./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 35987657 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-?-3598765 [2022-07-21 09:55:52,183 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 09:55:52,185 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 09:55:52,229 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 09:55:52,229 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 09:55:52,231 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 09:55:52,236 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 09:55:52,239 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 09:55:52,240 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 09:55:52,245 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 09:55:52,246 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 09:55:52,249 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 09:55:52,249 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 09:55:52,251 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 09:55:52,252 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 09:55:52,253 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 09:55:52,253 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 09:55:52,254 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 09:55:52,255 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 09:55:52,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 09:55:52,257 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 09:55:52,260 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 09:55:52,262 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 09:55:52,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 09:55:52,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 09:55:52,267 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 09:55:52,270 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 09:55:52,271 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 09:55:52,271 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 09:55:52,272 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 09:55:52,273 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 09:55:52,273 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 09:55:52,274 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 09:55:52,275 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 09:55:52,275 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 09:55:52,277 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 09:55:52,277 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 09:55:52,278 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 09:55:52,278 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 09:55:52,278 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 09:55:52,279 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 09:55:52,280 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 09:55:52,281 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 09:55:52,323 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 09:55:52,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 09:55:52,324 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 09:55:52,324 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 09:55:52,325 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 09:55:52,325 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 09:55:52,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 09:55:52,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 09:55:52,326 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 09:55:52,327 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 09:55:52,328 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 09:55:52,328 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 09:55:52,328 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 09:55:52,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 09:55:52,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 09:55:52,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 09:55:52,329 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 09:55:52,329 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 09:55:52,329 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 09:55:52,329 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 09:55:52,330 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 09:55:52,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 09:55:52,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 09:55:52,330 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 09:55:52,330 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 09:55:52,331 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 09:55:52,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 09:55:52,331 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 09:55:52,331 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 09:55:52,331 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 09:55:52,332 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c6aa6e54aa03d80dc4005d195dc80cde5e772aed59b94df03248a4abb3fc0ec [2022-07-21 09:55:52,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 09:55:52,595 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 09:55:52,597 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 09:55:52,598 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 09:55:52,599 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 09:55:52,600 INFO L432 ainManager$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 [2022-07-21 09:55:52,652 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cce159a3/f309d7e13a1547339c72b1dc17281ddb/FLAGc07fb5ce9 [2022-07-21 09:55:53,337 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 09:55:53,338 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 [2022-07-21 09:55:53,374 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cce159a3/f309d7e13a1547339c72b1dc17281ddb/FLAGc07fb5ce9 [2022-07-21 09:55:53,423 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cce159a3/f309d7e13a1547339c72b1dc17281ddb [2022-07-21 09:55:53,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 09:55:53,425 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 09:55:53,427 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 09:55:53,427 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 09:55:53,430 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 09:55:53,430 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:55:53" (1/1) ... [2022-07-21 09:55:53,431 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ef641d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:55:53, skipping insertion in model container [2022-07-21 09:55:53,431 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:55:53" (1/1) ... [2022-07-21 09:55:53,437 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 09:55:53,544 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 09:55:54,953 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] [2022-07-21 09:55:54,996 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 09:55:55,033 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 09:55:55,352 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] [2022-07-21 09:55:55,365 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 09:55:55,421 INFO L208 MainTranslator]: Completed translation [2022-07-21 09:55:55,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:55:55 WrapperNode [2022-07-21 09:55:55,423 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 09:55:55,424 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 09:55:55,425 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 09:55:55,425 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 09:55:55,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:55:55" (1/1) ... [2022-07-21 09:55:55,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:55:55" (1/1) ... [2022-07-21 09:55:55,631 INFO L137 Inliner]: procedures = 177, calls = 1597, calls flagged for inlining = 87, calls inlined = 82, statements flattened = 3772 [2022-07-21 09:55:55,632 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 09:55:55,633 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 09:55:55,633 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 09:55:55,634 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 09:55:55,641 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:55:55" (1/1) ... [2022-07-21 09:55:55,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:55:55" (1/1) ... [2022-07-21 09:55:55,671 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:55:55" (1/1) ... [2022-07-21 09:55:55,672 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:55:55" (1/1) ... [2022-07-21 09:55:55,788 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:55:55" (1/1) ... [2022-07-21 09:55:55,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:55:55" (1/1) ... [2022-07-21 09:55:55,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:55:55" (1/1) ... [2022-07-21 09:55:55,864 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 09:55:55,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 09:55:55,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 09:55:55,867 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 09:55:55,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:55:55" (1/1) ... [2022-07-21 09:55:55,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 09:55:55,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:55:55,901 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 09:55:55,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 09:55:55,945 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-21 09:55:55,946 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-21 09:55:55,946 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-21 09:55:55,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-21 09:55:55,946 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-21 09:55:55,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-21 09:55:55,946 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_free_iso_urbs [2022-07-21 09:55:55,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_free_iso_urbs [2022-07-21 09:55:55,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-21 09:55:55,947 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-07-21 09:55:55,947 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-07-21 09:55:55,947 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2022-07-21 09:55:55,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2022-07-21 09:55:55,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 09:55:55,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 09:55:55,948 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-07-21 09:55:55,988 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-07-21 09:55:55,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 09:55:55,989 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_dvb [2022-07-21 09:55:55,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_dvb [2022-07-21 09:55:55,989 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2022-07-21 09:55:55,989 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2022-07-21 09:55:55,989 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2022-07-21 09:55:55,990 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2022-07-21 09:55:55,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 09:55:55,990 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 09:55:55,990 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-21 09:55:55,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-21 09:55:55,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 09:55:55,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 09:55:55,991 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-07-21 09:55:55,991 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-07-21 09:55:55,992 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-07-21 09:55:55,992 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-07-21 09:55:55,992 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 09:55:55,992 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 09:55:55,992 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_iso_xfer [2022-07-21 09:55:55,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_iso_xfer [2022-07-21 09:55:55,993 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-07-21 09:55:55,993 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-07-21 09:55:55,993 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_send_command [2022-07-21 09:55:55,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_send_command [2022-07-21 09:55:55,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 09:55:55,994 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-21 09:55:55,994 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-21 09:55:55,994 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_setup_urbs [2022-07-21 09:55:55,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_setup_urbs [2022-07-21 09:55:55,994 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2022-07-21 09:55:55,995 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2022-07-21 09:55:55,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2022-07-21 09:55:55,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2022-07-21 09:55:55,995 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_pids [2022-07-21 09:55:55,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_pids [2022-07-21 09:55:55,995 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit [2022-07-21 09:55:55,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit [2022-07-21 09:55:55,996 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_usb [2022-07-21 09:55:55,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_usb [2022-07-21 09:55:55,997 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_release [2022-07-21 09:55:55,997 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_release [2022-07-21 09:55:55,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 09:55:55,998 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-21 09:55:55,998 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-21 09:55:55,998 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init [2022-07-21 09:55:55,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init [2022-07-21 09:55:55,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 09:55:55,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 09:55:55,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 09:55:55,999 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2022-07-21 09:55:56,000 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2022-07-21 09:55:56,000 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-21 09:55:56,000 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-21 09:55:56,000 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 09:55:56,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 09:55:56,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 09:55:56,001 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-07-21 09:55:56,001 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-07-21 09:55:56,001 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-21 09:55:56,001 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-21 09:55:56,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-07-21 09:55:56,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-07-21 09:55:56,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 09:55:56,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 09:55:56,002 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_probe [2022-07-21 09:55:56,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_probe [2022-07-21 09:55:56,002 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-21 09:55:56,002 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-21 09:55:56,002 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_release [2022-07-21 09:55:56,003 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_release [2022-07-21 09:55:56,003 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-21 09:55:56,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-21 09:55:56,003 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-21 09:55:56,003 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-21 09:55:56,004 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-21 09:55:56,004 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-21 09:55:56,004 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-21 09:55:56,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-21 09:55:56,005 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_dvb [2022-07-21 09:55:56,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_dvb [2022-07-21 09:55:56,005 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-21 09:55:56,006 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-21 09:55:56,006 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-21 09:55:56,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-21 09:55:56,006 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_disconnect [2022-07-21 09:55:56,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_disconnect [2022-07-21 09:55:56,007 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-07-21 09:55:56,007 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-07-21 09:55:56,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2022-07-21 09:55:56,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2022-07-21 09:55:56,007 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_model [2022-07-21 09:55:56,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_model [2022-07-21 09:55:56,008 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-07-21 09:55:56,008 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-07-21 09:55:56,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 09:55:56,008 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2022-07-21 09:55:56,008 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2022-07-21 09:55:56,008 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_stop_iso_xfer [2022-07-21 09:55:56,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_stop_iso_xfer [2022-07-21 09:55:56,009 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-07-21 09:55:56,010 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-07-21 09:55:56,012 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_filter_pes2ts_init [2022-07-21 09:55:56,012 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_filter_pes2ts_init [2022-07-21 09:55:56,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-21 09:55:56,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 09:55:56,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 09:55:56,631 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 09:55:56,635 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 09:55:56,778 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-21 09:55:56,847 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2022-07-21 09:55:56,847 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2022-07-21 09:55:57,092 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-21 09:55:57,906 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##239: assume false; [2022-07-21 09:55:57,906 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##240: assume !false; [2022-07-21 09:55:58,116 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2022-07-21 09:55:58,127 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-21 09:55:58,127 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-21 09:56:00,567 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##78: assume !false; [2022-07-21 09:56:00,567 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##77: assume false; [2022-07-21 09:56:00,567 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##39: assume !false; [2022-07-21 09:56:00,567 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume false; [2022-07-21 09:56:00,568 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L8653: ttusb_dec_start_feed_#res#1 := 0; [2022-07-21 09:56:00,900 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-21 09:56:01,586 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2022-07-21 09:56:01,586 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2022-07-21 09:56:01,625 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 09:56:01,642 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 09:56:01,642 INFO L299 CfgBuilder]: Removed 38 assume(true) statements. [2022-07-21 09:56:01,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:56:01 BoogieIcfgContainer [2022-07-21 09:56:01,645 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 09:56:01,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 09:56:01,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 09:56:01,650 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 09:56:01,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 09:55:53" (1/3) ... [2022-07-21 09:56:01,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55333521 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:56:01, skipping insertion in model container [2022-07-21 09:56:01,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:55:55" (2/3) ... [2022-07-21 09:56:01,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55333521 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:56:01, skipping insertion in model container [2022-07-21 09:56:01,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:56:01" (3/3) ... [2022-07-21 09:56:01,653 INFO L111 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i [2022-07-21 09:56:01,665 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 09:56:01,665 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 09:56:01,749 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 09:56:01,758 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4e398be9, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@450c8e44 [2022-07-21 09:56:01,758 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 09:56:01,766 INFO L276 IsEmpty]: Start isEmpty. Operand has 1017 states, 763 states have (on average 1.4233289646133682) internal successors, (1086), 787 states have internal predecessors, (1086), 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) [2022-07-21 09:56:01,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-21 09:56:01,772 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:56:01,773 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:56:01,773 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:56:01,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:56:01,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1801714647, now seen corresponding path program 1 times [2022-07-21 09:56:01,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:56:01,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618252909] [2022-07-21 09:56:01,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:56:01,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:56:02,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:02,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 09:56:02,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:02,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:56:02,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:56:02,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618252909] [2022-07-21 09:56:02,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618252909] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:56:02,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:56:02,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 09:56:02,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653452130] [2022-07-21 09:56:02,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:56:02,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 09:56:02,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:56:02,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 09:56:02,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 09:56:02,414 INFO L87 Difference]: Start difference. First operand has 1017 states, 763 states have (on average 1.4233289646133682) internal successors, (1086), 787 states have internal predecessors, (1086), 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) [2022-07-21 09:56:02,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:56:02,674 INFO L93 Difference]: Finished difference Result 3011 states and 4514 transitions. [2022-07-21 09:56:02,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 09:56:02,677 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 [2022-07-21 09:56:02,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:56:02,708 INFO L225 Difference]: With dead ends: 3011 [2022-07-21 09:56:02,709 INFO L226 Difference]: Without dead ends: 1992 [2022-07-21 09:56:02,722 INFO L412 NwaCegarLoop]: 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 [2022-07-21 09:56:02,727 INFO L413 NwaCegarLoop]: 1994 mSDtfsCounter, 1373 mSDsluCounter, 1373 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1373 SdHoareTripleChecker+Valid, 3367 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 [2022-07-21 09:56:02,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1373 Valid, 3367 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 09:56:02,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1992 states. [2022-07-21 09:56:02,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1992 to 1988. [2022-07-21 09:56:02,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1988 states, 1495 states have (on average 1.3036789297658864) internal successors, (1949), 1523 states have internal predecessors, (1949), 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) [2022-07-21 09:56:02,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1988 states to 1988 states and 2737 transitions. [2022-07-21 09:56:02,892 INFO L78 Accepts]: Start accepts. Automaton has 1988 states and 2737 transitions. Word has length 16 [2022-07-21 09:56:02,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:56:02,893 INFO L495 AbstractCegarLoop]: Abstraction has 1988 states and 2737 transitions. [2022-07-21 09:56:02,893 INFO L496 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) [2022-07-21 09:56:02,894 INFO L276 IsEmpty]: Start isEmpty. Operand 1988 states and 2737 transitions. [2022-07-21 09:56:02,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-21 09:56:02,894 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:56:02,894 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:56:02,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 09:56:02,895 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:56:02,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:56:02,896 INFO L85 PathProgramCache]: Analyzing trace with hash -18956933, now seen corresponding path program 1 times [2022-07-21 09:56:02,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:56:02,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250043819] [2022-07-21 09:56:02,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:56:02,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:56:03,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:03,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 09:56:03,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:03,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:56:03,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:56:03,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250043819] [2022-07-21 09:56:03,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250043819] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:56:03,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:56:03,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 09:56:03,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414650616] [2022-07-21 09:56:03,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:56:03,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 09:56:03,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:56:03,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 09:56:03,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 09:56:03,155 INFO L87 Difference]: Start difference. First operand 1988 states and 2737 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) [2022-07-21 09:56:03,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:56:03,304 INFO L93 Difference]: Finished difference Result 5937 states and 8252 transitions. [2022-07-21 09:56:03,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 09:56:03,304 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 [2022-07-21 09:56:03,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:56:03,329 INFO L225 Difference]: With dead ends: 5937 [2022-07-21 09:56:03,330 INFO L226 Difference]: Without dead ends: 3953 [2022-07-21 09:56:03,343 INFO L412 NwaCegarLoop]: 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 [2022-07-21 09:56:03,345 INFO L413 NwaCegarLoop]: 1814 mSDtfsCounter, 1360 mSDsluCounter, 1366 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1360 SdHoareTripleChecker+Valid, 3180 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 [2022-07-21 09:56:03,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1360 Valid, 3180 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 09:56:03,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3953 states. [2022-07-21 09:56:03,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3953 to 3946. [2022-07-21 09:56:03,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3946 states, 2969 states have (on average 1.3031323678006064) internal successors, (3869), 3020 states have internal predecessors, (3869), 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) [2022-07-21 09:56:03,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3946 states to 3946 states and 5473 transitions. [2022-07-21 09:56:03,573 INFO L78 Accepts]: Start accepts. Automaton has 3946 states and 5473 transitions. Word has length 17 [2022-07-21 09:56:03,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:56:03,573 INFO L495 AbstractCegarLoop]: Abstraction has 3946 states and 5473 transitions. [2022-07-21 09:56:03,573 INFO L496 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) [2022-07-21 09:56:03,574 INFO L276 IsEmpty]: Start isEmpty. Operand 3946 states and 5473 transitions. [2022-07-21 09:56:03,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-07-21 09:56:03,578 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:56:03,580 INFO L195 NwaCegarLoop]: 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] [2022-07-21 09:56:03,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 09:56:03,581 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:56:03,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:56:03,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1768602684, now seen corresponding path program 1 times [2022-07-21 09:56:03,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:56:03,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739926411] [2022-07-21 09:56:03,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:56:03,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:56:03,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:03,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 09:56:03,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:03,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-21 09:56:03,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:03,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 09:56:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:03,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:56:03,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:56:03,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739926411] [2022-07-21 09:56:03,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739926411] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:56:03,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:56:03,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 09:56:03,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484548075] [2022-07-21 09:56:03,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:56:03,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 09:56:03,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:56:03,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 09:56:03,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 09:56:03,905 INFO L87 Difference]: Start difference. First operand 3946 states and 5473 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) [2022-07-21 09:56:06,325 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 09:56:09,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:56:09,632 INFO L93 Difference]: Finished difference Result 8818 states and 12470 transitions. [2022-07-21 09:56:09,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 09:56:09,633 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 [2022-07-21 09:56:09,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:56:09,663 INFO L225 Difference]: With dead ends: 8818 [2022-07-21 09:56:09,664 INFO L226 Difference]: Without dead ends: 4880 [2022-07-21 09:56:09,684 INFO L412 NwaCegarLoop]: 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 [2022-07-21 09:56:09,687 INFO L413 NwaCegarLoop]: 1473 mSDtfsCounter, 544 mSDsluCounter, 4046 mSDsCounter, 0 mSdLazyCounter, 1573 mSolverCounterSat, 246 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 5519 SdHoareTripleChecker+Invalid, 1820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 1573 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-07-21 09:56:09,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 5519 Invalid, 1820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 1573 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-07-21 09:56:09,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4880 states. [2022-07-21 09:56:09,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4880 to 4051. [2022-07-21 09:56:09,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4051 states, 3044 states have (on average 1.2992772667542707) internal successors, (3955), 3101 states have internal predecessors, (3955), 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) [2022-07-21 09:56:09,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4051 states to 4051 states and 5640 transitions. [2022-07-21 09:56:09,863 INFO L78 Accepts]: Start accepts. Automaton has 4051 states and 5640 transitions. Word has length 60 [2022-07-21 09:56:09,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:56:09,864 INFO L495 AbstractCegarLoop]: Abstraction has 4051 states and 5640 transitions. [2022-07-21 09:56:09,864 INFO L496 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) [2022-07-21 09:56:09,864 INFO L276 IsEmpty]: Start isEmpty. Operand 4051 states and 5640 transitions. [2022-07-21 09:56:09,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-07-21 09:56:09,871 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:56:09,871 INFO L195 NwaCegarLoop]: 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] [2022-07-21 09:56:09,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 09:56:09,872 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:56:09,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:56:09,872 INFO L85 PathProgramCache]: Analyzing trace with hash -156930627, now seen corresponding path program 1 times [2022-07-21 09:56:09,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:56:09,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135851713] [2022-07-21 09:56:09,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:56:09,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:56:09,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:10,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 09:56:10,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:10,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-21 09:56:10,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:10,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 09:56:10,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:10,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 09:56:10,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:56:10,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135851713] [2022-07-21 09:56:10,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135851713] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:56:10,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:56:10,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 09:56:10,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600772231] [2022-07-21 09:56:10,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:56:10,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 09:56:10,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:56:10,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 09:56:10,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 09:56:10,149 INFO L87 Difference]: Start difference. First operand 4051 states and 5640 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 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) [2022-07-21 09:56:12,510 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 09:56:14,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:56:14,622 INFO L93 Difference]: Finished difference Result 8955 states and 12692 transitions. [2022-07-21 09:56:14,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 09:56:14,623 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 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 [2022-07-21 09:56:14,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:56:14,649 INFO L225 Difference]: With dead ends: 8955 [2022-07-21 09:56:14,649 INFO L226 Difference]: Without dead ends: 4915 [2022-07-21 09:56:14,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 09:56:14,672 INFO L413 NwaCegarLoop]: 1476 mSDtfsCounter, 554 mSDsluCounter, 1764 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 246 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 3240 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-07-21 09:56:14,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [618 Valid, 3240 Invalid, 977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 730 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-07-21 09:56:14,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4915 states. [2022-07-21 09:56:14,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4915 to 4086. [2022-07-21 09:56:14,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4086 states, 3079 states have (on average 1.299447872685937) internal successors, (4001), 3136 states have internal predecessors, (4001), 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) [2022-07-21 09:56:14,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4086 states to 4086 states and 5686 transitions. [2022-07-21 09:56:14,839 INFO L78 Accepts]: Start accepts. Automaton has 4086 states and 5686 transitions. Word has length 60 [2022-07-21 09:56:14,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:56:14,840 INFO L495 AbstractCegarLoop]: Abstraction has 4086 states and 5686 transitions. [2022-07-21 09:56:14,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 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) [2022-07-21 09:56:14,840 INFO L276 IsEmpty]: Start isEmpty. Operand 4086 states and 5686 transitions. [2022-07-21 09:56:14,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-21 09:56:14,842 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:56:14,842 INFO L195 NwaCegarLoop]: 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] [2022-07-21 09:56:14,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 09:56:14,843 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:56:14,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:56:14,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1752503899, now seen corresponding path program 1 times [2022-07-21 09:56:14,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:56:14,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960815217] [2022-07-21 09:56:14,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:56:14,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:56:14,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:15,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 09:56:15,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:15,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 09:56:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:15,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 09:56:15,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:15,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:56:15,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:15,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:56:15,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:15,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 09:56:15,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:15,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 09:56:15,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:15,227 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-21 09:56:15,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:56:15,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960815217] [2022-07-21 09:56:15,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960815217] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:56:15,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:56:15,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 09:56:15,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79057010] [2022-07-21 09:56:15,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:56:15,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 09:56:15,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:56:15,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 09:56:15,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-21 09:56:15,230 INFO L87 Difference]: Start difference. First operand 4086 states and 5686 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) [2022-07-21 09:56:18,224 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 09:56:26,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:56:26,926 INFO L93 Difference]: Finished difference Result 14421 states and 21784 transitions. [2022-07-21 09:56:26,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 09:56:26,928 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 [2022-07-21 09:56:26,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:56:27,018 INFO L225 Difference]: With dead ends: 14421 [2022-07-21 09:56:27,018 INFO L226 Difference]: Without dead ends: 10347 [2022-07-21 09:56:27,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2022-07-21 09:56:27,066 INFO L413 NwaCegarLoop]: 2079 mSDtfsCounter, 2811 mSDsluCounter, 4433 mSDsCounter, 0 mSdLazyCounter, 4847 mSolverCounterSat, 1182 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3020 SdHoareTripleChecker+Valid, 6512 SdHoareTripleChecker+Invalid, 6030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1182 IncrementalHoareTripleChecker+Valid, 4847 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-07-21 09:56:27,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3020 Valid, 6512 Invalid, 6030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1182 Valid, 4847 Invalid, 1 Unknown, 0 Unchecked, 11.0s Time] [2022-07-21 09:56:27,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10347 states. [2022-07-21 09:56:27,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10347 to 8345. [2022-07-21 09:56:27,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8345 states, 6262 states have (on average 1.2986266368572341) internal successors, (8132), 6459 states have internal predecessors, (8132), 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) [2022-07-21 09:56:27,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8345 states to 8345 states and 12220 transitions. [2022-07-21 09:56:27,696 INFO L78 Accepts]: Start accepts. Automaton has 8345 states and 12220 transitions. Word has length 94 [2022-07-21 09:56:27,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:56:27,698 INFO L495 AbstractCegarLoop]: Abstraction has 8345 states and 12220 transitions. [2022-07-21 09:56:27,699 INFO L496 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) [2022-07-21 09:56:27,699 INFO L276 IsEmpty]: Start isEmpty. Operand 8345 states and 12220 transitions. [2022-07-21 09:56:27,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-21 09:56:27,701 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:56:27,701 INFO L195 NwaCegarLoop]: 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] [2022-07-21 09:56:27,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 09:56:27,702 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:56:27,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:56:27,702 INFO L85 PathProgramCache]: Analyzing trace with hash -865281053, now seen corresponding path program 1 times [2022-07-21 09:56:27,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:56:27,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563396937] [2022-07-21 09:56:27,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:56:27,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:56:27,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:27,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 09:56:27,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:27,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 09:56:27,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:28,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 09:56:28,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:28,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:56:28,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:28,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:56:28,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:28,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 09:56:28,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:28,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 09:56:28,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:28,105 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-21 09:56:28,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:56:28,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563396937] [2022-07-21 09:56:28,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563396937] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:56:28,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:56:28,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 09:56:28,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650552459] [2022-07-21 09:56:28,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:56:28,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 09:56:28,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:56:28,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 09:56:28,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 09:56:28,108 INFO L87 Difference]: Start difference. First operand 8345 states and 12220 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) [2022-07-21 09:56:30,763 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 09:56:36,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:56:36,136 INFO L93 Difference]: Finished difference Result 19289 states and 29154 transitions. [2022-07-21 09:56:36,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 09:56:36,137 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 [2022-07-21 09:56:36,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:56:36,203 INFO L225 Difference]: With dead ends: 19289 [2022-07-21 09:56:36,203 INFO L226 Difference]: Without dead ends: 10956 [2022-07-21 09:56:36,252 INFO L412 NwaCegarLoop]: 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 [2022-07-21 09:56:36,253 INFO L413 NwaCegarLoop]: 1328 mSDtfsCounter, 2518 mSDsluCounter, 2912 mSDsCounter, 0 mSdLazyCounter, 2529 mSolverCounterSat, 1281 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2603 SdHoareTripleChecker+Valid, 4240 SdHoareTripleChecker+Invalid, 3811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1281 IncrementalHoareTripleChecker+Valid, 2529 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-07-21 09:56:36,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2603 Valid, 4240 Invalid, 3811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1281 Valid, 2529 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2022-07-21 09:56:36,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10956 states. [2022-07-21 09:56:36,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10956 to 8724. [2022-07-21 09:56:36,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8724 states, 6534 states have (on average 1.2976737067646158) internal successors, (8479), 6741 states have internal predecessors, (8479), 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) [2022-07-21 09:56:36,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8724 states to 8724 states and 12823 transitions. [2022-07-21 09:56:36,911 INFO L78 Accepts]: Start accepts. Automaton has 8724 states and 12823 transitions. Word has length 94 [2022-07-21 09:56:36,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:56:36,914 INFO L495 AbstractCegarLoop]: Abstraction has 8724 states and 12823 transitions. [2022-07-21 09:56:36,914 INFO L496 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) [2022-07-21 09:56:36,914 INFO L276 IsEmpty]: Start isEmpty. Operand 8724 states and 12823 transitions. [2022-07-21 09:56:36,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-21 09:56:36,919 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:56:36,919 INFO L195 NwaCegarLoop]: 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] [2022-07-21 09:56:36,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 09:56:36,920 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:56:36,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:56:36,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1105666320, now seen corresponding path program 1 times [2022-07-21 09:56:36,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:56:36,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999689584] [2022-07-21 09:56:36,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:56:36,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:56:37,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:37,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 09:56:37,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:37,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 09:56:37,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:37,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 09:56:37,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:37,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:56:37,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:37,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:56:37,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:37,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 09:56:37,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:37,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 09:56:37,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:37,224 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-21 09:56:37,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:56:37,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999689584] [2022-07-21 09:56:37,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999689584] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:56:37,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:56:37,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 09:56:37,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070260538] [2022-07-21 09:56:37,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:56:37,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 09:56:37,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:56:37,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 09:56:37,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-21 09:56:37,227 INFO L87 Difference]: Start difference. First operand 8724 states and 12823 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) [2022-07-21 09:56:39,739 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 09:56:43,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:56:43,381 INFO L93 Difference]: Finished difference Result 19579 states and 30376 transitions. [2022-07-21 09:56:43,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 09:56:43,382 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 [2022-07-21 09:56:43,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:56:43,439 INFO L225 Difference]: With dead ends: 19579 [2022-07-21 09:56:43,439 INFO L226 Difference]: Without dead ends: 10867 [2022-07-21 09:56:43,491 INFO L412 NwaCegarLoop]: 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 [2022-07-21 09:56:43,492 INFO L413 NwaCegarLoop]: 1406 mSDtfsCounter, 625 mSDsluCounter, 2230 mSDsCounter, 0 mSdLazyCounter, 1570 mSolverCounterSat, 286 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 3636 SdHoareTripleChecker+Invalid, 1857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 1570 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-07-21 09:56:43,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [692 Valid, 3636 Invalid, 1857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 1570 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-07-21 09:56:43,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10867 states. [2022-07-21 09:56:44,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10867 to 8750. [2022-07-21 09:56:44,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8750 states, 6560 states have (on average 1.2964939024390243) internal successors, (8505), 6767 states have internal predecessors, (8505), 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) [2022-07-21 09:56:44,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8750 states to 8750 states and 12849 transitions. [2022-07-21 09:56:44,126 INFO L78 Accepts]: Start accepts. Automaton has 8750 states and 12849 transitions. Word has length 103 [2022-07-21 09:56:44,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:56:44,127 INFO L495 AbstractCegarLoop]: Abstraction has 8750 states and 12849 transitions. [2022-07-21 09:56:44,127 INFO L496 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) [2022-07-21 09:56:44,127 INFO L276 IsEmpty]: Start isEmpty. Operand 8750 states and 12849 transitions. [2022-07-21 09:56:44,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-07-21 09:56:44,129 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:56:44,129 INFO L195 NwaCegarLoop]: 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] [2022-07-21 09:56:44,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 09:56:44,129 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:56:44,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:56:44,130 INFO L85 PathProgramCache]: Analyzing trace with hash 387197066, now seen corresponding path program 1 times [2022-07-21 09:56:44,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:56:44,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551482840] [2022-07-21 09:56:44,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:56:44,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:56:44,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:44,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 09:56:44,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:44,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 09:56:44,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:44,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 09:56:44,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:44,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:56:44,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:44,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:56:44,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:44,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 09:56:44,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:44,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 09:56:44,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:44,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 09:56:44,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:44,468 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-21 09:56:44,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:56:44,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551482840] [2022-07-21 09:56:44,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551482840] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:56:44,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1783337619] [2022-07-21 09:56:44,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:56:44,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:56:44,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:56:44,471 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:56:44,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-21 09:56:45,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:45,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 2804 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 09:56:45,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:56:45,370 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-21 09:56:45,370 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:56:45,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1783337619] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:56:45,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 09:56:45,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2022-07-21 09:56:45,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466439642] [2022-07-21 09:56:45,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:56:45,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 09:56:45,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:56:45,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 09:56:45,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-21 09:56:45,373 INFO L87 Difference]: Start difference. First operand 8750 states and 12849 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) [2022-07-21 09:56:45,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:56:45,767 INFO L93 Difference]: Finished difference Result 17235 states and 25279 transitions. [2022-07-21 09:56:45,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 09:56:45,768 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 [2022-07-21 09:56:45,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:56:45,900 INFO L225 Difference]: With dead ends: 17235 [2022-07-21 09:56:45,900 INFO L226 Difference]: Without dead ends: 8486 [2022-07-21 09:56:45,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-21 09:56:45,934 INFO L413 NwaCegarLoop]: 1382 mSDtfsCounter, 13 mSDsluCounter, 4124 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 5506 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 09:56:45,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 5506 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 09:56:45,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8486 states. [2022-07-21 09:56:46,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8486 to 8438. [2022-07-21 09:56:46,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8438 states, 6314 states have (on average 1.2944250871080138) internal successors, (8173), 6514 states have internal predecessors, (8173), 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) [2022-07-21 09:56:46,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8438 states to 8438 states and 12356 transitions. [2022-07-21 09:56:46,325 INFO L78 Accepts]: Start accepts. Automaton has 8438 states and 12356 transitions. Word has length 111 [2022-07-21 09:56:46,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:56:46,326 INFO L495 AbstractCegarLoop]: Abstraction has 8438 states and 12356 transitions. [2022-07-21 09:56:46,326 INFO L496 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) [2022-07-21 09:56:46,326 INFO L276 IsEmpty]: Start isEmpty. Operand 8438 states and 12356 transitions. [2022-07-21 09:56:46,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-07-21 09:56:46,328 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:56:46,328 INFO L195 NwaCegarLoop]: 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] [2022-07-21 09:56:46,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-21 09:56:46,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:56:46,543 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:56:46,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:56:46,544 INFO L85 PathProgramCache]: Analyzing trace with hash 623950775, now seen corresponding path program 1 times [2022-07-21 09:56:46,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:56:46,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560127158] [2022-07-21 09:56:46,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:56:46,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:56:46,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:46,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 09:56:46,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:46,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 09:56:46,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:46,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 09:56:46,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:46,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:56:46,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:46,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:56:46,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:47,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 09:56:47,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:47,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 09:56:47,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:47,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 09:56:47,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:47,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 09:56:47,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:47,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 09:56:47,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:47,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 09:56:47,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:47,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 09:56:47,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:47,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-21 09:56:47,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:47,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-21 09:56:47,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:47,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:56:47,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:47,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 09:56:47,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:47,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 09:56:47,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:47,149 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-21 09:56:47,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:56:47,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560127158] [2022-07-21 09:56:47,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560127158] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:56:47,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185881606] [2022-07-21 09:56:47,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:56:47,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:56:47,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:56:47,156 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:56:47,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-21 09:56:48,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:48,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 2937 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-21 09:56:48,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:56:48,277 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-21 09:56:48,278 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:56:48,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1185881606] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:56:48,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 09:56:48,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 16 [2022-07-21 09:56:48,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122490562] [2022-07-21 09:56:48,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:56:48,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 09:56:48,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:56:48,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 09:56:48,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2022-07-21 09:56:48,280 INFO L87 Difference]: Start difference. First operand 8438 states and 12356 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) [2022-07-21 09:56:48,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:56:48,594 INFO L93 Difference]: Finished difference Result 8490 states and 12408 transitions. [2022-07-21 09:56:48,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 09:56:48,595 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 [2022-07-21 09:56:48,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:56:48,635 INFO L225 Difference]: With dead ends: 8490 [2022-07-21 09:56:48,635 INFO L226 Difference]: Without dead ends: 8464 [2022-07-21 09:56:48,644 INFO L412 NwaCegarLoop]: 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 [2022-07-21 09:56:48,645 INFO L413 NwaCegarLoop]: 1371 mSDtfsCounter, 1368 mSDsluCounter, 2748 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1369 SdHoareTripleChecker+Valid, 4119 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 09:56:48,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1369 Valid, 4119 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 09:56:48,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8464 states. [2022-07-21 09:56:49,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8464 to 8438. [2022-07-21 09:56:49,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8438 states, 6314 states have (on average 1.2939499524865379) internal successors, (8170), 6514 states have internal predecessors, (8170), 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) [2022-07-21 09:56:49,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8438 states to 8438 states and 12353 transitions. [2022-07-21 09:56:49,068 INFO L78 Accepts]: Start accepts. Automaton has 8438 states and 12353 transitions. Word has length 124 [2022-07-21 09:56:49,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:56:49,069 INFO L495 AbstractCegarLoop]: Abstraction has 8438 states and 12353 transitions. [2022-07-21 09:56:49,069 INFO L496 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) [2022-07-21 09:56:49,069 INFO L276 IsEmpty]: Start isEmpty. Operand 8438 states and 12353 transitions. [2022-07-21 09:56:49,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-07-21 09:56:49,071 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:56:49,071 INFO L195 NwaCegarLoop]: 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] [2022-07-21 09:56:49,105 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-21 09:56:49,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-07-21 09:56:49,287 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:56:49,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:56:49,288 INFO L85 PathProgramCache]: Analyzing trace with hash -2082115524, now seen corresponding path program 1 times [2022-07-21 09:56:49,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:56:49,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972067688] [2022-07-21 09:56:49,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:56:49,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:56:49,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:49,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 09:56:49,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:49,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 09:56:49,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:49,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:56:49,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:49,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:56:49,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:49,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 09:56:49,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:49,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 09:56:49,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:49,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-21 09:56:49,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:49,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 09:56:49,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:49,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 09:56:49,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:49,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 09:56:49,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:49,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 09:56:49,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:49,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 09:56:49,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:49,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 09:56:49,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:49,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:56:49,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:49,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 09:56:49,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:49,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 09:56:49,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:49,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 09:56:49,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:49,979 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-07-21 09:56:49,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:56:49,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972067688] [2022-07-21 09:56:49,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972067688] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:56:49,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189215415] [2022-07-21 09:56:49,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:56:49,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:56:49,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:56:49,982 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:56:49,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-21 09:56:50,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:50,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 3014 conjuncts, 21 conjunts are in the unsatisfiable core [2022-07-21 09:56:50,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:56:51,081 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-21 09:56:51,081 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:56:51,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189215415] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:56:51,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 09:56:51,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-07-21 09:56:51,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633485547] [2022-07-21 09:56:51,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:56:51,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 09:56:51,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:56:51,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 09:56:51,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2022-07-21 09:56:51,084 INFO L87 Difference]: Start difference. First operand 8438 states and 12353 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) [2022-07-21 09:56:51,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:56:51,398 INFO L93 Difference]: Finished difference Result 14689 states and 21854 transitions. [2022-07-21 09:56:51,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 09:56:51,399 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 [2022-07-21 09:56:51,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:56:51,433 INFO L225 Difference]: With dead ends: 14689 [2022-07-21 09:56:51,433 INFO L226 Difference]: Without dead ends: 6299 [2022-07-21 09:56:51,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2022-07-21 09:56:51,481 INFO L413 NwaCegarLoop]: 1369 mSDtfsCounter, 0 mSDsluCounter, 4100 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5469 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 09:56:51,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5469 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 09:56:51,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6299 states. [2022-07-21 09:56:51,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6299 to 6285. [2022-07-21 09:56:51,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6285 states, 4703 states have (on average 1.2925792047629172) internal successors, (6079), 4851 states have internal predecessors, (6079), 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) [2022-07-21 09:56:51,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6285 states to 6285 states and 9137 transitions. [2022-07-21 09:56:51,786 INFO L78 Accepts]: Start accepts. Automaton has 6285 states and 9137 transitions. Word has length 130 [2022-07-21 09:56:51,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:56:51,787 INFO L495 AbstractCegarLoop]: Abstraction has 6285 states and 9137 transitions. [2022-07-21 09:56:51,787 INFO L496 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) [2022-07-21 09:56:51,788 INFO L276 IsEmpty]: Start isEmpty. Operand 6285 states and 9137 transitions. [2022-07-21 09:56:51,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-07-21 09:56:51,789 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:56:51,790 INFO L195 NwaCegarLoop]: 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] [2022-07-21 09:56:51,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-21 09:56:51,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:56:51,998 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:56:51,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:56:51,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1718591214, now seen corresponding path program 1 times [2022-07-21 09:56:51,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:56:51,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286011336] [2022-07-21 09:56:51,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:56:51,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:56:52,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:52,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 09:56:52,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:52,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 09:56:52,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:52,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 09:56:52,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:52,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:56:52,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:52,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:56:52,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:52,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 09:56:52,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:52,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 09:56:52,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:52,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 09:56:52,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:52,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 09:56:52,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:52,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 09:56:52,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:52,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 09:56:52,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:52,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 09:56:52,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:52,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-21 09:56:52,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:52,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-21 09:56:52,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:52,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:56:52,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:52,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 09:56:52,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:52,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-21 09:56:52,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:52,615 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-21 09:56:52,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:56:52,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286011336] [2022-07-21 09:56:52,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286011336] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:56:52,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927443852] [2022-07-21 09:56:52,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:56:52,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:56:52,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:56:52,618 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:56:52,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-21 09:56:53,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:53,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 2949 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 09:56:53,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:56:53,719 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-21 09:56:53,719 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:56:53,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927443852] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:56:53,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 09:56:53,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 15 [2022-07-21 09:56:53,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63307863] [2022-07-21 09:56:53,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:56:53,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 09:56:53,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:56:53,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 09:56:53,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-07-21 09:56:53,721 INFO L87 Difference]: Start difference. First operand 6285 states and 9137 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) [2022-07-21 09:56:53,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:56:53,988 INFO L93 Difference]: Finished difference Result 12522 states and 18220 transitions. [2022-07-21 09:56:53,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 09:56:53,988 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 [2022-07-21 09:56:53,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:56:54,020 INFO L225 Difference]: With dead ends: 12522 [2022-07-21 09:56:54,020 INFO L226 Difference]: Without dead ends: 6285 [2022-07-21 09:56:54,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-07-21 09:56:54,056 INFO L413 NwaCegarLoop]: 1372 mSDtfsCounter, 22 mSDsluCounter, 2700 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 4072 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 09:56:54,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 4072 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 09:56:54,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6285 states. [2022-07-21 09:56:54,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6285 to 6285. [2022-07-21 09:56:54,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6285 states, 4703 states have (on average 1.2915160535828194) internal successors, (6074), 4851 states have internal predecessors, (6074), 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) [2022-07-21 09:56:54,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6285 states to 6285 states and 9132 transitions. [2022-07-21 09:56:54,352 INFO L78 Accepts]: Start accepts. Automaton has 6285 states and 9132 transitions. Word has length 128 [2022-07-21 09:56:54,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:56:54,353 INFO L495 AbstractCegarLoop]: Abstraction has 6285 states and 9132 transitions. [2022-07-21 09:56:54,353 INFO L496 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) [2022-07-21 09:56:54,353 INFO L276 IsEmpty]: Start isEmpty. Operand 6285 states and 9132 transitions. [2022-07-21 09:56:54,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-07-21 09:56:54,356 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:56:54,356 INFO L195 NwaCegarLoop]: 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] [2022-07-21 09:56:54,387 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-21 09:56:54,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:56:54,575 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:56:54,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:56:54,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1120501507, now seen corresponding path program 1 times [2022-07-21 09:56:54,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:56:54,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013184462] [2022-07-21 09:56:54,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:56:54,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:56:54,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:54,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 09:56:54,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:54,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 09:56:54,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:54,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:56:54,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:54,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:56:54,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:55,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 09:56:55,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:55,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 09:56:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:55,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-21 09:56:55,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:55,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 09:56:55,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:55,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 09:56:55,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:55,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 09:56:55,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:55,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 09:56:55,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:55,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 09:56:55,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:55,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 09:56:55,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:55,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:56:55,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:55,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 09:56:55,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:55,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 09:56:55,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:55,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 09:56:55,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:55,151 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-07-21 09:56:55,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:56:55,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013184462] [2022-07-21 09:56:55,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013184462] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:56:55,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046376497] [2022-07-21 09:56:55,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:56:55,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:56:55,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:56:55,154 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:56:55,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-21 09:56:56,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:56:56,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 3013 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-21 09:56:56,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:56:56,382 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-07-21 09:56:56,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 09:56:56,594 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-07-21 09:56:56,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046376497] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 09:56:56,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-07-21 09:56:56,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12, 6] total 18 [2022-07-21 09:56:56,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487783907] [2022-07-21 09:56:56,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:56:56,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 09:56:56,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:56:56,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 09:56:56,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2022-07-21 09:56:56,596 INFO L87 Difference]: Start difference. First operand 6285 states and 9132 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) [2022-07-21 09:56:59,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:56:59,018 INFO L93 Difference]: Finished difference Result 10504 states and 15730 transitions. [2022-07-21 09:56:59,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 09:56:59,019 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 130 [2022-07-21 09:56:59,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:56:59,070 INFO L225 Difference]: With dead ends: 10504 [2022-07-21 09:56:59,070 INFO L226 Difference]: Without dead ends: 10499 [2022-07-21 09:56:59,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2022-07-21 09:56:59,081 INFO L413 NwaCegarLoop]: 2144 mSDtfsCounter, 5080 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 1101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5080 SdHoareTripleChecker+Valid, 2871 SdHoareTripleChecker+Invalid, 1749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1101 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-21 09:56:59,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5080 Valid, 2871 Invalid, 1749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1101 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-21 09:56:59,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10499 states. [2022-07-21 09:56:59,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10499 to 10473. [2022-07-21 09:56:59,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10473 states, 7831 states have (on average 1.2911505554846123) internal successors, (10111), 8077 states have internal predecessors, (10111), 1997 states have call successors, (1997), 494 states have call predecessors, (1997), 644 states have return successors, (3586), 1971 states have call predecessors, (3586), 1993 states have call successors, (3586) [2022-07-21 09:56:59,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10473 states to 10473 states and 15694 transitions. [2022-07-21 09:56:59,653 INFO L78 Accepts]: Start accepts. Automaton has 10473 states and 15694 transitions. Word has length 130 [2022-07-21 09:56:59,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:56:59,655 INFO L495 AbstractCegarLoop]: Abstraction has 10473 states and 15694 transitions. [2022-07-21 09:56:59,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2022-07-21 09:56:59,655 INFO L276 IsEmpty]: Start isEmpty. Operand 10473 states and 15694 transitions. [2022-07-21 09:56:59,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-07-21 09:56:59,660 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:56:59,661 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:56:59,700 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-21 09:56:59,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-21 09:56:59,887 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:56:59,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:56:59,888 INFO L85 PathProgramCache]: Analyzing trace with hash -2046530365, now seen corresponding path program 1 times [2022-07-21 09:56:59,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:56:59,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560724878] [2022-07-21 09:56:59,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:56:59,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:56:59,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:00,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 09:57:00,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:00,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 09:57:00,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:00,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:57:00,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:00,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:57:00,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:00,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 09:57:00,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:00,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 09:57:00,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:00,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-21 09:57:00,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:00,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 09:57:00,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:00,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 09:57:00,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:00,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 09:57:00,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:00,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 09:57:00,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:00,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 09:57:00,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:00,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-21 09:57:00,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:00,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 09:57:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:00,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:57:00,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:00,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 09:57:00,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:00,410 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-21 09:57:00,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:57:00,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560724878] [2022-07-21 09:57:00,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560724878] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:57:00,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28028753] [2022-07-21 09:57:00,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:57:00,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:57:00,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:57:00,412 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:57:00,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-21 09:57:01,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:01,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 3106 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-21 09:57:01,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:57:01,378 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-07-21 09:57:01,378 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:57:01,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [28028753] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:57:01,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 09:57:01,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-07-21 09:57:01,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642401720] [2022-07-21 09:57:01,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:57:01,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 09:57:01,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:57:01,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 09:57:01,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2022-07-21 09:57:01,380 INFO L87 Difference]: Start difference. First operand 10473 states and 15694 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 3 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-21 09:57:02,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:57:02,307 INFO L93 Difference]: Finished difference Result 25908 states and 40840 transitions. [2022-07-21 09:57:02,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 09:57:02,307 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 3 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 148 [2022-07-21 09:57:02,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:57:02,396 INFO L225 Difference]: With dead ends: 25908 [2022-07-21 09:57:02,396 INFO L226 Difference]: Without dead ends: 15483 [2022-07-21 09:57:02,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2022-07-21 09:57:02,482 INFO L413 NwaCegarLoop]: 1889 mSDtfsCounter, 1067 mSDsluCounter, 4818 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1125 SdHoareTripleChecker+Valid, 6707 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 09:57:02,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1125 Valid, 6707 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 09:57:02,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15483 states. [2022-07-21 09:57:03,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15483 to 10553. [2022-07-21 09:57:03,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10553 states, 7901 states have (on average 1.2898367295279078) internal successors, (10191), 8147 states have internal predecessors, (10191), 2007 states have call successors, (2007), 494 states have call predecessors, (2007), 644 states have return successors, (3596), 1981 states have call predecessors, (3596), 2003 states have call successors, (3596) [2022-07-21 09:57:03,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10553 states to 10553 states and 15794 transitions. [2022-07-21 09:57:03,280 INFO L78 Accepts]: Start accepts. Automaton has 10553 states and 15794 transitions. Word has length 148 [2022-07-21 09:57:03,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:57:03,280 INFO L495 AbstractCegarLoop]: Abstraction has 10553 states and 15794 transitions. [2022-07-21 09:57:03,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 3 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-21 09:57:03,281 INFO L276 IsEmpty]: Start isEmpty. Operand 10553 states and 15794 transitions. [2022-07-21 09:57:03,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-07-21 09:57:03,283 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:57:03,284 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:57:03,315 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-21 09:57:03,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:57:03,506 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:57:03,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:57:03,506 INFO L85 PathProgramCache]: Analyzing trace with hash -118257663, now seen corresponding path program 1 times [2022-07-21 09:57:03,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:57:03,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203888679] [2022-07-21 09:57:03,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:57:03,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:57:03,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:03,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 09:57:03,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:03,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 09:57:03,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:03,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:57:03,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:03,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:57:03,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:03,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 09:57:03,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:03,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 09:57:03,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:03,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-21 09:57:03,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:03,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 09:57:03,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:03,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 09:57:03,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:03,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 09:57:03,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:03,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 09:57:03,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:03,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 09:57:03,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:03,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-21 09:57:03,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:03,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 09:57:03,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:03,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:57:03,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:03,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 09:57:03,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:04,004 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-21 09:57:04,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:57:04,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203888679] [2022-07-21 09:57:04,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203888679] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:57:04,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972055981] [2022-07-21 09:57:04,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:57:04,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:57:04,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:57:04,007 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:57:04,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-21 09:57:04,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:04,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 3099 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 09:57:04,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:57:04,999 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-07-21 09:57:04,999 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:57:04,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972055981] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:57:04,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 09:57:05,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2022-07-21 09:57:05,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975835843] [2022-07-21 09:57:05,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:57:05,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 09:57:05,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:57:05,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 09:57:05,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2022-07-21 09:57:05,001 INFO L87 Difference]: Start difference. First operand 10553 states and 15794 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-21 09:57:05,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:57:05,482 INFO L93 Difference]: Finished difference Result 20588 states and 31782 transitions. [2022-07-21 09:57:05,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 09:57:05,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 148 [2022-07-21 09:57:05,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:57:05,512 INFO L225 Difference]: With dead ends: 20588 [2022-07-21 09:57:05,512 INFO L226 Difference]: Without dead ends: 9887 [2022-07-21 09:57:05,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2022-07-21 09:57:05,558 INFO L413 NwaCegarLoop]: 1300 mSDtfsCounter, 3 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2595 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 09:57:05,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2595 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 09:57:05,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9887 states. [2022-07-21 09:57:05,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9887 to 9887. [2022-07-21 09:57:06,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9887 states, 7285 states have (on average 1.2797529169526425) internal successors, (9323), 7531 states have internal predecessors, (9323), 1957 states have call successors, (1957), 494 states have call predecessors, (1957), 644 states have return successors, (3532), 1931 states have call predecessors, (3532), 1953 states have call successors, (3532) [2022-07-21 09:57:06,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9887 states to 9887 states and 14812 transitions. [2022-07-21 09:57:06,055 INFO L78 Accepts]: Start accepts. Automaton has 9887 states and 14812 transitions. Word has length 148 [2022-07-21 09:57:06,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:57:06,055 INFO L495 AbstractCegarLoop]: Abstraction has 9887 states and 14812 transitions. [2022-07-21 09:57:06,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-21 09:57:06,056 INFO L276 IsEmpty]: Start isEmpty. Operand 9887 states and 14812 transitions. [2022-07-21 09:57:06,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-07-21 09:57:06,060 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:57:06,060 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:57:06,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-21 09:57:06,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:57:06,288 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:57:06,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:57:06,288 INFO L85 PathProgramCache]: Analyzing trace with hash -956951615, now seen corresponding path program 1 times [2022-07-21 09:57:06,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:57:06,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20664204] [2022-07-21 09:57:06,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:57:06,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:57:06,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:06,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 09:57:06,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:06,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 09:57:06,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:06,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 09:57:06,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:06,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:57:06,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:06,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:57:06,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:06,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 09:57:06,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:06,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 09:57:06,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:06,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 09:57:06,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:06,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 09:57:06,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:06,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 09:57:06,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:06,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 09:57:06,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:06,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 09:57:06,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:06,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-21 09:57:06,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:06,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-21 09:57:06,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:06,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:57:06,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:06,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 09:57:06,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:06,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 09:57:06,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:06,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:57:06,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:06,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-21 09:57:06,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:06,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 09:57:06,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:06,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-21 09:57:06,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:06,909 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-21 09:57:06,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:57:06,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20664204] [2022-07-21 09:57:06,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20664204] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:57:06,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585522495] [2022-07-21 09:57:06,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:57:06,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:57:06,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:57:06,912 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:57:06,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-21 09:57:07,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:07,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 3122 conjuncts, 49 conjunts are in the unsatisfiable core [2022-07-21 09:57:07,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:57:08,140 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-07-21 09:57:08,140 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:57:08,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [585522495] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:57:08,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 09:57:08,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 14 [2022-07-21 09:57:08,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237514411] [2022-07-21 09:57:08,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:57:08,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 09:57:08,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:57:08,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 09:57:08,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-07-21 09:57:08,142 INFO L87 Difference]: Start difference. First operand 9887 states and 14812 transitions. Second operand has 10 states, 10 states have (on average 10.0) internal successors, (100), 7 states have internal predecessors, (100), 2 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (21), 5 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-21 09:57:08,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:57:08,572 INFO L93 Difference]: Finished difference Result 19704 states and 30481 transitions. [2022-07-21 09:57:08,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 09:57:08,572 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 7 states have internal predecessors, (100), 2 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (21), 5 states have call predecessors, (21), 2 states have call successors, (21) Word has length 161 [2022-07-21 09:57:08,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:57:08,617 INFO L225 Difference]: With dead ends: 19704 [2022-07-21 09:57:08,618 INFO L226 Difference]: Without dead ends: 9849 [2022-07-21 09:57:08,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 199 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-07-21 09:57:08,670 INFO L413 NwaCegarLoop]: 1279 mSDtfsCounter, 4 mSDsluCounter, 10192 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 11471 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 09:57:08,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 11471 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 09:57:08,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9849 states. [2022-07-21 09:57:09,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9849 to 9828. [2022-07-21 09:57:09,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9828 states, 7244 states have (on average 1.2763666482606295) internal successors, (9246), 7471 states have internal predecessors, (9246), 1937 states have call successors, (1937), 489 states have call predecessors, (1937), 646 states have return successors, (3522), 1937 states have call predecessors, (3522), 1933 states have call successors, (3522) [2022-07-21 09:57:09,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9828 states to 9828 states and 14705 transitions. [2022-07-21 09:57:09,122 INFO L78 Accepts]: Start accepts. Automaton has 9828 states and 14705 transitions. Word has length 161 [2022-07-21 09:57:09,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:57:09,122 INFO L495 AbstractCegarLoop]: Abstraction has 9828 states and 14705 transitions. [2022-07-21 09:57:09,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 7 states have internal predecessors, (100), 2 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (21), 5 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-21 09:57:09,123 INFO L276 IsEmpty]: Start isEmpty. Operand 9828 states and 14705 transitions. [2022-07-21 09:57:09,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-07-21 09:57:09,128 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:57:09,128 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:57:09,157 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-21 09:57:09,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-07-21 09:57:09,343 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:57:09,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:57:09,392 INFO L85 PathProgramCache]: Analyzing trace with hash -812541920, now seen corresponding path program 1 times [2022-07-21 09:57:09,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:57:09,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410643980] [2022-07-21 09:57:09,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:57:09,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:57:09,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:09,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 09:57:09,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:09,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 09:57:09,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:09,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 09:57:09,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:09,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:57:09,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:09,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:57:09,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:09,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 09:57:09,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:09,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 09:57:09,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:09,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 09:57:09,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:09,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 09:57:09,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:09,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 09:57:09,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:09,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 09:57:09,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:09,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 09:57:09,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:09,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-21 09:57:09,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:09,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-21 09:57:09,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:09,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:57:09,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:09,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 09:57:09,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:10,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 09:57:10,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:10,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:57:10,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:10,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-21 09:57:10,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:10,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 09:57:10,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:10,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-21 09:57:10,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:10,096 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-21 09:57:10,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:57:10,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410643980] [2022-07-21 09:57:10,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410643980] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:57:10,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886679834] [2022-07-21 09:57:10,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:57:10,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:57:10,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:57:10,100 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:57:10,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-21 09:57:11,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:11,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 3131 conjuncts, 25 conjunts are in the unsatisfiable core [2022-07-21 09:57:11,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:57:11,291 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-07-21 09:57:11,291 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:57:11,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886679834] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:57:11,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 09:57:11,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2022-07-21 09:57:11,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143057423] [2022-07-21 09:57:11,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:57:11,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 09:57:11,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:57:11,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 09:57:11,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-07-21 09:57:11,294 INFO L87 Difference]: Start difference. First operand 9828 states and 14705 transitions. Second operand has 10 states, 10 states have (on average 10.5) internal successors, (105), 7 states have internal predecessors, (105), 2 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (21), 5 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-21 09:57:11,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:57:11,817 INFO L93 Difference]: Finished difference Result 17815 states and 27523 transitions. [2022-07-21 09:57:11,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 09:57:11,818 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 7 states have internal predecessors, (105), 2 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (21), 5 states have call predecessors, (21), 2 states have call successors, (21) Word has length 161 [2022-07-21 09:57:11,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:57:11,870 INFO L225 Difference]: With dead ends: 17815 [2022-07-21 09:57:11,870 INFO L226 Difference]: Without dead ends: 9867 [2022-07-21 09:57:11,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2022-07-21 09:57:11,926 INFO L413 NwaCegarLoop]: 1279 mSDtfsCounter, 3 mSDsluCounter, 10212 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 11491 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 09:57:11,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 11491 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 09:57:11,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9867 states. [2022-07-21 09:57:12,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9867 to 9867. [2022-07-21 09:57:12,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9867 states, 7275 states have (on average 1.2758762886597939) internal successors, (9282), 7496 states have internal predecessors, (9282), 1937 states have call successors, (1937), 489 states have call predecessors, (1937), 654 states have return successors, (3548), 1951 states have call predecessors, (3548), 1933 states have call successors, (3548) [2022-07-21 09:57:12,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9867 states to 9867 states and 14767 transitions. [2022-07-21 09:57:12,560 INFO L78 Accepts]: Start accepts. Automaton has 9867 states and 14767 transitions. Word has length 161 [2022-07-21 09:57:12,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:57:12,561 INFO L495 AbstractCegarLoop]: Abstraction has 9867 states and 14767 transitions. [2022-07-21 09:57:12,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 7 states have internal predecessors, (105), 2 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (21), 5 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-21 09:57:12,561 INFO L276 IsEmpty]: Start isEmpty. Operand 9867 states and 14767 transitions. [2022-07-21 09:57:12,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-07-21 09:57:12,566 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:57:12,566 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:57:12,599 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-21 09:57:12,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-21 09:57:12,779 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:57:12,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:57:12,780 INFO L85 PathProgramCache]: Analyzing trace with hash 491851809, now seen corresponding path program 2 times [2022-07-21 09:57:12,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:57:12,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033100518] [2022-07-21 09:57:12,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:57:12,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:57:12,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:12,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 09:57:12,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:13,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 09:57:13,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:13,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 09:57:13,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:13,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:57:13,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:13,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:57:13,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:13,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 09:57:13,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:13,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 09:57:13,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:13,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 09:57:13,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:13,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 09:57:13,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:13,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 09:57:13,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:13,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 09:57:13,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:13,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 09:57:13,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:13,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-21 09:57:13,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:13,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-21 09:57:13,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:13,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:57:13,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:13,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 09:57:13,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:13,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 09:57:13,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:13,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:57:13,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:13,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-21 09:57:13,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:13,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 09:57:13,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:13,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-21 09:57:13,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:13,375 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-21 09:57:13,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:57:13,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033100518] [2022-07-21 09:57:13,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033100518] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:57:13,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672598827] [2022-07-21 09:57:13,377 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 09:57:13,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:57:13,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:57:13,378 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:57:13,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-21 09:57:14,586 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-21 09:57:14,586 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 09:57:14,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 3140 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-21 09:57:14,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:57:14,664 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-07-21 09:57:14,664 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:57:14,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [672598827] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:57:14,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 09:57:14,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 14 [2022-07-21 09:57:14,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434856876] [2022-07-21 09:57:14,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:57:14,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 09:57:14,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:57:14,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 09:57:14,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-07-21 09:57:14,667 INFO L87 Difference]: Start difference. First operand 9867 states and 14767 transitions. Second operand has 10 states, 10 states have (on average 10.5) internal successors, (105), 7 states have internal predecessors, (105), 2 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (21), 5 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-21 09:57:15,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:57:15,194 INFO L93 Difference]: Finished difference Result 19686 states and 30443 transitions. [2022-07-21 09:57:15,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 09:57:15,195 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 7 states have internal predecessors, (105), 2 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (21), 5 states have call predecessors, (21), 2 states have call successors, (21) Word has length 161 [2022-07-21 09:57:15,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:57:15,240 INFO L225 Difference]: With dead ends: 19686 [2022-07-21 09:57:15,240 INFO L226 Difference]: Without dead ends: 9867 [2022-07-21 09:57:15,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 197 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-07-21 09:57:15,290 INFO L413 NwaCegarLoop]: 1289 mSDtfsCounter, 2 mSDsluCounter, 10281 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11570 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 09:57:15,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11570 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 09:57:15,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9867 states. [2022-07-21 09:57:15,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9867 to 9849. [2022-07-21 09:57:15,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9849 states, 7259 states have (on average 1.275244524039124) internal successors, (9257), 7485 states have internal predecessors, (9257), 1937 states have call successors, (1937), 489 states have call predecessors, (1937), 652 states have return successors, (3538), 1944 states have call predecessors, (3538), 1933 states have call successors, (3538) [2022-07-21 09:57:15,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9849 states to 9849 states and 14732 transitions. [2022-07-21 09:57:15,831 INFO L78 Accepts]: Start accepts. Automaton has 9849 states and 14732 transitions. Word has length 161 [2022-07-21 09:57:15,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:57:15,832 INFO L495 AbstractCegarLoop]: Abstraction has 9849 states and 14732 transitions. [2022-07-21 09:57:15,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 7 states have internal predecessors, (105), 2 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (21), 5 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-21 09:57:15,832 INFO L276 IsEmpty]: Start isEmpty. Operand 9849 states and 14732 transitions. [2022-07-21 09:57:15,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-21 09:57:15,841 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:57:15,841 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:57:15,869 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-07-21 09:57:16,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-07-21 09:57:16,055 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:57:16,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:57:16,055 INFO L85 PathProgramCache]: Analyzing trace with hash -2002822577, now seen corresponding path program 1 times [2022-07-21 09:57:16,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:57:16,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737929040] [2022-07-21 09:57:16,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:57:16,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:57:16,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:16,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 09:57:16,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:16,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 09:57:16,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:16,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 09:57:16,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:16,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:57:16,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:16,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:57:16,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:16,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 09:57:16,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:16,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 09:57:16,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:16,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 09:57:16,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:16,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 09:57:16,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:16,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 09:57:16,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:16,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 09:57:16,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:16,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 09:57:16,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:16,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-21 09:57:16,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:17,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-21 09:57:17,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:17,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:57:17,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:17,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 09:57:17,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:17,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-21 09:57:17,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:17,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 09:57:17,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:17,067 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-07-21 09:57:17,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:57:17,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737929040] [2022-07-21 09:57:17,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737929040] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:57:17,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [101019920] [2022-07-21 09:57:17,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:57:17,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:57:17,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:57:17,070 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:57:17,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-21 09:57:18,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:18,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 3163 conjuncts, 42 conjunts are in the unsatisfiable core [2022-07-21 09:57:18,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:57:18,460 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-21 09:57:19,460 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2022-07-21 09:57:19,463 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-07-21 09:57:19,465 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-21 09:57:19,495 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2022-07-21 09:57:19,498 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-07-21 09:57:19,501 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-21 09:57:19,527 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2022-07-21 09:57:19,530 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-07-21 09:57:19,534 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-21 09:57:19,563 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2022-07-21 09:57:19,566 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-07-21 09:57:19,577 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-21 09:57:19,603 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2022-07-21 09:57:19,606 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-07-21 09:57:19,609 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-21 09:57:19,636 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2022-07-21 09:57:19,639 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-07-21 09:57:19,642 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-21 09:57:19,668 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2022-07-21 09:57:19,671 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-07-21 09:57:19,674 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-21 09:57:19,708 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2022-07-21 09:57:19,711 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-07-21 09:57:19,714 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-21 09:57:19,774 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-07-21 09:57:19,774 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 09:57:19,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [101019920] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:57:19,944 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 09:57:19,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15] total 32 [2022-07-21 09:57:19,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142704329] [2022-07-21 09:57:19,944 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 09:57:19,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-07-21 09:57:19,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:57:19,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-07-21 09:57:19,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=938, Unknown=19, NotChecked=0, Total=1056 [2022-07-21 09:57:19,946 INFO L87 Difference]: Start difference. First operand 9849 states and 14732 transitions. Second operand has 32 states, 32 states have (on average 5.40625) internal successors, (173), 23 states have internal predecessors, (173), 14 states have call successors, (39), 9 states have call predecessors, (39), 12 states have return successors, (36), 15 states have call predecessors, (36), 14 states have call successors, (36) [2022-07-21 09:57:29,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 09:57:41,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:57:41,844 INFO L93 Difference]: Finished difference Result 29550 states and 45636 transitions. [2022-07-21 09:57:41,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-07-21 09:57:41,845 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 5.40625) internal successors, (173), 23 states have internal predecessors, (173), 14 states have call successors, (39), 9 states have call predecessors, (39), 12 states have return successors, (36), 15 states have call predecessors, (36), 14 states have call successors, (36) Word has length 163 [2022-07-21 09:57:41,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:57:41,935 INFO L225 Difference]: With dead ends: 29550 [2022-07-21 09:57:41,935 INFO L226 Difference]: Without dead ends: 19749 [2022-07-21 09:57:41,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1182 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=509, Invalid=4154, Unknown=29, NotChecked=0, Total=4692 [2022-07-21 09:57:41,987 INFO L413 NwaCegarLoop]: 1480 mSDtfsCounter, 2545 mSDsluCounter, 12070 mSDsCounter, 0 mSdLazyCounter, 15784 mSolverCounterSat, 1084 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2666 SdHoareTripleChecker+Valid, 13550 SdHoareTripleChecker+Invalid, 18348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1084 IncrementalHoareTripleChecker+Valid, 15784 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 1479 IncrementalHoareTripleChecker+Unchecked, 19.7s IncrementalHoareTripleChecker+Time [2022-07-21 09:57:41,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2666 Valid, 13550 Invalid, 18348 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1084 Valid, 15784 Invalid, 1 Unknown, 1479 Unchecked, 19.7s Time] [2022-07-21 09:57:41,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19749 states. [2022-07-21 09:57:42,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19749 to 17683. [2022-07-21 09:57:42,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17683 states, 12980 states have (on average 1.263482280431433) internal successors, (16400), 13422 states have internal predecessors, (16400), 3362 states have call successors, (3362), 941 states have call predecessors, (3362), 1340 states have return successors, (6800), 3439 states have call predecessors, (6800), 3358 states have call successors, (6800) [2022-07-21 09:57:42,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17683 states to 17683 states and 26562 transitions. [2022-07-21 09:57:42,867 INFO L78 Accepts]: Start accepts. Automaton has 17683 states and 26562 transitions. Word has length 163 [2022-07-21 09:57:42,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:57:42,868 INFO L495 AbstractCegarLoop]: Abstraction has 17683 states and 26562 transitions. [2022-07-21 09:57:42,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 5.40625) internal successors, (173), 23 states have internal predecessors, (173), 14 states have call successors, (39), 9 states have call predecessors, (39), 12 states have return successors, (36), 15 states have call predecessors, (36), 14 states have call successors, (36) [2022-07-21 09:57:42,869 INFO L276 IsEmpty]: Start isEmpty. Operand 17683 states and 26562 transitions. [2022-07-21 09:57:42,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-07-21 09:57:42,873 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:57:42,874 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:57:42,913 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-21 09:57:43,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-21 09:57:43,100 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:57:43,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:57:43,100 INFO L85 PathProgramCache]: Analyzing trace with hash 119108019, now seen corresponding path program 1 times [2022-07-21 09:57:43,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:57:43,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90612412] [2022-07-21 09:57:43,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:57:43,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:57:43,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:43,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 09:57:43,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:43,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 09:57:43,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:43,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:57:43,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:43,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:57:43,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:43,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 09:57:43,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:43,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 09:57:43,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:43,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-21 09:57:43,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:43,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 09:57:43,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:43,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 09:57:43,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:43,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 09:57:43,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:43,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 09:57:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:43,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 09:57:43,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:43,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 09:57:43,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:43,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:57:43,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:43,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 09:57:43,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:43,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 09:57:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:43,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:57:43,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:43,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:57:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:43,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-21 09:57:43,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:43,515 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-07-21 09:57:43,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:57:43,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90612412] [2022-07-21 09:57:43,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90612412] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:57:43,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:57:43,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 09:57:43,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203672603] [2022-07-21 09:57:43,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:57:43,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 09:57:43,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:57:43,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 09:57:43,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 09:57:43,518 INFO L87 Difference]: Start difference. First operand 17683 states and 26562 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 4 states have internal predecessors, (103), 3 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-21 09:57:46,527 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 09:57:49,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:57:49,946 INFO L93 Difference]: Finished difference Result 34452 states and 54349 transitions. [2022-07-21 09:57:49,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 09:57:49,947 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 4 states have internal predecessors, (103), 3 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 166 [2022-07-21 09:57:49,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:57:50,027 INFO L225 Difference]: With dead ends: 34452 [2022-07-21 09:57:50,027 INFO L226 Difference]: Without dead ends: 16817 [2022-07-21 09:57:50,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-07-21 09:57:50,128 INFO L413 NwaCegarLoop]: 840 mSDtfsCounter, 789 mSDsluCounter, 1993 mSDsCounter, 0 mSdLazyCounter, 1672 mSolverCounterSat, 387 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 2833 SdHoareTripleChecker+Invalid, 2060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 387 IncrementalHoareTripleChecker+Valid, 1672 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-07-21 09:57:50,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 2833 Invalid, 2060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [387 Valid, 1672 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-07-21 09:57:50,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16817 states. [2022-07-21 09:57:50,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16817 to 14948. [2022-07-21 09:57:50,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14948 states, 11026 states have (on average 1.250226736803918) internal successors, (13785), 11411 states have internal predecessors, (13785), 2623 states have call successors, (2623), 901 states have call predecessors, (2623), 1298 states have return successors, (5270), 2755 states have call predecessors, (5270), 2619 states have call successors, (5270) [2022-07-21 09:57:50,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14948 states to 14948 states and 21678 transitions. [2022-07-21 09:57:50,946 INFO L78 Accepts]: Start accepts. Automaton has 14948 states and 21678 transitions. Word has length 166 [2022-07-21 09:57:50,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:57:50,947 INFO L495 AbstractCegarLoop]: Abstraction has 14948 states and 21678 transitions. [2022-07-21 09:57:50,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 4 states have internal predecessors, (103), 3 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-21 09:57:50,947 INFO L276 IsEmpty]: Start isEmpty. Operand 14948 states and 21678 transitions. [2022-07-21 09:57:50,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-21 09:57:50,949 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:57:50,949 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:57:50,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-21 09:57:50,949 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:57:50,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:57:50,950 INFO L85 PathProgramCache]: Analyzing trace with hash 644781777, now seen corresponding path program 1 times [2022-07-21 09:57:50,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:57:50,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323918723] [2022-07-21 09:57:50,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:57:50,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:57:51,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:51,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 09:57:51,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:51,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 09:57:51,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:51,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 09:57:51,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:51,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:57:51,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:51,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:57:51,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:51,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 09:57:51,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:51,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 09:57:51,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:51,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 09:57:51,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:51,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 09:57:51,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:51,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 09:57:51,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:51,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 09:57:51,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:51,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 09:57:51,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:51,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-21 09:57:51,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:51,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-21 09:57:51,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:51,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:57:51,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:51,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 09:57:51,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:51,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-21 09:57:51,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:51,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 09:57:51,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:51,761 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-07-21 09:57:51,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:57:51,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323918723] [2022-07-21 09:57:51,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323918723] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:57:51,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378424040] [2022-07-21 09:57:51,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:57:51,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:57:51,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:57:51,763 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:57:51,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-21 09:57:52,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:57:52,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 3164 conjuncts, 53 conjunts are in the unsatisfiable core [2022-07-21 09:57:53,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:57:53,548 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-21 09:57:53,548 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-07-21 09:57:53,552 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-21 09:57:53,596 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-21 09:57:53,623 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-21 09:57:53,624 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 24 [2022-07-21 09:57:53,638 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-21 09:57:53,664 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-21 09:57:53,664 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 24 [2022-07-21 09:57:53,681 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-21 09:57:53,714 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-21 09:57:53,715 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 24 [2022-07-21 09:57:53,736 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-21 09:57:53,768 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-21 09:57:53,769 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 24 [2022-07-21 09:57:53,795 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-21 09:57:53,841 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-21 09:57:53,841 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 24 [2022-07-21 09:57:53,982 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-07-21 09:57:53,982 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-07-21 09:57:54,118 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-07-21 09:57:54,145 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 8 proven. 25 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-21 09:57:54,146 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 09:57:54,352 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2022-07-21 09:57:54,438 WARN L833 $PredicateComparison]: unable to prove that (or (forall ((v_ArrVal_14166 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ttusb_dec_probe_ttusb_dec_init_usb_~dec#1.base| v_ArrVal_14166) |c_~#debug~0.base|) |c_~#debug~0.offset|) 0)) (= (select |c_old(#valid)| |c_~#debug~0.base|) 0)) is different from false [2022-07-21 09:57:54,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378424040] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:57:54,450 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 09:57:54,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 18] total 37 [2022-07-21 09:57:54,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640609086] [2022-07-21 09:57:54,450 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 09:57:54,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-07-21 09:57:54,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:57:54,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-07-21 09:57:54,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=1355, Unknown=1, NotChecked=74, Total=1560 [2022-07-21 09:57:54,453 INFO L87 Difference]: Start difference. First operand 14948 states and 21678 transitions. Second operand has 37 states, 37 states have (on average 5.8108108108108105) internal successors, (215), 28 states have internal predecessors, (215), 16 states have call successors, (40), 10 states have call predecessors, (40), 12 states have return successors, (36), 17 states have call predecessors, (36), 15 states have call successors, (36) [2022-07-21 09:58:02,573 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 09:58:37,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:58:37,541 INFO L93 Difference]: Finished difference Result 55298 states and 92671 transitions. [2022-07-21 09:58:37,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2022-07-21 09:58:37,542 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 5.8108108108108105) internal successors, (215), 28 states have internal predecessors, (215), 16 states have call successors, (40), 10 states have call predecessors, (40), 12 states have return successors, (36), 17 states have call predecessors, (36), 15 states have call successors, (36) Word has length 163 [2022-07-21 09:58:37,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:58:37,741 INFO L225 Difference]: With dead ends: 55298 [2022-07-21 09:58:37,742 INFO L226 Difference]: Without dead ends: 40398 [2022-07-21 09:58:37,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 261 SyntacticMatches, 6 SemanticMatches, 169 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 10323 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=2669, Invalid=26064, Unknown=1, NotChecked=336, Total=29070 [2022-07-21 09:58:37,811 INFO L413 NwaCegarLoop]: 1132 mSDtfsCounter, 7733 mSDsluCounter, 12788 mSDsCounter, 0 mSdLazyCounter, 36839 mSolverCounterSat, 4314 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7921 SdHoareTripleChecker+Valid, 13920 SdHoareTripleChecker+Invalid, 43847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4314 IncrementalHoareTripleChecker+Valid, 36839 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 2693 IncrementalHoareTripleChecker+Unchecked, 36.1s IncrementalHoareTripleChecker+Time [2022-07-21 09:58:37,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7921 Valid, 13920 Invalid, 43847 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4314 Valid, 36839 Invalid, 1 Unknown, 2693 Unchecked, 36.1s Time] [2022-07-21 09:58:37,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40398 states. [2022-07-21 09:58:39,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40398 to 35031. [2022-07-21 09:58:39,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35031 states, 25909 states have (on average 1.2407657570728319) internal successors, (32147), 26819 states have internal predecessors, (32147), 6055 states have call successors, (6055), 2074 states have call predecessors, (6055), 3066 states have return successors, (16476), 6302 states have call predecessors, (16476), 6051 states have call successors, (16476) [2022-07-21 09:58:40,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35031 states to 35031 states and 54678 transitions. [2022-07-21 09:58:40,013 INFO L78 Accepts]: Start accepts. Automaton has 35031 states and 54678 transitions. Word has length 163 [2022-07-21 09:58:40,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:58:40,013 INFO L495 AbstractCegarLoop]: Abstraction has 35031 states and 54678 transitions. [2022-07-21 09:58:40,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 5.8108108108108105) internal successors, (215), 28 states have internal predecessors, (215), 16 states have call successors, (40), 10 states have call predecessors, (40), 12 states have return successors, (36), 17 states have call predecessors, (36), 15 states have call successors, (36) [2022-07-21 09:58:40,013 INFO L276 IsEmpty]: Start isEmpty. Operand 35031 states and 54678 transitions. [2022-07-21 09:58:40,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-07-21 09:58:40,016 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:58:40,017 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:58:40,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-21 09:58:40,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:58:40,231 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:58:40,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:58:40,232 INFO L85 PathProgramCache]: Analyzing trace with hash -437206204, now seen corresponding path program 1 times [2022-07-21 09:58:40,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:58:40,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029457634] [2022-07-21 09:58:40,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:58:40,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:58:40,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:40,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 09:58:40,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:40,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 09:58:40,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:40,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 09:58:40,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:40,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:58:40,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:40,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:58:40,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:40,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 09:58:40,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:40,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 09:58:40,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:40,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 09:58:40,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:40,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 09:58:40,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:40,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 09:58:40,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:40,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 09:58:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:40,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 09:58:40,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:40,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 09:58:40,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:40,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 09:58:40,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:40,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 09:58:40,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:40,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:58:40,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:40,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 09:58:40,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:40,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-21 09:58:40,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:40,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-21 09:58:40,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:40,623 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-07-21 09:58:40,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:58:40,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029457634] [2022-07-21 09:58:40,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029457634] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:58:40,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:58:40,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 09:58:40,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018699800] [2022-07-21 09:58:40,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:58:40,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 09:58:40,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:58:40,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 09:58:40,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-21 09:58:40,626 INFO L87 Difference]: Start difference. First operand 35031 states and 54678 transitions. Second operand has 8 states, 8 states have (on average 13.375) internal successors, (107), 4 states have internal predecessors, (107), 3 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-21 09:58:43,666 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 09:58:49,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:58:49,430 INFO L93 Difference]: Finished difference Result 73861 states and 128367 transitions. [2022-07-21 09:58:49,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 09:58:49,431 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 4 states have internal predecessors, (107), 3 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 166 [2022-07-21 09:58:49,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:58:49,917 INFO L225 Difference]: With dead ends: 73861 [2022-07-21 09:58:49,918 INFO L226 Difference]: Without dead ends: 38878 [2022-07-21 09:58:50,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-07-21 09:58:50,032 INFO L413 NwaCegarLoop]: 781 mSDtfsCounter, 615 mSDsluCounter, 1954 mSDsCounter, 0 mSdLazyCounter, 2281 mSolverCounterSat, 242 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 2735 SdHoareTripleChecker+Invalid, 2524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 2281 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-07-21 09:58:50,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [672 Valid, 2735 Invalid, 2524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 2281 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-07-21 09:58:50,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38878 states. [2022-07-21 09:58:51,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38878 to 35152. [2022-07-21 09:58:51,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35152 states, 25990 states have (on average 1.2403616775682955) internal successors, (32237), 26900 states have internal predecessors, (32237), 6075 states have call successors, (6075), 2089 states have call predecessors, (6075), 3086 states have return successors, (16600), 6327 states have call predecessors, (16600), 6071 states have call successors, (16600) [2022-07-21 09:58:51,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35152 states to 35152 states and 54912 transitions. [2022-07-21 09:58:51,997 INFO L78 Accepts]: Start accepts. Automaton has 35152 states and 54912 transitions. Word has length 166 [2022-07-21 09:58:51,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:58:51,998 INFO L495 AbstractCegarLoop]: Abstraction has 35152 states and 54912 transitions. [2022-07-21 09:58:51,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 4 states have internal predecessors, (107), 3 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-21 09:58:51,998 INFO L276 IsEmpty]: Start isEmpty. Operand 35152 states and 54912 transitions. [2022-07-21 09:58:52,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-07-21 09:58:52,001 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:58:52,001 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:58:52,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-21 09:58:52,001 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:58:52,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:58:52,002 INFO L85 PathProgramCache]: Analyzing trace with hash -567852612, now seen corresponding path program 1 times [2022-07-21 09:58:52,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:58:52,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60282745] [2022-07-21 09:58:52,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:58:52,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:58:52,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:52,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 09:58:52,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:52,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 09:58:52,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:52,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 09:58:52,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:52,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:58:52,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:52,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:58:52,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:52,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 09:58:52,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:52,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 09:58:52,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:52,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 09:58:52,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:52,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 09:58:52,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:52,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-21 09:58:52,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:52,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 09:58:52,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:52,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-21 09:58:52,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:52,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 09:58:52,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:52,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 09:58:52,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:52,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-21 09:58:52,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:52,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:58:52,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:52,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 09:58:52,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:52,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 09:58:52,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:52,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-21 09:58:52,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:58:52,387 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-07-21 09:58:52,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:58:52,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60282745] [2022-07-21 09:58:52,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60282745] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:58:52,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:58:52,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 09:58:52,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217930024] [2022-07-21 09:58:52,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:58:52,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 09:58:52,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:58:52,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 09:58:52,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-21 09:58:52,390 INFO L87 Difference]: Start difference. First operand 35152 states and 54912 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 4 states have internal predecessors, (108), 3 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-21 09:58:55,231 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 09:59:00,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:59:00,218 INFO L93 Difference]: Finished difference Result 74052 states and 128635 transitions. [2022-07-21 09:59:00,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 09:59:00,219 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 4 states have internal predecessors, (108), 3 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 167 [2022-07-21 09:59:00,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:59:00,430 INFO L225 Difference]: With dead ends: 74052 [2022-07-21 09:59:00,430 INFO L226 Difference]: Without dead ends: 38948 [2022-07-21 09:59:00,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-07-21 09:59:00,745 INFO L413 NwaCegarLoop]: 760 mSDtfsCounter, 1022 mSDsluCounter, 1511 mSDsCounter, 0 mSdLazyCounter, 1734 mSolverCounterSat, 477 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1079 SdHoareTripleChecker+Valid, 2271 SdHoareTripleChecker+Invalid, 2212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 477 IncrementalHoareTripleChecker+Valid, 1734 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-07-21 09:59:00,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1079 Valid, 2271 Invalid, 2212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [477 Valid, 1734 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-07-21 09:59:00,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38948 states. [2022-07-21 09:59:02,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38948 to 35227. [2022-07-21 09:59:02,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35227 states, 26050 states have (on average 1.2398080614203455) internal successors, (32297), 26960 states have internal predecessors, (32297), 6075 states have call successors, (6075), 2104 states have call predecessors, (6075), 3101 states have return successors, (16600), 6327 states have call predecessors, (16600), 6071 states have call successors, (16600) [2022-07-21 09:59:03,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35227 states to 35227 states and 54972 transitions. [2022-07-21 09:59:03,093 INFO L78 Accepts]: Start accepts. Automaton has 35227 states and 54972 transitions. Word has length 167 [2022-07-21 09:59:03,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:59:03,093 INFO L495 AbstractCegarLoop]: Abstraction has 35227 states and 54972 transitions. [2022-07-21 09:59:03,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 4 states have internal predecessors, (108), 3 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2022-07-21 09:59:03,094 INFO L276 IsEmpty]: Start isEmpty. Operand 35227 states and 54972 transitions. [2022-07-21 09:59:03,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-21 09:59:03,096 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:59:03,096 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:59:03,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-21 09:59:03,096 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:59:03,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:59:03,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1043495825, now seen corresponding path program 1 times [2022-07-21 09:59:03,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:59:03,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819752719] [2022-07-21 09:59:03,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:59:03,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:59:03,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:03,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 09:59:03,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:03,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 09:59:03,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:03,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 09:59:03,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:03,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:59:03,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:03,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:59:03,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:03,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 09:59:03,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:03,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 09:59:03,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:03,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 09:59:03,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:03,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 09:59:03,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:03,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 09:59:03,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:03,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 09:59:03,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:03,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 09:59:03,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:03,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-21 09:59:03,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:03,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-21 09:59:03,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:03,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:59:03,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:03,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 09:59:03,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:03,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-21 09:59:03,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:03,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 09:59:03,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:04,005 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-07-21 09:59:04,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:59:04,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819752719] [2022-07-21 09:59:04,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819752719] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:59:04,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559911769] [2022-07-21 09:59:04,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:59:04,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:59:04,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:59:04,008 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:59:04,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-21 09:59:05,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:05,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 3166 conjuncts, 54 conjunts are in the unsatisfiable core [2022-07-21 09:59:05,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:59:05,532 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-21 09:59:06,019 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 09:59:06,043 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 09:59:06,064 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 09:59:06,130 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 09:59:06,197 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 09:59:06,252 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 09:59:06,303 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 09:59:06,356 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 09:59:06,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:59:06,476 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-07-21 09:59:06,615 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-07-21 09:59:06,640 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-07-21 09:59:06,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 09:59:06,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559911769] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:59:06,869 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 09:59:06,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17] total 36 [2022-07-21 09:59:06,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122848150] [2022-07-21 09:59:06,869 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 09:59:06,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-07-21 09:59:06,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:59:06,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-07-21 09:59:06,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1280, Unknown=10, NotChecked=0, Total=1406 [2022-07-21 09:59:06,871 INFO L87 Difference]: Start difference. First operand 35227 states and 54972 transitions. Second operand has 36 states, 36 states have (on average 5.583333333333333) internal successors, (201), 27 states have internal predecessors, (201), 16 states have call successors, (40), 10 states have call predecessors, (40), 12 states have return successors, (36), 17 states have call predecessors, (36), 16 states have call successors, (36) [2022-07-21 09:59:13,059 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 09:59:30,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:59:30,123 INFO L93 Difference]: Finished difference Result 74675 states and 120646 transitions. [2022-07-21 09:59:30,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-07-21 09:59:30,123 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 5.583333333333333) internal successors, (201), 27 states have internal predecessors, (201), 16 states have call successors, (40), 10 states have call predecessors, (40), 12 states have return successors, (36), 17 states have call predecessors, (36), 16 states have call successors, (36) Word has length 163 [2022-07-21 09:59:30,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:59:30,321 INFO L225 Difference]: With dead ends: 74675 [2022-07-21 09:59:30,321 INFO L226 Difference]: Without dead ends: 39613 [2022-07-21 09:59:30,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 234 SyntacticMatches, 5 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1445 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=556, Invalid=4975, Unknown=19, NotChecked=0, Total=5550 [2022-07-21 09:59:30,438 INFO L413 NwaCegarLoop]: 942 mSDtfsCounter, 3205 mSDsluCounter, 8997 mSDsCounter, 0 mSdLazyCounter, 15045 mSolverCounterSat, 1398 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3321 SdHoareTripleChecker+Valid, 9939 SdHoareTripleChecker+Invalid, 17318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1398 IncrementalHoareTripleChecker+Valid, 15045 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 874 IncrementalHoareTripleChecker+Unchecked, 19.7s IncrementalHoareTripleChecker+Time [2022-07-21 09:59:30,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3321 Valid, 9939 Invalid, 17318 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1398 Valid, 15045 Invalid, 1 Unknown, 874 Unchecked, 19.7s Time] [2022-07-21 09:59:30,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39613 states. [2022-07-21 09:59:32,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39613 to 35615. [2022-07-21 09:59:32,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35615 states, 26308 states have (on average 1.238140489584917) internal successors, (32573), 27248 states have internal predecessors, (32573), 6097 states have call successors, (6097), 2158 states have call predecessors, (6097), 3209 states have return successors, (16697), 6373 states have call predecessors, (16697), 6093 states have call successors, (16697) [2022-07-21 09:59:32,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35615 states to 35615 states and 55367 transitions. [2022-07-21 09:59:32,745 INFO L78 Accepts]: Start accepts. Automaton has 35615 states and 55367 transitions. Word has length 163 [2022-07-21 09:59:32,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:59:32,746 INFO L495 AbstractCegarLoop]: Abstraction has 35615 states and 55367 transitions. [2022-07-21 09:59:32,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 5.583333333333333) internal successors, (201), 27 states have internal predecessors, (201), 16 states have call successors, (40), 10 states have call predecessors, (40), 12 states have return successors, (36), 17 states have call predecessors, (36), 16 states have call successors, (36) [2022-07-21 09:59:32,746 INFO L276 IsEmpty]: Start isEmpty. Operand 35615 states and 55367 transitions. [2022-07-21 09:59:32,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-07-21 09:59:32,749 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:59:32,750 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:59:32,784 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-21 09:59:32,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-07-21 09:59:32,972 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:59:32,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:59:32,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1861779194, now seen corresponding path program 1 times [2022-07-21 09:59:32,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:59:32,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855319864] [2022-07-21 09:59:32,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:59:32,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:59:33,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:33,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 09:59:33,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:33,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 09:59:33,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:33,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 09:59:33,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:34,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:59:34,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:34,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 09:59:34,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:34,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 09:59:34,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:34,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 09:59:34,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:34,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 09:59:34,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:34,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 09:59:34,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:34,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-21 09:59:34,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:34,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 09:59:34,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:34,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-21 09:59:34,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:34,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 09:59:34,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:34,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 09:59:34,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:34,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-21 09:59:34,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:34,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:59:34,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:34,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-07-21 09:59:34,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:34,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 09:59:34,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:34,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-21 09:59:34,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:59:34,420 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-07-21 09:59:34,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:59:34,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855319864] [2022-07-21 09:59:34,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855319864] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:59:34,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581261686] [2022-07-21 09:59:34,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:59:34,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:59:34,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:59:34,423 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:59:34,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process