./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-serial-whiteheat.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-serial-whiteheat.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 1b2bc647ca8745ce6966563490eaffac57a1a11e1ae3ccf6c64fee22f81541d7 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 15:40:07,577 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 15:40:07,598 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 15:40:07,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 15:40:07,635 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 15:40:07,638 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 15:40:07,639 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 15:40:07,644 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 15:40:07,645 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 15:40:07,648 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 15:40:07,648 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 15:40:07,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 15:40:07,649 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 15:40:07,655 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 15:40:07,656 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 15:40:07,667 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 15:40:07,668 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 15:40:07,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 15:40:07,669 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 15:40:07,670 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 15:40:07,671 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 15:40:07,672 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 15:40:07,672 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 15:40:07,673 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 15:40:07,674 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 15:40:07,674 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 15:40:07,674 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 15:40:07,675 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 15:40:07,675 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 15:40:07,676 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 15:40:07,676 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 15:40:07,676 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 15:40:07,677 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 15:40:07,677 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 15:40:07,677 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 15:40:07,678 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 15:40:07,678 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 15:40:07,678 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 15:40:07,678 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 15:40:07,679 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 15:40:07,683 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 15:40:07,683 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 15:40:07,696 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 15:40:07,699 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 15:40:07,700 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 15:40:07,700 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 15:40:07,701 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 15:40:07,701 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 15:40:07,701 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 15:40:07,701 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 15:40:07,701 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 15:40:07,702 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 15:40:07,702 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 15:40:07,702 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 15:40:07,702 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 15:40:07,703 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 15:40:07,703 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 15:40:07,703 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 15:40:07,703 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 15:40:07,703 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 15:40:07,703 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 15:40:07,703 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 15:40:07,704 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 15:40:07,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 15:40:07,704 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 15:40:07,704 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 15:40:07,704 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 15:40:07,704 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 15:40:07,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 15:40:07,705 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 15:40:07,705 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 15:40:07,705 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 15:40:07,705 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 15:40:07,705 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b2bc647ca8745ce6966563490eaffac57a1a11e1ae3ccf6c64fee22f81541d7 [2021-12-21 15:40:07,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 15:40:07,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 15:40:07,907 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 15:40:07,908 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 15:40:07,908 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 15:40:07,909 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-serial-whiteheat.ko.cil.out.i [2021-12-21 15:40:07,962 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31ecfa7a8/ba6de3c2d89d42888ac9cfdeb2cb1dd9/FLAG93de18ebe [2021-12-21 15:40:08,600 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 15:40:08,601 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-usb-serial-whiteheat.ko.cil.out.i [2021-12-21 15:40:08,633 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31ecfa7a8/ba6de3c2d89d42888ac9cfdeb2cb1dd9/FLAG93de18ebe [2021-12-21 15:40:08,703 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31ecfa7a8/ba6de3c2d89d42888ac9cfdeb2cb1dd9 [2021-12-21 15:40:08,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 15:40:08,708 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 15:40:08,711 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 15:40:08,711 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 15:40:08,714 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 15:40:08,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 03:40:08" (1/1) ... [2021-12-21 15:40:08,716 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@262c0629 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:40:08, skipping insertion in model container [2021-12-21 15:40:08,716 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 03:40:08" (1/1) ... [2021-12-21 15:40:08,722 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 15:40:08,790 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 15:40:09,664 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-usb-serial-whiteheat.ko.cil.out.i[223543,223556] [2021-12-21 15:40:09,719 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 15:40:09,755 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 15:40:09,946 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-usb-serial-whiteheat.ko.cil.out.i[223543,223556] [2021-12-21 15:40:09,965 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 15:40:10,011 INFO L208 MainTranslator]: Completed translation [2021-12-21 15:40:10,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:40:10 WrapperNode [2021-12-21 15:40:10,013 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 15:40:10,014 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 15:40:10,015 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 15:40:10,015 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 15:40:10,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:40:10" (1/1) ... [2021-12-21 15:40:10,070 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:40:10" (1/1) ... [2021-12-21 15:40:10,176 INFO L137 Inliner]: procedures = 167, calls = 1419, calls flagged for inlining = 71, calls inlined = 71, statements flattened = 4336 [2021-12-21 15:40:10,177 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 15:40:10,178 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 15:40:10,178 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 15:40:10,178 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 15:40:10,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:40:10" (1/1) ... [2021-12-21 15:40:10,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:40:10" (1/1) ... [2021-12-21 15:40:10,205 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:40:10" (1/1) ... [2021-12-21 15:40:10,206 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:40:10" (1/1) ... [2021-12-21 15:40:10,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:40:10" (1/1) ... [2021-12-21 15:40:10,314 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:40:10" (1/1) ... [2021-12-21 15:40:10,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:40:10" (1/1) ... [2021-12-21 15:40:10,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 15:40:10,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 15:40:10,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 15:40:10,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 15:40:10,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:40:10" (1/1) ... [2021-12-21 15:40:10,370 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 15:40:10,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:40:10,390 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 15:40:10,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 15:40:10,422 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-21 15:40:10,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-21 15:40:10,422 INFO L130 BoogieDeclarations]: Found specification of procedure whiteheat_exit [2021-12-21 15:40:10,422 INFO L138 BoogieDeclarations]: Found implementation of procedure whiteheat_exit [2021-12-21 15:40:10,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-21 15:40:10,423 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-21 15:40:10,423 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-21 15:40:10,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-21 15:40:10,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-21 15:40:10,423 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2021-12-21 15:40:10,423 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2021-12-21 15:40:10,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 15:40:10,423 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_serial_port_data [2021-12-21 15:40:10,424 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_serial_port_data [2021-12-21 15:40:10,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-21 15:40:10,424 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-21 15:40:10,424 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_writememory [2021-12-21 15:40:10,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_writememory [2021-12-21 15:40:10,424 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-21 15:40:10,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-21 15:40:10,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 15:40:10,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 15:40:10,425 INFO L130 BoogieDeclarations]: Found specification of procedure firm_send_command [2021-12-21 15:40:10,425 INFO L138 BoogieDeclarations]: Found implementation of procedure firm_send_command [2021-12-21 15:40:10,425 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-21 15:40:10,425 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-21 15:40:10,425 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-21 15:40:10,425 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-21 15:40:10,425 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_port_data [2021-12-21 15:40:10,425 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_port_data [2021-12-21 15:40:10,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 15:40:10,426 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-21 15:40:10,426 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-21 15:40:10,426 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-12-21 15:40:10,426 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-12-21 15:40:10,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2021-12-21 15:40:10,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2021-12-21 15:40:10,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2021-12-21 15:40:10,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2021-12-21 15:40:10,427 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-21 15:40:10,427 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-21 15:40:10,427 INFO L130 BoogieDeclarations]: Found specification of procedure request_ihex_firmware [2021-12-21 15:40:10,427 INFO L138 BoogieDeclarations]: Found implementation of procedure request_ihex_firmware [2021-12-21 15:40:10,427 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_register [2021-12-21 15:40:10,427 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_register [2021-12-21 15:40:10,427 INFO L130 BoogieDeclarations]: Found specification of procedure whiteheat_attach [2021-12-21 15:40:10,428 INFO L138 BoogieDeclarations]: Found implementation of procedure whiteheat_attach [2021-12-21 15:40:10,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 15:40:10,428 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2021-12-21 15:40:10,428 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2021-12-21 15:40:10,428 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-21 15:40:10,428 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-21 15:40:10,428 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-21 15:40:10,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-21 15:40:10,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 15:40:10,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 15:40:10,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 15:40:10,429 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-21 15:40:10,429 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-21 15:40:10,429 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-21 15:40:10,429 INFO L130 BoogieDeclarations]: Found specification of procedure ihex_next_binrec [2021-12-21 15:40:10,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ihex_next_binrec [2021-12-21 15:40:10,429 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-21 15:40:10,430 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-21 15:40:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_set_reset [2021-12-21 15:40:10,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_set_reset [2021-12-21 15:40:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure urb_to_wrap [2021-12-21 15:40:10,430 INFO L138 BoogieDeclarations]: Found implementation of procedure urb_to_wrap [2021-12-21 15:40:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 15:40:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-21 15:40:10,430 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-21 15:40:10,431 INFO L130 BoogieDeclarations]: Found specification of procedure firm_setup_port [2021-12-21 15:40:10,431 INFO L138 BoogieDeclarations]: Found implementation of procedure firm_setup_port [2021-12-21 15:40:10,431 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-21 15:40:10,431 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-21 15:40:10,431 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-12-21 15:40:10,431 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-12-21 15:40:10,431 INFO L130 BoogieDeclarations]: Found specification of procedure list_first [2021-12-21 15:40:10,431 INFO L138 BoogieDeclarations]: Found implementation of procedure list_first [2021-12-21 15:40:10,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-12-21 15:40:10,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-12-21 15:40:10,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 15:40:10,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 15:40:10,432 INFO L130 BoogieDeclarations]: Found specification of procedure firm_close [2021-12-21 15:40:10,432 INFO L138 BoogieDeclarations]: Found implementation of procedure firm_close [2021-12-21 15:40:10,432 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-21 15:40:10,432 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-21 15:40:10,432 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2021-12-21 15:40:10,433 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2021-12-21 15:40:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2021-12-21 15:40:10,433 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2021-12-21 15:40:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-21 15:40:10,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-21 15:40:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-21 15:40:10,433 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-21 15:40:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure stop_command_port [2021-12-21 15:40:10,434 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_command_port [2021-12-21 15:40:10,434 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-21 15:40:10,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-21 15:40:10,434 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-21 15:40:10,434 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-21 15:40:10,434 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-21 15:40:10,434 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-21 15:40:10,434 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-21 15:40:10,434 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-21 15:40:10,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2021-12-21 15:40:10,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2021-12-21 15:40:10,435 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-21 15:40:10,435 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-21 15:40:10,435 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-12-21 15:40:10,435 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-12-21 15:40:10,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 15:40:10,435 INFO L130 BoogieDeclarations]: Found specification of procedure usb_clear_halt [2021-12-21 15:40:10,436 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_clear_halt [2021-12-21 15:40:10,436 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-12-21 15:40:10,436 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-12-21 15:40:10,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-21 15:40:10,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 15:40:10,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 15:40:10,436 INFO L130 BoogieDeclarations]: Found specification of procedure whiteheat_init [2021-12-21 15:40:10,436 INFO L138 BoogieDeclarations]: Found implementation of procedure whiteheat_init [2021-12-21 15:40:10,857 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 15:40:10,859 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 15:40:11,234 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-21 15:40:11,372 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume !false; [2021-12-21 15:40:11,372 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##7: assume false; [2021-12-21 15:40:11,388 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-21 15:40:11,497 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##35: assume !false; [2021-12-21 15:40:11,497 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##34: assume false; [2021-12-21 15:40:11,578 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2021-12-21 15:40:11,748 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-21 15:40:11,757 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-21 15:40:12,666 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##395: assume !false; [2021-12-21 15:40:12,666 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##394: assume false; [2021-12-21 15:40:12,667 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##54: assume !false; [2021-12-21 15:40:12,667 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##53: assume false; [2021-12-21 15:40:12,735 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 15:40:12,756 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 15:40:12,756 INFO L299 CfgBuilder]: Removed 94 assume(true) statements. [2021-12-21 15:40:12,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 03:40:12 BoogieIcfgContainer [2021-12-21 15:40:12,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 15:40:12,760 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 15:40:12,760 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 15:40:12,763 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 15:40:12,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 03:40:08" (1/3) ... [2021-12-21 15:40:12,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56e8fccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 03:40:12, skipping insertion in model container [2021-12-21 15:40:12,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 03:40:10" (2/3) ... [2021-12-21 15:40:12,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56e8fccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 03:40:12, skipping insertion in model container [2021-12-21 15:40:12,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 03:40:12" (3/3) ... [2021-12-21 15:40:12,767 INFO L111 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-usb-serial-whiteheat.ko.cil.out.i [2021-12-21 15:40:12,770 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 15:40:12,771 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 15:40:12,807 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 15:40:12,811 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 15:40:12,812 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 15:40:12,845 INFO L276 IsEmpty]: Start isEmpty. Operand has 1103 states, 793 states have (on average 1.4779319041614123) internal successors, (1172), 818 states have internal predecessors, (1172), 257 states have call successors, (257), 52 states have call predecessors, (257), 51 states have return successors, (256), 253 states have call predecessors, (256), 256 states have call successors, (256) [2021-12-21 15:40:12,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-21 15:40:12,849 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 15:40:12,849 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:40:12,850 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:40:12,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:40:12,856 INFO L85 PathProgramCache]: Analyzing trace with hash 400159319, now seen corresponding path program 1 times [2021-12-21 15:40:12,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:40:12,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800152558] [2021-12-21 15:40:12,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:40:12,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:40:13,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:13,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 15:40:13,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:13,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:13,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:13,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:40:13,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:40:13,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800152558] [2021-12-21 15:40:13,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800152558] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:40:13,367 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:40:13,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 15:40:13,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604578286] [2021-12-21 15:40:13,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:40:13,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 15:40:13,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:40:13,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 15:40:13,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 15:40:13,399 INFO L87 Difference]: Start difference. First operand has 1103 states, 793 states have (on average 1.4779319041614123) internal successors, (1172), 818 states have internal predecessors, (1172), 257 states have call successors, (257), 52 states have call predecessors, (257), 51 states have return successors, (256), 253 states have call predecessors, (256), 256 states have call successors, (256) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-21 15:40:13,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 15:40:13,668 INFO L93 Difference]: Finished difference Result 3245 states and 5061 transitions. [2021-12-21 15:40:13,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 15:40:13,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2021-12-21 15:40:13,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 15:40:13,712 INFO L225 Difference]: With dead ends: 3245 [2021-12-21 15:40:13,712 INFO L226 Difference]: Without dead ends: 2158 [2021-12-21 15:40:13,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 15:40:13,737 INFO L933 BasicCegarLoop]: 1768 mSDtfsCounter, 1475 mSDsluCounter, 1448 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1475 SdHoareTripleChecker+Valid, 3216 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 15:40:13,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1475 Valid, 3216 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 15:40:13,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2158 states. [2021-12-21 15:40:13,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2158 to 2155. [2021-12-21 15:40:13,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2155 states, 1552 states have (on average 1.2345360824742269) internal successors, (1916), 1587 states have internal predecessors, (1916), 504 states have call successors, (504), 99 states have call predecessors, (504), 98 states have return successors, (505), 495 states have call predecessors, (505), 501 states have call successors, (505) [2021-12-21 15:40:13,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2155 states to 2155 states and 2925 transitions. [2021-12-21 15:40:13,977 INFO L78 Accepts]: Start accepts. Automaton has 2155 states and 2925 transitions. Word has length 20 [2021-12-21 15:40:13,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 15:40:13,978 INFO L470 AbstractCegarLoop]: Abstraction has 2155 states and 2925 transitions. [2021-12-21 15:40:13,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-21 15:40:13,978 INFO L276 IsEmpty]: Start isEmpty. Operand 2155 states and 2925 transitions. [2021-12-21 15:40:13,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-12-21 15:40:13,979 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 15:40:13,980 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:40:13,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 15:40:13,980 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:40:13,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:40:13,981 INFO L85 PathProgramCache]: Analyzing trace with hash -480450483, now seen corresponding path program 1 times [2021-12-21 15:40:13,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:40:13,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502166873] [2021-12-21 15:40:13,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:40:13,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:40:14,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:14,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 15:40:14,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:14,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:14,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:14,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 15:40:14,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:40:14,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502166873] [2021-12-21 15:40:14,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502166873] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:40:14,138 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:40:14,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 15:40:14,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366367411] [2021-12-21 15:40:14,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:40:14,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 15:40:14,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:40:14,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 15:40:14,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 15:40:14,140 INFO L87 Difference]: Start difference. First operand 2155 states and 2925 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-21 15:40:14,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 15:40:14,188 INFO L93 Difference]: Finished difference Result 2157 states and 2926 transitions. [2021-12-21 15:40:14,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 15:40:14,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2021-12-21 15:40:14,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 15:40:14,199 INFO L225 Difference]: With dead ends: 2157 [2021-12-21 15:40:14,200 INFO L226 Difference]: Without dead ends: 2144 [2021-12-21 15:40:14,204 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 15:40:14,206 INFO L933 BasicCegarLoop]: 1478 mSDtfsCounter, 1470 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1470 SdHoareTripleChecker+Valid, 1478 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 15:40:14,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1470 Valid, 1478 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 15:40:14,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2144 states. [2021-12-21 15:40:14,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2144 to 2144. [2021-12-21 15:40:14,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2144 states, 1546 states have (on average 1.2322121604139715) internal successors, (1905), 1579 states have internal predecessors, (1905), 500 states have call successors, (500), 98 states have call predecessors, (500), 97 states have return successors, (502), 492 states have call predecessors, (502), 498 states have call successors, (502) [2021-12-21 15:40:14,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2144 states to 2144 states and 2907 transitions. [2021-12-21 15:40:14,278 INFO L78 Accepts]: Start accepts. Automaton has 2144 states and 2907 transitions. Word has length 21 [2021-12-21 15:40:14,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 15:40:14,280 INFO L470 AbstractCegarLoop]: Abstraction has 2144 states and 2907 transitions. [2021-12-21 15:40:14,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-21 15:40:14,281 INFO L276 IsEmpty]: Start isEmpty. Operand 2144 states and 2907 transitions. [2021-12-21 15:40:14,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-21 15:40:14,291 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 15:40:14,291 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:40:14,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 15:40:14,292 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:40:14,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:40:14,296 INFO L85 PathProgramCache]: Analyzing trace with hash 2093592220, now seen corresponding path program 1 times [2021-12-21 15:40:14,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:40:14,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511469620] [2021-12-21 15:40:14,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:40:14,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:40:14,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:14,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 15:40:14,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:14,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:14,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:14,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-21 15:40:14,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:14,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:14,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:14,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 15:40:14,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:14,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:14,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:14,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-21 15:40:14,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:14,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-21 15:40:14,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:14,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-21 15:40:14,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:14,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-21 15:40:14,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:14,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-21 15:40:14,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:14,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-21 15:40:14,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:14,763 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-21 15:40:14,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:40:14,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511469620] [2021-12-21 15:40:14,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511469620] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:40:14,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:40:14,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-21 15:40:14,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223434072] [2021-12-21 15:40:14,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:40:14,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-21 15:40:14,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:40:14,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-21 15:40:14,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-21 15:40:14,766 INFO L87 Difference]: Start difference. First operand 2144 states and 2907 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-21 15:40:16,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 15:40:16,475 INFO L93 Difference]: Finished difference Result 4323 states and 5890 transitions. [2021-12-21 15:40:16,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 15:40:16,476 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 105 [2021-12-21 15:40:16,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 15:40:16,486 INFO L225 Difference]: With dead ends: 4323 [2021-12-21 15:40:16,486 INFO L226 Difference]: Without dead ends: 2196 [2021-12-21 15:40:16,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-12-21 15:40:16,493 INFO L933 BasicCegarLoop]: 1432 mSDtfsCounter, 319 mSDsluCounter, 6810 mSDsCounter, 0 mSdLazyCounter, 1311 mSolverCounterSat, 543 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 8242 SdHoareTripleChecker+Invalid, 1854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 543 IncrementalHoareTripleChecker+Valid, 1311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-21 15:40:16,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [331 Valid, 8242 Invalid, 1854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [543 Valid, 1311 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-21 15:40:16,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2196 states. [2021-12-21 15:40:16,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2196 to 2147. [2021-12-21 15:40:16,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2147 states, 1549 states have (on average 1.2304712717882504) internal successors, (1906), 1581 states have internal predecessors, (1906), 498 states have call successors, (498), 97 states have call predecessors, (498), 99 states have return successors, (507), 492 states have call predecessors, (507), 496 states have call successors, (507) [2021-12-21 15:40:16,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2147 states to 2147 states and 2911 transitions. [2021-12-21 15:40:16,598 INFO L78 Accepts]: Start accepts. Automaton has 2147 states and 2911 transitions. Word has length 105 [2021-12-21 15:40:16,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 15:40:16,598 INFO L470 AbstractCegarLoop]: Abstraction has 2147 states and 2911 transitions. [2021-12-21 15:40:16,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-21 15:40:16,599 INFO L276 IsEmpty]: Start isEmpty. Operand 2147 states and 2911 transitions. [2021-12-21 15:40:16,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-21 15:40:16,602 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 15:40:16,602 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-21 15:40:16,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 15:40:16,602 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:40:16,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:40:16,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1823336330, now seen corresponding path program 1 times [2021-12-21 15:40:16,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:40:16,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939527393] [2021-12-21 15:40:16,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:40:16,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:40:16,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:16,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 15:40:16,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:16,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:16,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:16,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-21 15:40:16,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:16,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 15:40:16,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:16,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:16,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:16,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 15:40:16,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:16,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:16,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:16,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-21 15:40:16,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:16,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-21 15:40:16,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:16,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 15:40:16,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:16,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-21 15:40:16,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:16,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-21 15:40:16,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:16,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-21 15:40:16,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:16,814 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-21 15:40:16,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:40:16,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939527393] [2021-12-21 15:40:16,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939527393] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:40:16,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:40:16,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 15:40:16,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763398415] [2021-12-21 15:40:16,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:40:16,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 15:40:16,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:40:16,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 15:40:16,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-21 15:40:16,816 INFO L87 Difference]: Start difference. First operand 2147 states and 2911 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-21 15:40:18,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 15:40:18,246 INFO L93 Difference]: Finished difference Result 5104 states and 7042 transitions. [2021-12-21 15:40:18,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 15:40:18,246 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 113 [2021-12-21 15:40:18,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 15:40:18,267 INFO L225 Difference]: With dead ends: 5104 [2021-12-21 15:40:18,267 INFO L226 Difference]: Without dead ends: 2977 [2021-12-21 15:40:18,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-21 15:40:18,281 INFO L933 BasicCegarLoop]: 1628 mSDtfsCounter, 767 mSDsluCounter, 2082 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 716 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 919 SdHoareTripleChecker+Valid, 3710 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 716 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-21 15:40:18,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [919 Valid, 3710 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [716 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-21 15:40:18,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2977 states. [2021-12-21 15:40:18,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2977 to 2924. [2021-12-21 15:40:18,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2924 states, 2122 states have (on average 1.2398680490103675) internal successors, (2631), 2168 states have internal predecessors, (2631), 702 states have call successors, (702), 97 states have call predecessors, (702), 99 states have return successors, (713), 690 states have call predecessors, (713), 700 states have call successors, (713) [2021-12-21 15:40:18,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2924 states to 2924 states and 4046 transitions. [2021-12-21 15:40:18,371 INFO L78 Accepts]: Start accepts. Automaton has 2924 states and 4046 transitions. Word has length 113 [2021-12-21 15:40:18,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 15:40:18,373 INFO L470 AbstractCegarLoop]: Abstraction has 2924 states and 4046 transitions. [2021-12-21 15:40:18,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-21 15:40:18,373 INFO L276 IsEmpty]: Start isEmpty. Operand 2924 states and 4046 transitions. [2021-12-21 15:40:18,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-12-21 15:40:18,382 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 15:40:18,383 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:40:18,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 15:40:18,383 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:40:18,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:40:18,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1397585658, now seen corresponding path program 1 times [2021-12-21 15:40:18,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:40:18,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485878359] [2021-12-21 15:40:18,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:40:18,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:40:18,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:18,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 15:40:18,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:18,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:18,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:18,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-21 15:40:18,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:18,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 15:40:18,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:18,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-21 15:40:18,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:18,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-21 15:40:18,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:18,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-21 15:40:18,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:18,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 15:40:18,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:18,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-21 15:40:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:18,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:18,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:18,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-21 15:40:18,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:18,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:18,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:18,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-21 15:40:18,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:18,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-21 15:40:18,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:18,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-21 15:40:18,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:18,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-21 15:40:18,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:18,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-21 15:40:18,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:18,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-21 15:40:18,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:18,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:18,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:18,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-21 15:40:18,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:18,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-21 15:40:18,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:18,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-21 15:40:18,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:18,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-21 15:40:18,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:18,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-21 15:40:18,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:18,749 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-12-21 15:40:18,749 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:40:18,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485878359] [2021-12-21 15:40:18,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485878359] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:40:18,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:40:18,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 15:40:18,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689971988] [2021-12-21 15:40:18,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:40:18,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 15:40:18,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:40:18,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 15:40:18,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-21 15:40:18,752 INFO L87 Difference]: Start difference. First operand 2924 states and 4046 transitions. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 5 states have internal predecessors, (119), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-12-21 15:40:20,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 15:40:20,895 INFO L93 Difference]: Finished difference Result 11271 states and 16068 transitions. [2021-12-21 15:40:20,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 15:40:20,896 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 5 states have internal predecessors, (119), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 199 [2021-12-21 15:40:20,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 15:40:20,940 INFO L225 Difference]: With dead ends: 11271 [2021-12-21 15:40:20,940 INFO L226 Difference]: Without dead ends: 8368 [2021-12-21 15:40:20,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-12-21 15:40:20,959 INFO L933 BasicCegarLoop]: 3320 mSDtfsCounter, 2120 mSDsluCounter, 8518 mSDsCounter, 0 mSdLazyCounter, 1190 mSolverCounterSat, 1353 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2294 SdHoareTripleChecker+Valid, 11838 SdHoareTripleChecker+Invalid, 2543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1353 IncrementalHoareTripleChecker+Valid, 1190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-21 15:40:20,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2294 Valid, 11838 Invalid, 2543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1353 Valid, 1190 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-21 15:40:20,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8368 states. [2021-12-21 15:40:21,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8368 to 2932. [2021-12-21 15:40:21,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2932 states, 2128 states have (on average 1.2391917293233083) internal successors, (2637), 2174 states have internal predecessors, (2637), 704 states have call successors, (704), 97 states have call predecessors, (704), 99 states have return successors, (715), 692 states have call predecessors, (715), 702 states have call successors, (715) [2021-12-21 15:40:21,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2932 states to 2932 states and 4056 transitions. [2021-12-21 15:40:21,148 INFO L78 Accepts]: Start accepts. Automaton has 2932 states and 4056 transitions. Word has length 199 [2021-12-21 15:40:21,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 15:40:21,148 INFO L470 AbstractCegarLoop]: Abstraction has 2932 states and 4056 transitions. [2021-12-21 15:40:21,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 5 states have internal predecessors, (119), 3 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-12-21 15:40:21,149 INFO L276 IsEmpty]: Start isEmpty. Operand 2932 states and 4056 transitions. [2021-12-21 15:40:21,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-12-21 15:40:21,154 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 15:40:21,154 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2021-12-21 15:40:21,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 15:40:21,154 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:40:21,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:40:21,155 INFO L85 PathProgramCache]: Analyzing trace with hash 2077317740, now seen corresponding path program 1 times [2021-12-21 15:40:21,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:40:21,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312684019] [2021-12-21 15:40:21,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:40:21,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:40:21,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:21,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 15:40:21,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:21,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:21,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:21,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-21 15:40:21,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:21,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 15:40:21,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:21,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-21 15:40:21,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:21,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:21,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:21,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-21 15:40:21,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:21,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:21,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:21,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 15:40:21,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:21,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-21 15:40:21,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:21,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-21 15:40:21,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:21,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-21 15:40:21,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:21,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-21 15:40:21,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:21,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-21 15:40:21,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:21,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:21,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:21,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-21 15:40:21,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:21,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-21 15:40:21,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:21,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-21 15:40:21,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:21,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-21 15:40:21,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:21,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-21 15:40:21,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:21,466 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-21 15:40:21,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:40:21,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312684019] [2021-12-21 15:40:21,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312684019] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 15:40:21,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549212554] [2021-12-21 15:40:21,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:40:21,467 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:40:21,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:40:21,468 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 15:40:21,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-21 15:40:22,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:22,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 3323 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-21 15:40:22,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 15:40:22,618 INFO L387 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 25 treesize of output 13 [2021-12-21 15:40:22,693 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-12-21 15:40:22,694 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 15:40:22,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1549212554] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:40:22,694 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 15:40:22,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2021-12-21 15:40:22,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756011481] [2021-12-21 15:40:22,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:40:22,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 15:40:22,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:40:22,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 15:40:22,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2021-12-21 15:40:22,695 INFO L87 Difference]: Start difference. First operand 2932 states and 4056 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2021-12-21 15:40:23,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 15:40:23,594 INFO L93 Difference]: Finished difference Result 6089 states and 8464 transitions. [2021-12-21 15:40:23,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-21 15:40:23,595 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 155 [2021-12-21 15:40:23,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 15:40:23,613 INFO L225 Difference]: With dead ends: 6089 [2021-12-21 15:40:23,627 INFO L226 Difference]: Without dead ends: 3178 [2021-12-21 15:40:23,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 188 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-12-21 15:40:23,637 INFO L933 BasicCegarLoop]: 1513 mSDtfsCounter, 81 mSDsluCounter, 6910 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 8423 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 178 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-21 15:40:23,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 8423 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 465 Invalid, 0 Unknown, 178 Unchecked, 0.8s Time] [2021-12-21 15:40:23,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3178 states. [2021-12-21 15:40:23,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3178 to 3143. [2021-12-21 15:40:23,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3143 states, 2264 states have (on average 1.2354240282685511) internal successors, (2797), 2321 states have internal predecessors, (2797), 774 states have call successors, (774), 101 states have call predecessors, (774), 104 states have return successors, (792), 762 states have call predecessors, (792), 772 states have call successors, (792) [2021-12-21 15:40:23,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3143 states to 3143 states and 4363 transitions. [2021-12-21 15:40:23,740 INFO L78 Accepts]: Start accepts. Automaton has 3143 states and 4363 transitions. Word has length 155 [2021-12-21 15:40:23,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 15:40:23,740 INFO L470 AbstractCegarLoop]: Abstraction has 3143 states and 4363 transitions. [2021-12-21 15:40:23,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2021-12-21 15:40:23,740 INFO L276 IsEmpty]: Start isEmpty. Operand 3143 states and 4363 transitions. [2021-12-21 15:40:23,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-12-21 15:40:23,744 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 15:40:23,745 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:40:23,769 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-21 15:40:23,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-12-21 15:40:23,967 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:40:23,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:40:23,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1933803141, now seen corresponding path program 1 times [2021-12-21 15:40:23,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:40:23,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891774800] [2021-12-21 15:40:23,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:40:23,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:40:24,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:24,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 15:40:24,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:24,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:24,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:24,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-21 15:40:24,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:24,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 15:40:24,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:24,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-21 15:40:24,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:24,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 15:40:24,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:24,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-21 15:40:24,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:24,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-21 15:40:24,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:24,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-21 15:40:24,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:24,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-21 15:40:24,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:24,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:24,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:24,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 15:40:24,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:24,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:24,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:24,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-21 15:40:24,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:24,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-21 15:40:24,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:24,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-21 15:40:24,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:24,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-21 15:40:24,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:24,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-21 15:40:24,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:24,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-21 15:40:24,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:24,228 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-21 15:40:24,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:40:24,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891774800] [2021-12-21 15:40:24,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891774800] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 15:40:24,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612863847] [2021-12-21 15:40:24,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:40:24,228 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:40:24,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:40:24,229 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 15:40:24,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-21 15:40:25,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:25,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 3284 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-21 15:40:25,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 15:40:25,297 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-21 15:40:25,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 15:40:25,588 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-21 15:40:25,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [612863847] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 15:40:25,588 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 15:40:25,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 8 [2021-12-21 15:40:25,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137525176] [2021-12-21 15:40:25,589 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 15:40:25,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-21 15:40:25,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:40:25,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-21 15:40:25,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-21 15:40:25,595 INFO L87 Difference]: Start difference. First operand 3143 states and 4363 transitions. Second operand has 8 states, 8 states have (on average 20.875) internal successors, (167), 5 states have internal predecessors, (167), 4 states have call successors, (43), 5 states have call predecessors, (43), 2 states have return successors, (35), 4 states have call predecessors, (35), 4 states have call successors, (35) [2021-12-21 15:40:27,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 15:40:27,784 INFO L93 Difference]: Finished difference Result 7894 states and 11138 transitions. [2021-12-21 15:40:27,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 15:40:27,785 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.875) internal successors, (167), 5 states have internal predecessors, (167), 4 states have call successors, (43), 5 states have call predecessors, (43), 2 states have return successors, (35), 4 states have call predecessors, (35), 4 states have call successors, (35) Word has length 167 [2021-12-21 15:40:27,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 15:40:27,804 INFO L225 Difference]: With dead ends: 7894 [2021-12-21 15:40:27,804 INFO L226 Difference]: Without dead ends: 4772 [2021-12-21 15:40:27,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 367 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-21 15:40:27,816 INFO L933 BasicCegarLoop]: 1729 mSDtfsCounter, 1513 mSDsluCounter, 4434 mSDsCounter, 0 mSdLazyCounter, 1541 mSolverCounterSat, 1079 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1888 SdHoareTripleChecker+Valid, 6163 SdHoareTripleChecker+Invalid, 2620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1079 IncrementalHoareTripleChecker+Valid, 1541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-21 15:40:27,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1888 Valid, 6163 Invalid, 2620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1079 Valid, 1541 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-21 15:40:27,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4772 states. [2021-12-21 15:40:28,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4772 to 4699. [2021-12-21 15:40:28,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4699 states, 3412 states have (on average 1.2482415005861665) internal successors, (4259), 3497 states have internal predecessors, (4259), 1182 states have call successors, (1182), 101 states have call predecessors, (1182), 104 states have return successors, (1206), 1158 states have call predecessors, (1206), 1180 states have call successors, (1206) [2021-12-21 15:40:28,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4699 states to 4699 states and 6647 transitions. [2021-12-21 15:40:28,035 INFO L78 Accepts]: Start accepts. Automaton has 4699 states and 6647 transitions. Word has length 167 [2021-12-21 15:40:28,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 15:40:28,036 INFO L470 AbstractCegarLoop]: Abstraction has 4699 states and 6647 transitions. [2021-12-21 15:40:28,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.875) internal successors, (167), 5 states have internal predecessors, (167), 4 states have call successors, (43), 5 states have call predecessors, (43), 2 states have return successors, (35), 4 states have call predecessors, (35), 4 states have call successors, (35) [2021-12-21 15:40:28,037 INFO L276 IsEmpty]: Start isEmpty. Operand 4699 states and 6647 transitions. [2021-12-21 15:40:28,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-12-21 15:40:28,046 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 15:40:28,046 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:40:28,082 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-21 15:40:28,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-12-21 15:40:28,265 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:40:28,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:40:28,265 INFO L85 PathProgramCache]: Analyzing trace with hash -30579909, now seen corresponding path program 1 times [2021-12-21 15:40:28,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:40:28,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720668699] [2021-12-21 15:40:28,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:40:28,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:40:28,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:28,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 15:40:28,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:28,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:28,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:28,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-21 15:40:28,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:28,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 15:40:28,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:28,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-21 15:40:28,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:28,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:28,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:28,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-21 15:40:28,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:28,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:28,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:28,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 15:40:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:28,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-21 15:40:28,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:28,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-21 15:40:28,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:28,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-21 15:40:28,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:28,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-21 15:40:28,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:28,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-21 15:40:28,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:28,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:28,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 15:40:28,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:28,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-21 15:40:28,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:28,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-21 15:40:28,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:28,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-21 15:40:28,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:28,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-21 15:40:28,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:28,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-21 15:40:28,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:28,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-21 15:40:28,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:28,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-21 15:40:28,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:28,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-21 15:40:28,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:28,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 15:40:28,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:28,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-21 15:40:28,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:28,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-21 15:40:28,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:28,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:28,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:28,753 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-12-21 15:40:28,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:40:28,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720668699] [2021-12-21 15:40:28,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720668699] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 15:40:28,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232969196] [2021-12-21 15:40:28,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:40:28,754 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:40:28,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:40:28,755 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 15:40:28,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-21 15:40:29,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:29,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 3747 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-21 15:40:29,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 15:40:29,995 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-21 15:40:29,995 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 15:40:29,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [232969196] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:40:29,995 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 15:40:29,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2021-12-21 15:40:29,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575573024] [2021-12-21 15:40:29,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:40:29,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 15:40:29,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:40:29,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 15:40:29,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2021-12-21 15:40:29,996 INFO L87 Difference]: Start difference. First operand 4699 states and 6647 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-21 15:40:30,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 15:40:30,189 INFO L93 Difference]: Finished difference Result 9396 states and 13319 transitions. [2021-12-21 15:40:30,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 15:40:30,189 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) Word has length 204 [2021-12-21 15:40:30,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 15:40:30,209 INFO L225 Difference]: With dead ends: 9396 [2021-12-21 15:40:30,210 INFO L226 Difference]: Without dead ends: 4718 [2021-12-21 15:40:30,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2021-12-21 15:40:30,227 INFO L933 BasicCegarLoop]: 1491 mSDtfsCounter, 15 mSDsluCounter, 4438 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 5929 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 15:40:30,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 5929 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 15:40:30,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4718 states. [2021-12-21 15:40:30,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4718 to 4641. [2021-12-21 15:40:30,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4641 states, 3379 states have (on average 1.24681858538029) internal successors, (4213), 3456 states have internal predecessors, (4213), 1160 states have call successors, (1160), 100 states have call predecessors, (1160), 101 states have return successors, (1174), 1136 states have call predecessors, (1174), 1158 states have call successors, (1174) [2021-12-21 15:40:30,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4641 states to 4641 states and 6547 transitions. [2021-12-21 15:40:30,403 INFO L78 Accepts]: Start accepts. Automaton has 4641 states and 6547 transitions. Word has length 204 [2021-12-21 15:40:30,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 15:40:30,405 INFO L470 AbstractCegarLoop]: Abstraction has 4641 states and 6547 transitions. [2021-12-21 15:40:30,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-21 15:40:30,405 INFO L276 IsEmpty]: Start isEmpty. Operand 4641 states and 6547 transitions. [2021-12-21 15:40:30,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-12-21 15:40:30,413 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 15:40:30,413 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:40:30,435 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-21 15:40:30,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:40:30,628 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:40:30,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:40:30,628 INFO L85 PathProgramCache]: Analyzing trace with hash 439898, now seen corresponding path program 1 times [2021-12-21 15:40:30,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:40:30,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470419193] [2021-12-21 15:40:30,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:40:30,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:40:30,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:30,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 15:40:30,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:30,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:30,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:30,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-21 15:40:30,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:30,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 15:40:30,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:30,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-21 15:40:30,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:30,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:30,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:30,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-21 15:40:30,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:30,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:30,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:30,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 15:40:30,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:30,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-21 15:40:30,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:30,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-21 15:40:30,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:30,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-21 15:40:30,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:30,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-21 15:40:30,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:30,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-21 15:40:30,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:30,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:30,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:30,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 15:40:30,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:30,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-21 15:40:30,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:30,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-21 15:40:30,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:30,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-21 15:40:30,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:30,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-21 15:40:30,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:30,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-21 15:40:30,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:31,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-21 15:40:31,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:31,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-21 15:40:31,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:31,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-21 15:40:31,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:31,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 15:40:31,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:31,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-21 15:40:31,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:31,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-21 15:40:31,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:31,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:31,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:31,038 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-12-21 15:40:31,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:40:31,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470419193] [2021-12-21 15:40:31,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470419193] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 15:40:31,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402087952] [2021-12-21 15:40:31,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:40:31,038 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:40:31,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:40:31,039 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 15:40:31,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-21 15:40:31,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:31,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 3746 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-21 15:40:31,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 15:40:32,299 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 34 proven. 12 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2021-12-21 15:40:32,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 15:40:32,645 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2021-12-21 15:40:32,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402087952] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-21 15:40:32,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-12-21 15:40:32,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11, 6] total 17 [2021-12-21 15:40:32,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131466773] [2021-12-21 15:40:32,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:40:32,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 15:40:32,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:40:32,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 15:40:32,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-12-21 15:40:32,646 INFO L87 Difference]: Start difference. First operand 4641 states and 6547 transitions. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 5 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2021-12-21 15:40:34,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 15:40:34,475 INFO L93 Difference]: Finished difference Result 6933 states and 9800 transitions. [2021-12-21 15:40:34,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 15:40:34,476 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 5 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 204 [2021-12-21 15:40:34,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 15:40:34,493 INFO L225 Difference]: With dead ends: 6933 [2021-12-21 15:40:34,493 INFO L226 Difference]: Without dead ends: 6930 [2021-12-21 15:40:34,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 455 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-12-21 15:40:34,496 INFO L933 BasicCegarLoop]: 2830 mSDtfsCounter, 3819 mSDsluCounter, 1552 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 1017 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3819 SdHoareTripleChecker+Valid, 4382 SdHoareTripleChecker+Invalid, 2321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1017 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-21 15:40:34,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3819 Valid, 4382 Invalid, 2321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1017 Valid, 1304 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-21 15:40:34,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6930 states. [2021-12-21 15:40:34,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6930 to 6915. [2021-12-21 15:40:34,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6915 states, 5039 states have (on average 1.2478666402063903) internal successors, (6288), 5152 states have internal predecessors, (6288), 1726 states have call successors, (1726), 147 states have call predecessors, (1726), 149 states have return successors, (1768), 1690 states have call predecessors, (1768), 1724 states have call successors, (1768) [2021-12-21 15:40:34,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6915 states to 6915 states and 9782 transitions. [2021-12-21 15:40:34,713 INFO L78 Accepts]: Start accepts. Automaton has 6915 states and 9782 transitions. Word has length 204 [2021-12-21 15:40:34,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 15:40:34,713 INFO L470 AbstractCegarLoop]: Abstraction has 6915 states and 9782 transitions. [2021-12-21 15:40:34,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 5 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2021-12-21 15:40:34,714 INFO L276 IsEmpty]: Start isEmpty. Operand 6915 states and 9782 transitions. [2021-12-21 15:40:34,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2021-12-21 15:40:34,721 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 15:40:34,721 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:40:34,746 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-21 15:40:34,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:40:34,944 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:40:34,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:40:34,944 INFO L85 PathProgramCache]: Analyzing trace with hash -121286742, now seen corresponding path program 1 times [2021-12-21 15:40:34,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:40:34,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829349284] [2021-12-21 15:40:34,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:40:34,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:40:35,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:35,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 15:40:35,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:35,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:35,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:35,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-21 15:40:35,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:35,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 15:40:35,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:35,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-21 15:40:35,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:35,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 15:40:35,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:35,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-21 15:40:35,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:35,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-21 15:40:35,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:35,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-21 15:40:35,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:35,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-21 15:40:35,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:35,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-21 15:40:35,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:35,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:35,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:35,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-21 15:40:35,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:35,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:35,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:35,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-21 15:40:35,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:35,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-21 15:40:35,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:35,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-21 15:40:35,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:35,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-21 15:40:35,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:35,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-21 15:40:35,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:35,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-21 15:40:35,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:35,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:35,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:35,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-21 15:40:35,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:35,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-21 15:40:35,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:35,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-21 15:40:35,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:35,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-21 15:40:35,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:35,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-21 15:40:35,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:35,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-21 15:40:35,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:35,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-21 15:40:35,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:35,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-12-21 15:40:35,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:35,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-21 15:40:35,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:35,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 15:40:35,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:35,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-21 15:40:35,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:35,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-12-21 15:40:35,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:35,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-21 15:40:35,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:35,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-21 15:40:35,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:35,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-21 15:40:35,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:35,326 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2021-12-21 15:40:35,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:40:35,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829349284] [2021-12-21 15:40:35,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829349284] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 15:40:35,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046011214] [2021-12-21 15:40:35,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:40:35,326 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:40:35,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:40:35,340 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 15:40:35,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-21 15:40:36,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:36,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 4003 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-21 15:40:36,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 15:40:36,667 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-12-21 15:40:36,667 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 15:40:36,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046011214] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:40:36,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 15:40:36,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2021-12-21 15:40:36,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751486896] [2021-12-21 15:40:36,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:40:36,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 15:40:36,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:40:36,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 15:40:36,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-12-21 15:40:36,669 INFO L87 Difference]: Start difference. First operand 6915 states and 9782 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 3 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-12-21 15:40:36,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 15:40:36,950 INFO L93 Difference]: Finished difference Result 14051 states and 19974 transitions. [2021-12-21 15:40:36,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 15:40:36,951 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 3 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 268 [2021-12-21 15:40:36,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 15:40:36,981 INFO L225 Difference]: With dead ends: 14051 [2021-12-21 15:40:36,981 INFO L226 Difference]: Without dead ends: 7157 [2021-12-21 15:40:37,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-12-21 15:40:37,008 INFO L933 BasicCegarLoop]: 1568 mSDtfsCounter, 84 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 3118 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 15:40:37,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 3118 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 15:40:37,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7157 states. [2021-12-21 15:40:37,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7157 to 7016. [2021-12-21 15:40:37,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7016 states, 5108 states have (on average 1.2472592012529367) internal successors, (6371), 5219 states have internal predecessors, (6371), 1758 states have call successors, (1758), 147 states have call predecessors, (1758), 149 states have return successors, (1808), 1726 states have call predecessors, (1808), 1756 states have call successors, (1808) [2021-12-21 15:40:37,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7016 states to 7016 states and 9937 transitions. [2021-12-21 15:40:37,385 INFO L78 Accepts]: Start accepts. Automaton has 7016 states and 9937 transitions. Word has length 268 [2021-12-21 15:40:37,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 15:40:37,400 INFO L470 AbstractCegarLoop]: Abstraction has 7016 states and 9937 transitions. [2021-12-21 15:40:37,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 3 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-12-21 15:40:37,400 INFO L276 IsEmpty]: Start isEmpty. Operand 7016 states and 9937 transitions. [2021-12-21 15:40:37,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-12-21 15:40:37,409 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 15:40:37,409 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:40:37,435 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-21 15:40:37,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-21 15:40:37,610 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:40:37,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:40:37,611 INFO L85 PathProgramCache]: Analyzing trace with hash -305134125, now seen corresponding path program 1 times [2021-12-21 15:40:37,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:40:37,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16609936] [2021-12-21 15:40:37,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:40:37,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:40:37,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:37,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 15:40:37,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:37,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:37,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:37,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-21 15:40:37,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:37,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 15:40:37,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:37,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:37,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:37,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 15:40:37,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:37,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:37,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:37,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-21 15:40:37,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:37,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:37,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:37,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-21 15:40:37,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:37,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-21 15:40:37,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:37,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-21 15:40:37,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:37,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-21 15:40:37,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:37,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-21 15:40:37,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:37,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 15:40:37,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:37,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:37,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:37,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 15:40:37,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:37,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-21 15:40:37,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:37,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-21 15:40:37,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:37,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-21 15:40:37,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:37,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-21 15:40:37,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:37,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-21 15:40:37,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:37,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-21 15:40:37,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:37,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-21 15:40:37,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:38,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-21 15:40:38,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:38,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 15:40:38,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:38,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-21 15:40:38,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:38,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-21 15:40:38,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:38,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-21 15:40:38,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:38,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 15:40:38,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:38,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-21 15:40:38,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:38,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 15:40:38,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:38,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 15:40:38,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:38,039 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2021-12-21 15:40:38,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:40:38,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16609936] [2021-12-21 15:40:38,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16609936] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 15:40:38,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066444884] [2021-12-21 15:40:38,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:40:38,040 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:40:38,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:40:38,056 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) [2021-12-21 15:40:38,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-21 15:40:38,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:38,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 3772 conjuncts, 33 conjunts are in the unsatisfiable core [2021-12-21 15:40:38,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 15:40:39,357 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-12-21 15:40:39,357 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 15:40:39,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066444884] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:40:39,357 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 15:40:39,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 15 [2021-12-21 15:40:39,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746819044] [2021-12-21 15:40:39,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:40:39,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-21 15:40:39,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:40:39,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-21 15:40:39,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-12-21 15:40:39,359 INFO L87 Difference]: Start difference. First operand 7016 states and 9937 transitions. Second operand has 8 states, 8 states have (on average 16.625) internal successors, (133), 6 states have internal predecessors, (133), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (33), 4 states have call predecessors, (33), 2 states have call successors, (33) [2021-12-21 15:40:39,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 15:40:39,594 INFO L93 Difference]: Finished difference Result 14065 states and 20015 transitions. [2021-12-21 15:40:39,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 15:40:39,595 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.625) internal successors, (133), 6 states have internal predecessors, (133), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (33), 4 states have call predecessors, (33), 2 states have call successors, (33) Word has length 227 [2021-12-21 15:40:39,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 15:40:39,617 INFO L225 Difference]: With dead ends: 14065 [2021-12-21 15:40:39,617 INFO L226 Difference]: Without dead ends: 7070 [2021-12-21 15:40:39,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 287 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2021-12-21 15:40:39,711 INFO L933 BasicCegarLoop]: 1471 mSDtfsCounter, 5 mSDsluCounter, 8815 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 10286 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 15:40:39,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 10286 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 15:40:39,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7070 states. [2021-12-21 15:40:40,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7070 to 7040. [2021-12-21 15:40:40,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7040 states, 5126 states have (on average 1.2463909481076862) internal successors, (6389), 5237 states have internal predecessors, (6389), 1758 states have call successors, (1758), 147 states have call predecessors, (1758), 155 states have return successors, (1860), 1732 states have call predecessors, (1860), 1756 states have call successors, (1860) [2021-12-21 15:40:40,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7040 states to 7040 states and 10007 transitions. [2021-12-21 15:40:40,043 INFO L78 Accepts]: Start accepts. Automaton has 7040 states and 10007 transitions. Word has length 227 [2021-12-21 15:40:40,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 15:40:40,043 INFO L470 AbstractCegarLoop]: Abstraction has 7040 states and 10007 transitions. [2021-12-21 15:40:40,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.625) internal successors, (133), 6 states have internal predecessors, (133), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (33), 4 states have call predecessors, (33), 2 states have call successors, (33) [2021-12-21 15:40:40,043 INFO L276 IsEmpty]: Start isEmpty. Operand 7040 states and 10007 transitions. [2021-12-21 15:40:40,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2021-12-21 15:40:40,055 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 15:40:40,055 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:40:40,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-21 15:40:40,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:40:40,272 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:40:40,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:40:40,272 INFO L85 PathProgramCache]: Analyzing trace with hash -927110591, now seen corresponding path program 1 times [2021-12-21 15:40:40,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:40:40,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113513360] [2021-12-21 15:40:40,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:40:40,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:40:40,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 15:40:40,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:40,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-21 15:40:40,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 15:40:40,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-21 15:40:40,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 15:40:40,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-21 15:40:40,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-21 15:40:40,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-21 15:40:40,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-21 15:40:40,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:40,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 15:40:40,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:40,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-21 15:40:40,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:40,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-21 15:40:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-21 15:40:40,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-21 15:40:40,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-21 15:40:40,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-21 15:40:40,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 15:40:40,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:40,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 15:40:40,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-21 15:40:40,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-21 15:40:40,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-21 15:40:40,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-21 15:40:40,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-21 15:40:40,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-21 15:40:40,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-21 15:40:40,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-21 15:40:40,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 15:40:40,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-21 15:40:40,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-21 15:40:40,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-21 15:40:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 15:40:40,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-21 15:40:40,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 15:40:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 15:40:40,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:40,701 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 9 proven. 14 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2021-12-21 15:40:40,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:40:40,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113513360] [2021-12-21 15:40:40,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113513360] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 15:40:40,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910833644] [2021-12-21 15:40:40,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:40:40,702 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:40:40,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:40:40,717 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) [2021-12-21 15:40:40,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-21 15:40:41,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:41,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 4041 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-21 15:40:41,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 15:40:42,065 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2021-12-21 15:40:42,066 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 15:40:42,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910833644] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:40:42,066 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 15:40:42,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 15 [2021-12-21 15:40:42,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561274424] [2021-12-21 15:40:42,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:40:42,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 15:40:42,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:40:42,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 15:40:42,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-12-21 15:40:42,067 INFO L87 Difference]: Start difference. First operand 7040 states and 10007 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 4 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (37), 4 states have call predecessors, (37), 4 states have call successors, (37) [2021-12-21 15:40:42,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 15:40:42,648 INFO L93 Difference]: Finished difference Result 14063 states and 19997 transitions. [2021-12-21 15:40:42,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 15:40:42,648 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 4 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (37), 4 states have call predecessors, (37), 4 states have call successors, (37) Word has length 290 [2021-12-21 15:40:42,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 15:40:42,669 INFO L225 Difference]: With dead ends: 14063 [2021-12-21 15:40:42,670 INFO L226 Difference]: Without dead ends: 7044 [2021-12-21 15:40:42,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 363 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-12-21 15:40:42,688 INFO L933 BasicCegarLoop]: 2026 mSDtfsCounter, 902 mSDsluCounter, 1328 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1168 SdHoareTripleChecker+Valid, 3354 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-21 15:40:42,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1168 Valid, 3354 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-21 15:40:42,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7044 states. [2021-12-21 15:40:42,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7044 to 7040. [2021-12-21 15:40:42,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7040 states, 5126 states have (on average 1.243464689816621) internal successors, (6374), 5237 states have internal predecessors, (6374), 1758 states have call successors, (1758), 147 states have call predecessors, (1758), 155 states have return successors, (1860), 1732 states have call predecessors, (1860), 1756 states have call successors, (1860) [2021-12-21 15:40:42,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7040 states to 7040 states and 9992 transitions. [2021-12-21 15:40:42,942 INFO L78 Accepts]: Start accepts. Automaton has 7040 states and 9992 transitions. Word has length 290 [2021-12-21 15:40:42,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 15:40:42,943 INFO L470 AbstractCegarLoop]: Abstraction has 7040 states and 9992 transitions. [2021-12-21 15:40:42,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 4 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (37), 4 states have call predecessors, (37), 4 states have call successors, (37) [2021-12-21 15:40:42,943 INFO L276 IsEmpty]: Start isEmpty. Operand 7040 states and 9992 transitions. [2021-12-21 15:40:42,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-12-21 15:40:42,952 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 15:40:42,953 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:40:42,977 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-21 15:40:43,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:40:43,172 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:40:43,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:40:43,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1285308429, now seen corresponding path program 1 times [2021-12-21 15:40:43,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:40:43,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407220860] [2021-12-21 15:40:43,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:40:43,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:40:43,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:43,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 15:40:43,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:43,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:43,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:43,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-21 15:40:43,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:43,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 15:40:43,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:43,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:43,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:43,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 15:40:43,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:43,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:43,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:43,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-21 15:40:43,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:43,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:43,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:43,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-21 15:40:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:43,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-21 15:40:43,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:43,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-21 15:40:43,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:43,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-21 15:40:43,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:43,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-21 15:40:43,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:43,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 15:40:43,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:43,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:43,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:43,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 15:40:43,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:43,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-21 15:40:43,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:43,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-21 15:40:43,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:43,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-21 15:40:43,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:43,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-21 15:40:43,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:43,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-21 15:40:43,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:43,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-21 15:40:43,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:43,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-21 15:40:43,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:43,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-21 15:40:43,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:43,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 15:40:43,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:43,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-21 15:40:43,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:43,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-21 15:40:43,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:43,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-21 15:40:43,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:43,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 15:40:43,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:43,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-21 15:40:43,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:43,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 15:40:43,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:43,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 15:40:43,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:43,605 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2021-12-21 15:40:43,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:40:43,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407220860] [2021-12-21 15:40:43,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407220860] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 15:40:43,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229765045] [2021-12-21 15:40:43,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:40:43,607 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:40:43,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:40:43,608 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) [2021-12-21 15:40:43,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-21 15:40:44,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:44,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 3790 conjuncts, 33 conjunts are in the unsatisfiable core [2021-12-21 15:40:44,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 15:40:45,151 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-12-21 15:40:45,152 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 15:40:45,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [229765045] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:40:45,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-21 15:40:45,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 13 [2021-12-21 15:40:45,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180261409] [2021-12-21 15:40:45,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:40:45,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-21 15:40:45,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:40:45,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-21 15:40:45,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-12-21 15:40:45,154 INFO L87 Difference]: Start difference. First operand 7040 states and 9992 transitions. Second operand has 8 states, 8 states have (on average 16.125) internal successors, (129), 6 states have internal predecessors, (129), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (32), 4 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-21 15:40:45,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 15:40:45,492 INFO L93 Difference]: Finished difference Result 14092 states and 20055 transitions. [2021-12-21 15:40:45,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 15:40:45,493 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.125) internal successors, (129), 6 states have internal predecessors, (129), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (32), 4 states have call predecessors, (32), 2 states have call successors, (32) Word has length 227 [2021-12-21 15:40:45,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 15:40:45,517 INFO L225 Difference]: With dead ends: 14092 [2021-12-21 15:40:45,517 INFO L226 Difference]: Without dead ends: 7073 [2021-12-21 15:40:45,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 288 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-12-21 15:40:45,543 INFO L933 BasicCegarLoop]: 1466 mSDtfsCounter, 5 mSDsluCounter, 8789 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 10255 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 15:40:45,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 10255 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 15:40:45,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7073 states. [2021-12-21 15:40:45,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7073 to 7046. [2021-12-21 15:40:45,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7046 states, 5132 states have (on average 1.2431800467653935) internal successors, (6380), 5240 states have internal predecessors, (6380), 1758 states have call successors, (1758), 147 states have call predecessors, (1758), 155 states have return successors, (1860), 1735 states have call predecessors, (1860), 1756 states have call successors, (1860) [2021-12-21 15:40:45,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7046 states to 7046 states and 9998 transitions. [2021-12-21 15:40:45,804 INFO L78 Accepts]: Start accepts. Automaton has 7046 states and 9998 transitions. Word has length 227 [2021-12-21 15:40:45,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 15:40:45,804 INFO L470 AbstractCegarLoop]: Abstraction has 7046 states and 9998 transitions. [2021-12-21 15:40:45,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.125) internal successors, (129), 6 states have internal predecessors, (129), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (32), 4 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-21 15:40:45,805 INFO L276 IsEmpty]: Start isEmpty. Operand 7046 states and 9998 transitions. [2021-12-21 15:40:45,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-12-21 15:40:45,813 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 15:40:45,813 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:40:45,840 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-21 15:40:46,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-12-21 15:40:46,032 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:40:46,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:40:46,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1213312883, now seen corresponding path program 2 times [2021-12-21 15:40:46,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:40:46,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440189578] [2021-12-21 15:40:46,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:40:46,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:40:46,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:46,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 15:40:46,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:46,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:46,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:46,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-21 15:40:46,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:46,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 15:40:46,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:46,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:46,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:46,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 15:40:46,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:46,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:46,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:46,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-21 15:40:46,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:46,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:46,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:46,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-21 15:40:46,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:46,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-21 15:40:46,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:46,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-21 15:40:46,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:46,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-21 15:40:46,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:46,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-21 15:40:46,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:46,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 15:40:46,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:46,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:46,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:46,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 15:40:46,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:46,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-21 15:40:46,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:46,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-21 15:40:46,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:46,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-21 15:40:46,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:46,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-21 15:40:46,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:46,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-21 15:40:46,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:46,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-21 15:40:46,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:46,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-21 15:40:46,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:46,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-21 15:40:46,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:46,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 15:40:46,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:46,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-21 15:40:46,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:46,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-21 15:40:46,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:46,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-21 15:40:46,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:46,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 15:40:46,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:46,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-21 15:40:46,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:46,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 15:40:46,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:46,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 15:40:46,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:46,484 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-21 15:40:46,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:40:46,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440189578] [2021-12-21 15:40:46,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440189578] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:40:46,484 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:40:46,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-21 15:40:46,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197017903] [2021-12-21 15:40:46,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:40:46,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-21 15:40:46,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:40:46,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-21 15:40:46,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-12-21 15:40:46,487 INFO L87 Difference]: Start difference. First operand 7046 states and 9998 transitions. Second operand has 12 states, 12 states have (on average 10.166666666666666) internal successors, (122), 5 states have internal predecessors, (122), 3 states have call successors, (32), 7 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2021-12-21 15:40:49,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 15:40:49,228 INFO L93 Difference]: Finished difference Result 11907 states and 17006 transitions. [2021-12-21 15:40:49,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-21 15:40:49,229 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.166666666666666) internal successors, (122), 5 states have internal predecessors, (122), 3 states have call successors, (32), 7 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) Word has length 227 [2021-12-21 15:40:49,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 15:40:49,251 INFO L225 Difference]: With dead ends: 11907 [2021-12-21 15:40:49,251 INFO L226 Difference]: Without dead ends: 7144 [2021-12-21 15:40:49,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2021-12-21 15:40:49,269 INFO L933 BasicCegarLoop]: 1406 mSDtfsCounter, 348 mSDsluCounter, 9136 mSDsCounter, 0 mSdLazyCounter, 2505 mSolverCounterSat, 547 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 10542 SdHoareTripleChecker+Invalid, 3052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 547 IncrementalHoareTripleChecker+Valid, 2505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-21 15:40:49,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [368 Valid, 10542 Invalid, 3052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [547 Valid, 2505 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-21 15:40:49,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7144 states. [2021-12-21 15:40:49,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7144 to 7063. [2021-12-21 15:40:49,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7063 states, 5145 states have (on average 1.2425655976676384) internal successors, (6393), 5251 states have internal predecessors, (6393), 1758 states have call successors, (1758), 147 states have call predecessors, (1758), 159 states have return successors, (1871), 1741 states have call predecessors, (1871), 1756 states have call successors, (1871) [2021-12-21 15:40:49,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7063 states to 7063 states and 10022 transitions. [2021-12-21 15:40:49,517 INFO L78 Accepts]: Start accepts. Automaton has 7063 states and 10022 transitions. Word has length 227 [2021-12-21 15:40:49,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 15:40:49,517 INFO L470 AbstractCegarLoop]: Abstraction has 7063 states and 10022 transitions. [2021-12-21 15:40:49,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.166666666666666) internal successors, (122), 5 states have internal predecessors, (122), 3 states have call successors, (32), 7 states have call predecessors, (32), 4 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2021-12-21 15:40:49,518 INFO L276 IsEmpty]: Start isEmpty. Operand 7063 states and 10022 transitions. [2021-12-21 15:40:49,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-12-21 15:40:49,525 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 15:40:49,526 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:40:49,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-21 15:40:49,526 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:40:49,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:40:49,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1939037839, now seen corresponding path program 1 times [2021-12-21 15:40:49,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:40:49,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490538639] [2021-12-21 15:40:49,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:40:49,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:40:49,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:49,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 15:40:49,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:49,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:49,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:49,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-21 15:40:49,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:49,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 15:40:49,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:49,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:49,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:49,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 15:40:49,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:49,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:49,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:49,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-21 15:40:49,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:49,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:49,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:49,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-21 15:40:49,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:49,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-21 15:40:49,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:49,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-21 15:40:49,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:49,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-21 15:40:49,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:49,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-21 15:40:49,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:49,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 15:40:49,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:49,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:49,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:49,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 15:40:49,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:49,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-21 15:40:49,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:49,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-21 15:40:49,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:49,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-21 15:40:49,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:49,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-21 15:40:49,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:49,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-21 15:40:49,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:49,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-21 15:40:49,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:49,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-21 15:40:49,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:49,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-21 15:40:49,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:49,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 15:40:49,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:49,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-21 15:40:49,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:50,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-21 15:40:50,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:50,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-21 15:40:50,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:50,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 15:40:50,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:50,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-21 15:40:50,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:50,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 15:40:50,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:50,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 15:40:50,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:50,035 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-21 15:40:50,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:40:50,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490538639] [2021-12-21 15:40:50,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490538639] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:40:50,035 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:40:50,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-12-21 15:40:50,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906805591] [2021-12-21 15:40:50,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:40:50,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-21 15:40:50,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:40:50,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-21 15:40:50,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-12-21 15:40:50,037 INFO L87 Difference]: Start difference. First operand 7063 states and 10022 transitions. Second operand has 15 states, 15 states have (on average 8.066666666666666) internal successors, (121), 7 states have internal predecessors, (121), 3 states have call successors, (32), 7 states have call predecessors, (32), 5 states have return successors, (31), 5 states have call predecessors, (31), 3 states have call successors, (31) [2021-12-21 15:40:53,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 15:40:53,331 INFO L93 Difference]: Finished difference Result 14268 states and 20362 transitions. [2021-12-21 15:40:53,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-21 15:40:53,332 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 8.066666666666666) internal successors, (121), 7 states have internal predecessors, (121), 3 states have call successors, (32), 7 states have call predecessors, (32), 5 states have return successors, (31), 5 states have call predecessors, (31), 3 states have call successors, (31) Word has length 227 [2021-12-21 15:40:53,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 15:40:53,374 INFO L225 Difference]: With dead ends: 14268 [2021-12-21 15:40:53,374 INFO L226 Difference]: Without dead ends: 7226 [2021-12-21 15:40:53,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=396, Unknown=0, NotChecked=0, Total=462 [2021-12-21 15:40:53,417 INFO L933 BasicCegarLoop]: 1439 mSDtfsCounter, 390 mSDsluCounter, 12513 mSDsCounter, 0 mSdLazyCounter, 2868 mSolverCounterSat, 559 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 13952 SdHoareTripleChecker+Invalid, 3427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 559 IncrementalHoareTripleChecker+Valid, 2868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-12-21 15:40:53,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [428 Valid, 13952 Invalid, 3427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [559 Valid, 2868 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-12-21 15:40:53,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7226 states. [2021-12-21 15:40:53,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7226 to 7059. [2021-12-21 15:40:53,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7059 states, 5141 states have (on average 1.2413927251507488) internal successors, (6382), 5249 states have internal predecessors, (6382), 1758 states have call successors, (1758), 147 states have call predecessors, (1758), 159 states have return successors, (1871), 1739 states have call predecessors, (1871), 1756 states have call successors, (1871) [2021-12-21 15:40:53,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7059 states to 7059 states and 10011 transitions. [2021-12-21 15:40:53,702 INFO L78 Accepts]: Start accepts. Automaton has 7059 states and 10011 transitions. Word has length 227 [2021-12-21 15:40:53,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 15:40:53,703 INFO L470 AbstractCegarLoop]: Abstraction has 7059 states and 10011 transitions. [2021-12-21 15:40:53,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.066666666666666) internal successors, (121), 7 states have internal predecessors, (121), 3 states have call successors, (32), 7 states have call predecessors, (32), 5 states have return successors, (31), 5 states have call predecessors, (31), 3 states have call successors, (31) [2021-12-21 15:40:53,703 INFO L276 IsEmpty]: Start isEmpty. Operand 7059 states and 10011 transitions. [2021-12-21 15:40:53,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2021-12-21 15:40:53,713 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 15:40:53,713 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:40:53,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-21 15:40:53,714 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:40:53,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:40:53,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1848025046, now seen corresponding path program 1 times [2021-12-21 15:40:53,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:40:53,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448540937] [2021-12-21 15:40:53,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:40:53,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:40:53,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:53,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 15:40:53,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:53,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:53,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:53,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-21 15:40:53,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:53,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 15:40:53,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:53,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-21 15:40:53,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:53,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 15:40:53,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:53,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-21 15:40:53,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:53,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-21 15:40:53,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:53,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-21 15:40:53,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:53,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-21 15:40:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:53,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-21 15:40:53,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:53,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:53,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:53,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-21 15:40:53,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:53,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:53,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:53,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-21 15:40:53,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:53,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-21 15:40:53,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:53,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-21 15:40:53,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:53,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-21 15:40:53,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:53,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-21 15:40:53,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:53,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-21 15:40:53,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:53,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:53,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:53,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-21 15:40:53,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:53,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-21 15:40:53,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:53,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-21 15:40:53,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:53,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-21 15:40:53,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:53,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-21 15:40:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:53,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-21 15:40:53,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:53,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-21 15:40:53,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:53,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-21 15:40:53,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:53,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-21 15:40:53,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:53,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-21 15:40:53,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:53,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:53,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:53,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-21 15:40:53,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:53,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-12-21 15:40:53,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:53,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-12-21 15:40:53,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:53,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-12-21 15:40:53,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:54,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-12-21 15:40:54,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:54,004 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-12-21 15:40:54,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:40:54,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448540937] [2021-12-21 15:40:54,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448540937] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 15:40:54,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988901494] [2021-12-21 15:40:54,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:40:54,005 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 15:40:54,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 15:40:54,006 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) [2021-12-21 15:40:54,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-21 15:40:55,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:55,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 4172 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-21 15:40:55,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 15:40:55,639 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 27 proven. 7 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-12-21 15:40:55,639 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 15:40:56,038 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-12-21 15:40:56,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988901494] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 15:40:56,039 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 15:40:56,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 8 [2021-12-21 15:40:56,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507283642] [2021-12-21 15:40:56,039 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 15:40:56,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-21 15:40:56,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:40:56,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-21 15:40:56,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-21 15:40:56,041 INFO L87 Difference]: Start difference. First operand 7059 states and 10011 transitions. Second operand has 8 states, 8 states have (on average 25.875) internal successors, (207), 4 states have internal predecessors, (207), 3 states have call successors, (76), 6 states have call predecessors, (76), 2 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2021-12-21 15:40:59,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 15:40:59,217 INFO L93 Difference]: Finished difference Result 8884 states and 12361 transitions. [2021-12-21 15:40:59,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 15:40:59,217 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 25.875) internal successors, (207), 4 states have internal predecessors, (207), 3 states have call successors, (76), 6 states have call predecessors, (76), 2 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 294 [2021-12-21 15:40:59,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 15:40:59,240 INFO L225 Difference]: With dead ends: 8884 [2021-12-21 15:40:59,241 INFO L226 Difference]: Without dead ends: 5975 [2021-12-21 15:40:59,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 664 GetRequests, 655 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-21 15:40:59,250 INFO L933 BasicCegarLoop]: 2077 mSDtfsCounter, 1462 mSDsluCounter, 4535 mSDsCounter, 0 mSdLazyCounter, 1944 mSolverCounterSat, 1916 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1746 SdHoareTripleChecker+Valid, 6612 SdHoareTripleChecker+Invalid, 3860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1916 IncrementalHoareTripleChecker+Valid, 1944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-12-21 15:40:59,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1746 Valid, 6612 Invalid, 3860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1916 Valid, 1944 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-12-21 15:40:59,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5975 states. [2021-12-21 15:40:59,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5975 to 5892. [2021-12-21 15:40:59,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 4280 states have (on average 1.2355140186915887) internal successors, (5288), 4367 states have internal predecessors, (5288), 1452 states have call successors, (1452), 147 states have call predecessors, (1452), 159 states have return successors, (1556), 1442 states have call predecessors, (1556), 1450 states have call successors, (1556) [2021-12-21 15:40:59,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 8296 transitions. [2021-12-21 15:40:59,543 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 8296 transitions. Word has length 294 [2021-12-21 15:40:59,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 15:40:59,543 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 8296 transitions. [2021-12-21 15:40:59,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 25.875) internal successors, (207), 4 states have internal predecessors, (207), 3 states have call successors, (76), 6 states have call predecessors, (76), 2 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2021-12-21 15:40:59,544 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 8296 transitions. [2021-12-21 15:40:59,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-12-21 15:40:59,550 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 15:40:59,550 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:40:59,588 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-21 15:40:59,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-12-21 15:40:59,772 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:40:59,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:40:59,772 INFO L85 PathProgramCache]: Analyzing trace with hash 2112329021, now seen corresponding path program 1 times [2021-12-21 15:40:59,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:40:59,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761814483] [2021-12-21 15:40:59,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:40:59,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:40:59,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:59,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 15:40:59,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:59,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:40:59,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:59,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-21 15:40:59,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:40:59,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 15:40:59,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:00,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-21 15:41:00,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:00,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:41:00,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:00,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-21 15:41:00,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:00,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:41:00,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:00,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 15:41:00,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:00,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-21 15:41:00,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:00,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-21 15:41:00,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:00,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-21 15:41:00,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:00,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-21 15:41:00,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:00,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-21 15:41:00,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:00,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:41:00,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:00,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-21 15:41:00,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:00,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-21 15:41:00,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:00,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-21 15:41:00,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:00,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-21 15:41:00,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:00,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-21 15:41:00,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:00,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-21 15:41:00,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:00,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-21 15:41:00,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:00,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-21 15:41:00,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:00,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-21 15:41:00,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:00,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-21 15:41:00,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:00,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:41:00,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:00,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-21 15:41:00,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:00,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-21 15:41:00,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:00,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-21 15:41:00,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:00,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-21 15:41:00,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:00,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-21 15:41:00,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:00,224 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-12-21 15:41:00,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:41:00,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761814483] [2021-12-21 15:41:00,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761814483] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:41:00,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:41:00,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-21 15:41:00,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489461114] [2021-12-21 15:41:00,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:41:00,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-21 15:41:00,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:41:00,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-21 15:41:00,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-21 15:41:00,227 INFO L87 Difference]: Start difference. First operand 5892 states and 8296 transitions. Second operand has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 5 states have internal predecessors, (123), 3 states have call successors, (31), 6 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-12-21 15:41:02,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 15:41:02,652 INFO L93 Difference]: Finished difference Result 7606 states and 10717 transitions. [2021-12-21 15:41:02,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 15:41:02,652 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 5 states have internal predecessors, (123), 3 states have call successors, (31), 6 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 231 [2021-12-21 15:41:02,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 15:41:02,657 INFO L225 Difference]: With dead ends: 7606 [2021-12-21 15:41:02,658 INFO L226 Difference]: Without dead ends: 1735 [2021-12-21 15:41:02,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-12-21 15:41:02,672 INFO L933 BasicCegarLoop]: 1200 mSDtfsCounter, 418 mSDsluCounter, 4504 mSDsCounter, 0 mSdLazyCounter, 2017 mSolverCounterSat, 647 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 5704 SdHoareTripleChecker+Invalid, 2664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 647 IncrementalHoareTripleChecker+Valid, 2017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-21 15:41:02,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [437 Valid, 5704 Invalid, 2664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [647 Valid, 2017 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-21 15:41:02,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1735 states. [2021-12-21 15:41:02,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1735 to 1723. [2021-12-21 15:41:02,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1723 states, 1267 states have (on average 1.2430939226519337) internal successors, (1575), 1289 states have internal predecessors, (1575), 411 states have call successors, (411), 43 states have call predecessors, (411), 44 states have return successors, (416), 404 states have call predecessors, (416), 410 states have call successors, (416) [2021-12-21 15:41:02,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 2402 transitions. [2021-12-21 15:41:02,727 INFO L78 Accepts]: Start accepts. Automaton has 1723 states and 2402 transitions. Word has length 231 [2021-12-21 15:41:02,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 15:41:02,728 INFO L470 AbstractCegarLoop]: Abstraction has 1723 states and 2402 transitions. [2021-12-21 15:41:02,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 5 states have internal predecessors, (123), 3 states have call successors, (31), 6 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-12-21 15:41:02,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1723 states and 2402 transitions. [2021-12-21 15:41:02,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2021-12-21 15:41:02,740 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 15:41:02,740 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 15:41:02,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-21 15:41:02,740 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 15:41:02,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 15:41:02,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1747381424, now seen corresponding path program 1 times [2021-12-21 15:41:02,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 15:41:02,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579694461] [2021-12-21 15:41:02,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 15:41:02,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 15:41:02,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:02,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 15:41:02,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:02,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:41:02,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:02,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-21 15:41:02,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:02,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-21 15:41:02,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:02,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-21 15:41:02,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:02,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 15:41:02,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:02,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-21 15:41:02,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:02,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-21 15:41:02,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:02,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-21 15:41:02,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:02,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-21 15:41:02,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:02,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-21 15:41:02,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:02,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 15:41:02,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:02,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 15:41:02,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:02,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 15:41:02,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:02,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 15:41:02,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:02,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 15:41:02,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:02,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-21 15:41:02,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:02,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:41:03,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:03,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-21 15:41:03,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:03,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-21 15:41:03,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:03,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 15:41:03,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:03,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 15:41:03,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:03,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 15:41:03,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:03,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-21 15:41:03,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:03,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-21 15:41:03,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:03,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-21 15:41:03,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:03,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-21 15:41:03,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:03,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-21 15:41:03,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:03,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:41:03,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:03,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-21 15:41:03,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:03,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-21 15:41:03,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:03,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-12-21 15:41:03,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:03,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:41:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:03,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 15:41:03,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:03,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 15:41:03,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:03,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-21 15:41:03,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:03,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-21 15:41:03,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:03,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-21 15:41:03,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:03,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-12-21 15:41:03,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:03,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-12-21 15:41:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:03,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-12-21 15:41:03,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 15:41:03,127 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2021-12-21 15:41:03,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 15:41:03,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579694461] [2021-12-21 15:41:03,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579694461] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 15:41:03,128 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 15:41:03,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-21 15:41:03,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069414651] [2021-12-21 15:41:03,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 15:41:03,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-21 15:41:03,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 15:41:03,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-21 15:41:03,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-12-21 15:41:03,130 INFO L87 Difference]: Start difference. First operand 1723 states and 2402 transitions. Second operand has 10 states, 10 states have (on average 16.0) internal successors, (160), 4 states have internal predecessors, (160), 2 states have call successors, (38), 7 states have call predecessors, (38), 2 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36)