFO L225 Difference]: With dead ends: 14289 [2021-12-22 14:06:08,764 INFO L226 Difference]: Without dead ends: 10227 [2021-12-22 14:06:08,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2021-12-22 14:06:08,797 INFO L933 BasicCegarLoop]: 2136 mSDtfsCounter, 2702 mSDsluCounter, 4754 mSDsCounter, 0 mSdLazyCounter, 4640 mSolverCounterSat, 1120 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2913 SdHoareTripleChecker+Valid, 6890 SdHoareTripleChecker+Invalid, 5761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1120 IncrementalHoareTripleChecker+Valid, 4640 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2021-12-22 14:06:08,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2913 Valid, 6890 Invalid, 5761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1120 Valid, 4640 Invalid, 1 Unknown, 0 Unchecked, 11.3s Time] [2021-12-22 14:06:08,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10227 states. [2021-12-22 14:06:09,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10227 to 8321. [2021-12-22 14:06:09,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8321 states, 6238 states have (on average 1.2994549535107407) internal successors, (8106), 6435 states have internal predecessors, (8106), 1580 states have call successors, (1580), 393 states have call predecessors, (1580), 502 states have return successors, (2508), 1552 states have call predecessors, (2508), 1576 states have call successors, (2508) [2021-12-22 14:06:09,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8321 states to 8321 states and 12194 transitions. [2021-12-22 14:06:09,250 INFO L78 Accepts]: Start accepts. Automaton has 8321 states and 12194 transitions. Word has length 94 [2021-12-22 14:06:09,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:06:09,251 INFO L470 AbstractCegarLoop]: Abstraction has 8321 states and 12194 transitions. [2021-12-22 14:06:09,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 4 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2021-12-22 14:06:09,252 INFO L276 IsEmpty]: Start isEmpty. Operand 8321 states and 12194 transitions. [2021-12-22 14:06:09,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-22 14:06:09,253 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:06:09,253 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-22 14:06:09,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-22 14:06:09,253 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:06:09,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:06:09,254 INFO L85 PathProgramCache]: Analyzing trace with hash -641325533, now seen corresponding path program 1 times [2021-12-22 14:06:09,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:06:09,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90205118] [2021-12-22 14:06:09,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:09,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:06:09,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:09,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:06:09,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:09,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:06:09,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:09,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 14:06:09,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:09,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:09,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:09,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:09,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:09,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-22 14:06:09,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:09,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-22 14:06:09,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:09,540 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-22 14:06:09,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:06:09,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90205118] [2021-12-22 14:06:09,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90205118] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:06:09,541 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:06:09,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 14:06:09,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889267323] [2021-12-22 14:06:09,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:06:09,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 14:06:09,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:06:09,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 14:06:09,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-22 14:06:09,543 INFO L87 Difference]: Start difference. First operand 8321 states and 12194 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 4 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-12-22 14:06:12,254 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:06:18,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:06:18,758 INFO L93 Difference]: Finished difference Result 19154 states and 28979 transitions. [2021-12-22 14:06:18,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-22 14:06:18,759 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 4 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 94 [2021-12-22 14:06:18,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:06:18,807 INFO L225 Difference]: With dead ends: 19154 [2021-12-22 14:06:18,808 INFO L226 Difference]: Without dead ends: 10845 [2021-12-22 14:06:18,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-12-22 14:06:18,840 INFO L933 BasicCegarLoop]: 1348 mSDtfsCounter, 1370 mSDsluCounter, 3627 mSDsCounter, 0 mSdLazyCounter, 3011 mSolverCounterSat, 571 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1456 SdHoareTripleChecker+Valid, 4975 SdHoareTripleChecker+Invalid, 3583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 571 IncrementalHoareTripleChecker+Valid, 3011 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2021-12-22 14:06:18,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1456 Valid, 4975 Invalid, 3583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [571 Valid, 3011 Invalid, 1 Unknown, 0 Unchecked, 8.6s Time] [2021-12-22 14:06:18,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10845 states. [2021-12-22 14:06:19,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10845 to 8709. [2021-12-22 14:06:19,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8709 states, 6519 states have (on average 1.2986654394845836) internal successors, (8466), 6726 states have internal predecessors, (8466), 1649 states have call successors, (1649), 419 states have call predecessors, (1649), 540 states have return successors, (2695), 1623 states have call predecessors, (2695), 1645 states have call successors, (2695) [2021-12-22 14:06:19,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8709 states to 8709 states and 12810 transitions. [2021-12-22 14:06:19,200 INFO L78 Accepts]: Start accepts. Automaton has 8709 states and 12810 transitions. Word has length 94 [2021-12-22 14:06:19,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:06:19,201 INFO L470 AbstractCegarLoop]: Abstraction has 8709 states and 12810 transitions. [2021-12-22 14:06:19,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 4 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-12-22 14:06:19,202 INFO L276 IsEmpty]: Start isEmpty. Operand 8709 states and 12810 transitions. [2021-12-22 14:06:19,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-22 14:06:19,202 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:06:19,203 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-22 14:06:19,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-22 14:06:19,203 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:06:19,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:06:19,203 INFO L85 PathProgramCache]: Analyzing trace with hash -373913107, now seen corresponding path program 1 times [2021-12-22 14:06:19,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:06:19,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154609402] [2021-12-22 14:06:19,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:19,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:06:19,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:19,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:06:19,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:19,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:06:19,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:19,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 14:06:19,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:19,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:19,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:19,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:19,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:19,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-22 14:06:19,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:19,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-22 14:06:19,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:19,540 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-22 14:06:19,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:06:19,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154609402] [2021-12-22 14:06:19,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154609402] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:06:19,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:06:19,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 14:06:19,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063224878] [2021-12-22 14:06:19,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:06:19,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 14:06:19,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:06:19,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 14:06:19,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:06:19,545 INFO L87 Difference]: Start difference. First operand 8709 states and 12810 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2021-12-22 14:06:21,934 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:06:24,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:06:24,757 INFO L93 Difference]: Finished difference Result 19453 states and 30214 transitions. [2021-12-22 14:06:24,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 14:06:24,757 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 103 [2021-12-22 14:06:24,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:06:24,799 INFO L225 Difference]: With dead ends: 19453 [2021-12-22 14:06:24,799 INFO L226 Difference]: Without dead ends: 10756 [2021-12-22 14:06:24,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-22 14:06:24,833 INFO L933 BasicCegarLoop]: 1330 mSDtfsCounter, 956 mSDsluCounter, 1875 mSDsCounter, 0 mSdLazyCounter, 993 mSolverCounterSat, 564 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1023 SdHoareTripleChecker+Valid, 3205 SdHoareTripleChecker+Invalid, 1558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 564 IncrementalHoareTripleChecker+Valid, 993 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-12-22 14:06:24,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1023 Valid, 3205 Invalid, 1558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [564 Valid, 993 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2021-12-22 14:06:24,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10756 states. [2021-12-22 14:06:25,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10756 to 8735. [2021-12-22 14:06:25,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8735 states, 6545 states have (on average 1.2974789915966387) internal successors, (8492), 6752 states have internal predecessors, (8492), 1649 states have call successors, (1649), 419 states have call predecessors, (1649), 540 states have return successors, (2695), 1623 states have call predecessors, (2695), 1645 states have call successors, (2695) [2021-12-22 14:06:25,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8735 states to 8735 states and 12836 transitions. [2021-12-22 14:06:25,235 INFO L78 Accepts]: Start accepts. Automaton has 8735 states and 12836 transitions. Word has length 103 [2021-12-22 14:06:25,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:06:25,235 INFO L470 AbstractCegarLoop]: Abstraction has 8735 states and 12836 transitions. [2021-12-22 14:06:25,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2021-12-22 14:06:25,236 INFO L276 IsEmpty]: Start isEmpty. Operand 8735 states and 12836 transitions. [2021-12-22 14:06:25,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-22 14:06:25,237 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:06:25,237 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-22 14:06:25,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-22 14:06:25,238 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:06:25,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:06:25,238 INFO L85 PathProgramCache]: Analyzing trace with hash -886194425, now seen corresponding path program 1 times [2021-12-22 14:06:25,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:06:25,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319113264] [2021-12-22 14:06:25,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:25,239 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:06:25,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:25,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:06:25,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:25,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:06:25,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:25,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 14:06:25,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:25,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:25,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:25,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:25,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-22 14:06:25,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:25,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-22 14:06:25,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:25,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-22 14:06:25,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:25,482 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-22 14:06:25,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:06:25,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319113264] [2021-12-22 14:06:25,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319113264] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:06:25,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887977429] [2021-12-22 14:06:25,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:25,483 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:06:25,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:06:25,484 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) [2021-12-22 14:06:25,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-22 14:06:26,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:26,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 2780 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-22 14:06:26,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:06:26,409 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-22 14:06:26,410 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 14:06:26,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887977429] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:06:26,410 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 14:06:26,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2021-12-22 14:06:26,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957572423] [2021-12-22 14:06:26,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:06:26,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 14:06:26,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:06:26,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 14:06:26,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-22 14:06:26,412 INFO L87 Difference]: Start difference. First operand 8735 states and 12836 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-22 14:06:26,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:06:26,914 INFO L93 Difference]: Finished difference Result 17160 states and 25185 transitions. [2021-12-22 14:06:26,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 14:06:26,915 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 111 [2021-12-22 14:06:26,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:06:26,955 INFO L225 Difference]: With dead ends: 17160 [2021-12-22 14:06:26,955 INFO L226 Difference]: Without dead ends: 8426 [2021-12-22 14:06:26,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-22 14:06:26,997 INFO L933 BasicCegarLoop]: 1365 mSDtfsCounter, 13 mSDsluCounter, 4075 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 5440 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 14:06:26,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 5440 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 14:06:27,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8426 states. [2021-12-22 14:06:27,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8426 to 8378. [2021-12-22 14:06:27,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8378 states, 6254 states have (on average 1.293891909178126) internal successors, (8092), 6454 states have internal predecessors, (8092), 1605 states have call successors, (1605), 398 states have call predecessors, (1605), 518 states have return successors, (2578), 1581 states have call predecessors, (2578), 1601 states have call successors, (2578) [2021-12-22 14:06:27,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8378 states to 8378 states and 12275 transitions. [2021-12-22 14:06:27,342 INFO L78 Accepts]: Start accepts. Automaton has 8378 states and 12275 transitions. Word has length 111 [2021-12-22 14:06:27,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:06:27,342 INFO L470 AbstractCegarLoop]: Abstraction has 8378 states and 12275 transitions. [2021-12-22 14:06:27,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-22 14:06:27,343 INFO L276 IsEmpty]: Start isEmpty. Operand 8378 states and 12275 transitions. [2021-12-22 14:06:27,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-12-22 14:06:27,344 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:06:27,344 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 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] [2021-12-22 14:06:27,367 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-22 14:06:27,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:06:27,567 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:06:27,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:06:27,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1878716726, now seen corresponding path program 1 times [2021-12-22 14:06:27,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:06:27,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913467606] [2021-12-22 14:06:27,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:27,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:06:27,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:27,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:06:27,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:27,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:06:27,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:27,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 14:06:27,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:27,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:27,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:28,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-22 14:06:28,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-22 14:06:28,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 14:06:28,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-22 14:06:28,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:06:28,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-22 14:06:28,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-22 14:06:28,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-22 14:06:28,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-22 14:06:28,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:06:28,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-22 14:06:28,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-22 14:06:28,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,225 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-12-22 14:06:28,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:06:28,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913467606] [2021-12-22 14:06:28,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913467606] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:06:28,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040000087] [2021-12-22 14:06:28,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:28,226 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:06:28,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:06:28,240 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) [2021-12-22 14:06:28,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-22 14:06:29,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:29,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 2915 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-22 14:06:29,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:06:29,236 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-12-22 14:06:29,236 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 14:06:29,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1040000087] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:06:29,236 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 14:06:29,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 16 [2021-12-22 14:06:29,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466369694] [2021-12-22 14:06:29,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:06:29,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 14:06:29,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:06:29,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 14:06:29,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2021-12-22 14:06:29,238 INFO L87 Difference]: Start difference. First operand 8378 states and 12275 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-22 14:06:29,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:06:29,542 INFO L93 Difference]: Finished difference Result 8430 states and 12327 transitions. [2021-12-22 14:06:29,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 14:06:29,543 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 124 [2021-12-22 14:06:29,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:06:29,569 INFO L225 Difference]: With dead ends: 8430 [2021-12-22 14:06:29,569 INFO L226 Difference]: Without dead ends: 8404 [2021-12-22 14:06:29,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-12-22 14:06:29,574 INFO L933 BasicCegarLoop]: 1354 mSDtfsCounter, 1351 mSDsluCounter, 2716 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1352 SdHoareTripleChecker+Valid, 4070 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 14:06:29,574 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1352 Valid, 4070 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 14:06:29,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8404 states. [2021-12-22 14:06:29,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8404 to 8378. [2021-12-22 14:06:29,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8378 states, 6254 states have (on average 1.2934122161816437) internal successors, (8089), 6454 states have internal predecessors, (8089), 1605 states have call successors, (1605), 398 states have call predecessors, (1605), 518 states have return successors, (2578), 1581 states have call predecessors, (2578), 1601 states have call successors, (2578) [2021-12-22 14:06:29,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8378 states to 8378 states and 12272 transitions. [2021-12-22 14:06:29,865 INFO L78 Accepts]: Start accepts. Automaton has 8378 states and 12272 transitions. Word has length 124 [2021-12-22 14:06:29,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:06:29,866 INFO L470 AbstractCegarLoop]: Abstraction has 8378 states and 12272 transitions. [2021-12-22 14:06:29,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-22 14:06:29,866 INFO L276 IsEmpty]: Start isEmpty. Operand 8378 states and 12272 transitions. [2021-12-22 14:06:29,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-22 14:06:29,869 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:06:29,870 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:06:29,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-22 14:06:30,092 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,SelfDestructingSolverStorable8 [2021-12-22 14:06:30,092 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:06:30,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:06:30,093 INFO L85 PathProgramCache]: Analyzing trace with hash 220225050, now seen corresponding path program 1 times [2021-12-22 14:06:30,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:06:30,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59715305] [2021-12-22 14:06:30,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:30,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:06:30,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:30,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:06:30,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:30,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 14:06:30,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:30,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:30,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:30,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:30,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:30,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 14:06:30,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:30,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-22 14:06:30,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:30,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-22 14:06:30,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:30,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 14:06:30,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:30,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 14:06:30,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:30,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 14:06:30,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:30,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-22 14:06:30,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:30,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-22 14:06:30,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:30,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-22 14:06:30,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:30,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:06:30,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:30,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-22 14:06:30,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:30,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-22 14:06:30,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:30,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-22 14:06:30,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:30,680 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-12-22 14:06:30,680 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:06:30,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59715305] [2021-12-22 14:06:30,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59715305] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:06:30,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651089436] [2021-12-22 14:06:30,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:30,681 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:06:30,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:06:30,682 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) [2021-12-22 14:06:30,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-22 14:06:31,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:31,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 2992 conjuncts, 21 conjunts are in the unsatisfiable core [2021-12-22 14:06:31,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:06:31,749 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-12-22 14:06:31,750 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 14:06:31,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651089436] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:06:31,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 14:06:31,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2021-12-22 14:06:31,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821533824] [2021-12-22 14:06:31,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:06:31,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 14:06:31,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:06:31,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 14:06:31,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2021-12-22 14:06:31,752 INFO L87 Difference]: Start difference. First operand 8378 states and 12272 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-22 14:06:32,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:06:32,030 INFO L93 Difference]: Finished difference Result 14584 states and 21712 transitions. [2021-12-22 14:06:32,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 14:06:32,031 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 130 [2021-12-22 14:06:32,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:06:32,058 INFO L225 Difference]: With dead ends: 14584 [2021-12-22 14:06:32,058 INFO L226 Difference]: Without dead ends: 6254 [2021-12-22 14:06:32,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2021-12-22 14:06:32,093 INFO L933 BasicCegarLoop]: 1352 mSDtfsCounter, 0 mSDsluCounter, 4051 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5403 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 14:06:32,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 5403 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 14:06:32,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6254 states. [2021-12-22 14:06:32,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6254 to 6240. [2021-12-22 14:06:32,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6240 states, 4658 states have (on average 1.2919708029197081) internal successors, (6018), 4806 states have internal predecessors, (6018), 1195 states have call successors, (1195), 300 states have call predecessors, (1195), 386 states have return successors, (1863), 1175 states have call predecessors, (1863), 1191 states have call successors, (1863) [2021-12-22 14:06:32,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6240 states to 6240 states and 9076 transitions. [2021-12-22 14:06:32,492 INFO L78 Accepts]: Start accepts. Automaton has 6240 states and 9076 transitions. Word has length 130 [2021-12-22 14:06:32,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:06:32,492 INFO L470 AbstractCegarLoop]: Abstraction has 6240 states and 9076 transitions. [2021-12-22 14:06:32,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-22 14:06:32,493 INFO L276 IsEmpty]: Start isEmpty. Operand 6240 states and 9076 transitions. [2021-12-22 14:06:32,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-12-22 14:06:32,495 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:06:32,495 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:06:32,518 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-22 14:06:32,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:06:32,713 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:06:32,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:06:32,713 INFO L85 PathProgramCache]: Analyzing trace with hash 713006253, now seen corresponding path program 1 times [2021-12-22 14:06:32,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:06:32,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766306639] [2021-12-22 14:06:32,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:32,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:06:32,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:06:32,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:06:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 14:06:32,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:32,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:33,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:33,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:33,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-22 14:06:33,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:33,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-22 14:06:33,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:33,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-22 14:06:33,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:33,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-22 14:06:33,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:33,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:06:33,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:33,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-22 14:06:33,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:33,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-22 14:06:33,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:33,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-22 14:06:33,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:33,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-22 14:06:33,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:33,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:06:33,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:33,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-22 14:06:33,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:33,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-22 14:06:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:33,214 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-12-22 14:06:33,214 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:06:33,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766306639] [2021-12-22 14:06:33,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766306639] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:06:33,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400626644] [2021-12-22 14:06:33,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:33,215 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:06:33,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:06:33,240 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 14:06:33,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-22 14:06:34,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:34,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 2927 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-22 14:06:34,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:06:34,311 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-12-22 14:06:34,311 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 14:06:34,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400626644] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:06:34,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 14:06:34,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 15 [2021-12-22 14:06:34,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954214844] [2021-12-22 14:06:34,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:06:34,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 14:06:34,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:06:34,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 14:06:34,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2021-12-22 14:06:34,314 INFO L87 Difference]: Start difference. First operand 6240 states and 9076 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-22 14:06:34,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:06:34,611 INFO L93 Difference]: Finished difference Result 12432 states and 18098 transitions. [2021-12-22 14:06:34,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 14:06:34,612 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 128 [2021-12-22 14:06:34,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:06:34,665 INFO L225 Difference]: With dead ends: 12432 [2021-12-22 14:06:34,665 INFO L226 Difference]: Without dead ends: 6213 [2021-12-22 14:06:34,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2021-12-22 14:06:34,686 INFO L933 BasicCegarLoop]: 1355 mSDtfsCounter, 25 mSDsluCounter, 1341 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 2696 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 14:06:34,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 2696 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 14:06:34,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6213 states. [2021-12-22 14:06:34,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6213 to 6213. [2021-12-22 14:06:34,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6213 states, 4631 states have (on average 1.288922478946232) internal successors, (5969), 4779 states have internal predecessors, (5969), 1195 states have call successors, (1195), 300 states have call predecessors, (1195), 386 states have return successors, (1863), 1175 states have call predecessors, (1863), 1191 states have call successors, (1863) [2021-12-22 14:06:34,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6213 states to 6213 states and 9027 transitions. [2021-12-22 14:06:34,894 INFO L78 Accepts]: Start accepts. Automaton has 6213 states and 9027 transitions. Word has length 128 [2021-12-22 14:06:34,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:06:34,894 INFO L470 AbstractCegarLoop]: Abstraction has 6213 states and 9027 transitions. [2021-12-22 14:06:34,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-22 14:06:34,895 INFO L276 IsEmpty]: Start isEmpty. Operand 6213 states and 9027 transitions. [2021-12-22 14:06:34,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-22 14:06:34,896 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:06:34,896 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:06:34,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-22 14:06:35,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:06:35,120 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:06:35,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:06:35,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1181839067, now seen corresponding path program 1 times [2021-12-22 14:06:35,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:06:35,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155663161] [2021-12-22 14:06:35,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:35,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:06:35,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:06:35,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 14:06:35,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:35,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:35,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 14:06:35,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-22 14:06:35,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-22 14:06:35,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 14:06:35,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 14:06:35,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 14:06:35,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-22 14:06:35,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-22 14:06:35,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-22 14:06:35,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:06:35,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-22 14:06:35,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-22 14:06:35,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-22 14:06:35,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,527 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-12-22 14:06:35,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:06:35,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155663161] [2021-12-22 14:06:35,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155663161] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:06:35,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075918575] [2021-12-22 14:06:35,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:35,528 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:06:35,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:06:35,544 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 14:06:35,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-22 14:06:36,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:36,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 2991 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-22 14:06:36,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:06:36,774 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-22 14:06:36,774 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 14:06:37,102 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-12-22 14:06:37,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075918575] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-22 14:06:37,103 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-12-22 14:06:37,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12, 6] total 18 [2021-12-22 14:06:37,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69224781] [2021-12-22 14:06:37,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:06:37,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 14:06:37,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:06:37,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 14:06:37,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-12-22 14:06:37,104 INFO L87 Difference]: Start difference. First operand 6213 states and 9027 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 5 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16)