./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 e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-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-e19ca92 [2021-12-22 14:06:05,874 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 14:06:05,876 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 14:06:05,903 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 14:06:05,903 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 14:06:05,904 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 14:06:05,905 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 14:06:05,906 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 14:06:05,907 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 14:06:05,908 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 14:06:05,908 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 14:06:05,909 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 14:06:05,909 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 14:06:05,910 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 14:06:05,911 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 14:06:05,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 14:06:05,912 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 14:06:05,913 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 14:06:05,914 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 14:06:05,915 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 14:06:05,916 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 14:06:05,917 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 14:06:05,917 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 14:06:05,918 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 14:06:05,920 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 14:06:05,920 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 14:06:05,920 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 14:06:05,921 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 14:06:05,921 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 14:06:05,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 14:06:05,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 14:06:05,923 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 14:06:05,923 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 14:06:05,924 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 14:06:05,924 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 14:06:05,925 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 14:06:05,925 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 14:06:05,925 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 14:06:05,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 14:06:05,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 14:06:05,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 14:06:05,928 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 14:06:05,940 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 14:06:05,941 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 14:06:05,941 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 14:06:05,941 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 14:06:05,942 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 14:06:05,942 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 14:06:05,942 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 14:06:05,942 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 14:06:05,943 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 14:06:05,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 14:06:05,943 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 14:06:05,943 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 14:06:05,943 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 14:06:05,944 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 14:06:05,944 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 14:06:05,944 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 14:06:05,944 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 14:06:05,944 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 14:06:05,944 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 14:06:05,945 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 14:06:05,945 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 14:06:05,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:06:05,945 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 14:06:05,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 14:06:05,945 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 14:06:05,946 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 14:06:05,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 14:06:05,946 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 14:06:05,946 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 14:06:05,946 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 14:06:05,946 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 14:06:05,946 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b2bc647ca8745ce6966563490eaffac57a1a11e1ae3ccf6c64fee22f81541d7 [2021-12-22 14:06:06,103 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 14:06:06,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 14:06:06,130 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 14:06:06,131 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 14:06:06,132 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 14:06:06,133 INFO L432 ainManager$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 [2021-12-22 14:06:06,203 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d66001144/24f6d642a05d434ba91ed0e33789c283/FLAG650268648 [2021-12-22 14:06:06,791 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 14:06:06,792 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 [2021-12-22 14:06:06,822 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d66001144/24f6d642a05d434ba91ed0e33789c283/FLAG650268648 [2021-12-22 14:06:07,222 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d66001144/24f6d642a05d434ba91ed0e33789c283 [2021-12-22 14:06:07,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 14:06:07,225 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 14:06:07,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 14:06:07,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 14:06:07,229 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 14:06:07,229 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:06:07" (1/1) ... [2021-12-22 14:06:07,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67428e7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:06:07, skipping insertion in model container [2021-12-22 14:06:07,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:06:07" (1/1) ... [2021-12-22 14:06:07,236 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 14:06:07,301 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 14:06:08,115 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] [2021-12-22 14:06:08,160 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:06:08,184 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 14:06:08,344 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] [2021-12-22 14:06:08,350 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:06:08,394 INFO L208 MainTranslator]: Completed translation [2021-12-22 14:06:08,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:06:08 WrapperNode [2021-12-22 14:06:08,396 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 14:06:08,397 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 14:06:08,397 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 14:06:08,398 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 14:06:08,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:06:08" (1/1) ... [2021-12-22 14:06:08,475 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:06:08" (1/1) ... [2021-12-22 14:06:08,569 INFO L137 Inliner]: procedures = 167, calls = 1419, calls flagged for inlining = 71, calls inlined = 71, statements flattened = 4336 [2021-12-22 14:06:08,569 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 14:06:08,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 14:06:08,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 14:06:08,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 14:06:08,576 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:06:08" (1/1) ... [2021-12-22 14:06:08,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:06:08" (1/1) ... [2021-12-22 14:06:08,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:06:08" (1/1) ... [2021-12-22 14:06:08,594 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:06:08" (1/1) ... [2021-12-22 14:06:08,710 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:06:08" (1/1) ... [2021-12-22 14:06:08,735 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:06:08" (1/1) ... [2021-12-22 14:06:08,750 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:06:08" (1/1) ... [2021-12-22 14:06:08,769 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 14:06:08,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 14:06:08,770 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 14:06:08,770 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 14:06:08,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:06:08" (1/1) ... [2021-12-22 14:06:08,776 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:06:08,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:06:08,800 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 14:06:08,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 14:06:08,835 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-22 14:06:08,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-22 14:06:08,836 INFO L130 BoogieDeclarations]: Found specification of procedure whiteheat_exit [2021-12-22 14:06:08,836 INFO L138 BoogieDeclarations]: Found implementation of procedure whiteheat_exit [2021-12-22 14:06:08,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 14:06:08,836 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-22 14:06:08,836 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-22 14:06:08,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 14:06:08,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 14:06:08,837 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2021-12-22 14:06:08,837 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2021-12-22 14:06:08,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 14:06:08,837 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_serial_port_data [2021-12-22 14:06:08,837 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_serial_port_data [2021-12-22 14:06:08,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-22 14:06:08,837 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-22 14:06:08,838 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_writememory [2021-12-22 14:06:08,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_writememory [2021-12-22 14:06:08,838 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-22 14:06:08,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-22 14:06:08,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 14:06:08,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 14:06:08,838 INFO L130 BoogieDeclarations]: Found specification of procedure firm_send_command [2021-12-22 14:06:08,838 INFO L138 BoogieDeclarations]: Found implementation of procedure firm_send_command [2021-12-22 14:06:08,839 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-22 14:06:08,839 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-22 14:06:08,839 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 14:06:08,839 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 14:06:08,839 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_port_data [2021-12-22 14:06:08,839 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_port_data [2021-12-22 14:06:08,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 14:06:08,840 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-22 14:06:08,840 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-22 14:06:08,840 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-12-22 14:06:08,840 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-12-22 14:06:08,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2021-12-22 14:06:08,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2021-12-22 14:06:08,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2021-12-22 14:06:08,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2021-12-22 14:06:08,841 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-22 14:06:08,841 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-22 14:06:08,841 INFO L130 BoogieDeclarations]: Found specification of procedure request_ihex_firmware [2021-12-22 14:06:08,841 INFO L138 BoogieDeclarations]: Found implementation of procedure request_ihex_firmware [2021-12-22 14:06:08,841 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_register [2021-12-22 14:06:08,841 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_register [2021-12-22 14:06:08,841 INFO L130 BoogieDeclarations]: Found specification of procedure whiteheat_attach [2021-12-22 14:06:08,841 INFO L138 BoogieDeclarations]: Found implementation of procedure whiteheat_attach [2021-12-22 14:06:08,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 14:06:08,842 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2021-12-22 14:06:08,842 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2021-12-22 14:06:08,842 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-22 14:06:08,842 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-22 14:06:08,842 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-22 14:06:08,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-22 14:06:08,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 14:06:08,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 14:06:08,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 14:06:08,844 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-22 14:06:08,844 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-22 14:06:08,844 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-22 14:06:08,845 INFO L130 BoogieDeclarations]: Found specification of procedure ihex_next_binrec [2021-12-22 14:06:08,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ihex_next_binrec [2021-12-22 14:06:08,845 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-22 14:06:08,845 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-22 14:06:08,845 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_set_reset [2021-12-22 14:06:08,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_set_reset [2021-12-22 14:06:08,845 INFO L130 BoogieDeclarations]: Found specification of procedure urb_to_wrap [2021-12-22 14:06:08,845 INFO L138 BoogieDeclarations]: Found implementation of procedure urb_to_wrap [2021-12-22 14:06:08,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 14:06:08,846 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-22 14:06:08,846 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-22 14:06:08,846 INFO L130 BoogieDeclarations]: Found specification of procedure firm_setup_port [2021-12-22 14:06:08,846 INFO L138 BoogieDeclarations]: Found implementation of procedure firm_setup_port [2021-12-22 14:06:08,846 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-22 14:06:08,846 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-22 14:06:08,847 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-12-22 14:06:08,847 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-12-22 14:06:08,847 INFO L130 BoogieDeclarations]: Found specification of procedure list_first [2021-12-22 14:06:08,847 INFO L138 BoogieDeclarations]: Found implementation of procedure list_first [2021-12-22 14:06:08,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-12-22 14:06:08,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-12-22 14:06:08,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 14:06:08,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 14:06:08,847 INFO L130 BoogieDeclarations]: Found specification of procedure firm_close [2021-12-22 14:06:08,848 INFO L138 BoogieDeclarations]: Found implementation of procedure firm_close [2021-12-22 14:06:08,848 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-22 14:06:08,848 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-22 14:06:08,848 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2021-12-22 14:06:08,848 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2021-12-22 14:06:08,848 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2021-12-22 14:06:08,848 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2021-12-22 14:06:08,849 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-22 14:06:08,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-22 14:06:08,849 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-22 14:06:08,849 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-22 14:06:08,849 INFO L130 BoogieDeclarations]: Found specification of procedure stop_command_port [2021-12-22 14:06:08,850 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_command_port [2021-12-22 14:06:08,850 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-22 14:06:08,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-22 14:06:08,850 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-22 14:06:08,851 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-22 14:06:08,851 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-22 14:06:08,851 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-22 14:06:08,851 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-22 14:06:08,851 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-22 14:06:08,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2021-12-22 14:06:08,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2021-12-22 14:06:08,851 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-22 14:06:08,851 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-22 14:06:08,851 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-12-22 14:06:08,852 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-12-22 14:06:08,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 14:06:08,852 INFO L130 BoogieDeclarations]: Found specification of procedure usb_clear_halt [2021-12-22 14:06:08,852 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_clear_halt [2021-12-22 14:06:08,852 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-12-22 14:06:08,852 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-12-22 14:06:08,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 14:06:08,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 14:06:08,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 14:06:08,855 INFO L130 BoogieDeclarations]: Found specification of procedure whiteheat_init [2021-12-22 14:06:08,855 INFO L138 BoogieDeclarations]: Found implementation of procedure whiteheat_init [2021-12-22 14:06:09,294 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 14:06:09,299 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 14:06:09,525 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-22 14:06:09,653 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume !false; [2021-12-22 14:06:09,653 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##7: assume false; [2021-12-22 14:06:09,661 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-22 14:06:09,745 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##35: assume !false; [2021-12-22 14:06:09,745 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##34: assume false; [2021-12-22 14:06:09,820 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2021-12-22 14:06:09,980 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-22 14:06:09,988 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-22 14:06:10,976 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##395: assume !false; [2021-12-22 14:06:10,977 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##394: assume false; [2021-12-22 14:06:10,977 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##54: assume !false; [2021-12-22 14:06:10,977 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##53: assume false; [2021-12-22 14:06:11,008 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 14:06:11,017 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 14:06:11,017 INFO L299 CfgBuilder]: Removed 94 assume(true) statements. [2021-12-22 14:06:11,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:06:11 BoogieIcfgContainer [2021-12-22 14:06:11,019 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 14:06:11,020 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 14:06:11,021 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 14:06:11,023 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 14:06:11,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:06:07" (1/3) ... [2021-12-22 14:06:11,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dca55e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:06:11, skipping insertion in model container [2021-12-22 14:06:11,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:06:08" (2/3) ... [2021-12-22 14:06:11,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dca55e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:06:11, skipping insertion in model container [2021-12-22 14:06:11,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:06:11" (3/3) ... [2021-12-22 14:06:11,025 INFO L111 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-usb-serial-whiteheat.ko.cil.out.i [2021-12-22 14:06:11,028 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 14:06:11,028 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 14:06:11,060 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 14:06:11,065 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 14:06:11,065 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 14:06:11,089 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) [2021-12-22 14:06:11,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-22 14:06:11,093 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:06:11,093 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] [2021-12-22 14:06:11,094 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:06:11,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:06:11,097 INFO L85 PathProgramCache]: Analyzing trace with hash 400159319, now seen corresponding path program 1 times [2021-12-22 14:06:11,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:06:11,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512895040] [2021-12-22 14:06:11,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:11,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:06:11,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:11,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:06:11,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:11,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:11,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:11,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:06:11,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:06:11,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512895040] [2021-12-22 14:06:11,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512895040] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:06:11,592 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:06:11,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 14:06:11,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086453898] [2021-12-22 14:06:11,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:06:11,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 14:06:11,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:06:11,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 14:06:11,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 14:06:11,615 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) [2021-12-22 14:06:11,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:06:11,823 INFO L93 Difference]: Finished difference Result 3245 states and 5061 transitions. [2021-12-22 14:06:11,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 14:06:11,825 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 [2021-12-22 14:06:11,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:06:11,841 INFO L225 Difference]: With dead ends: 3245 [2021-12-22 14:06:11,842 INFO L226 Difference]: Without dead ends: 2158 [2021-12-22 14:06:11,850 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 [2021-12-22 14:06:11,852 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 [2021-12-22 14:06:11,853 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] [2021-12-22 14:06:11,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2158 states. [2021-12-22 14:06:11,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2158 to 2155. [2021-12-22 14:06:11,972 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) [2021-12-22 14:06:11,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2155 states to 2155 states and 2925 transitions. [2021-12-22 14:06:11,986 INFO L78 Accepts]: Start accepts. Automaton has 2155 states and 2925 transitions. Word has length 20 [2021-12-22 14:06:11,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:06:11,987 INFO L470 AbstractCegarLoop]: Abstraction has 2155 states and 2925 transitions. [2021-12-22 14:06:11,987 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) [2021-12-22 14:06:11,987 INFO L276 IsEmpty]: Start isEmpty. Operand 2155 states and 2925 transitions. [2021-12-22 14:06:11,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-12-22 14:06:11,988 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:06:11,988 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] [2021-12-22 14:06:11,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 14:06:11,989 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:06:11,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:06:11,990 INFO L85 PathProgramCache]: Analyzing trace with hash -480450483, now seen corresponding path program 1 times [2021-12-22 14:06:11,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:06:11,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020803918] [2021-12-22 14:06:11,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:11,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:06:12,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:12,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:06:12,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:12,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:12,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:12,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 14:06:12,199 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:06:12,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020803918] [2021-12-22 14:06:12,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020803918] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:06:12,199 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:06:12,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 14:06:12,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778836585] [2021-12-22 14:06:12,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:06:12,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 14:06:12,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:06:12,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 14:06:12,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 14:06:12,202 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) [2021-12-22 14:06:12,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:06:12,245 INFO L93 Difference]: Finished difference Result 2157 states and 2926 transitions. [2021-12-22 14:06:12,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 14:06:12,246 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 [2021-12-22 14:06:12,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:06:12,255 INFO L225 Difference]: With dead ends: 2157 [2021-12-22 14:06:12,255 INFO L226 Difference]: Without dead ends: 2144 [2021-12-22 14:06:12,257 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 [2021-12-22 14:06:12,258 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 [2021-12-22 14:06:12,258 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] [2021-12-22 14:06:12,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2144 states. [2021-12-22 14:06:12,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2144 to 2144. [2021-12-22 14:06:12,330 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) [2021-12-22 14:06:12,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2144 states to 2144 states and 2907 transitions. [2021-12-22 14:06:12,343 INFO L78 Accepts]: Start accepts. Automaton has 2144 states and 2907 transitions. Word has length 21 [2021-12-22 14:06:12,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:06:12,343 INFO L470 AbstractCegarLoop]: Abstraction has 2144 states and 2907 transitions. [2021-12-22 14:06:12,344 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) [2021-12-22 14:06:12,344 INFO L276 IsEmpty]: Start isEmpty. Operand 2144 states and 2907 transitions. [2021-12-22 14:06:12,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-22 14:06:12,355 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:06:12,355 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] [2021-12-22 14:06:12,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 14:06:12,356 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:06:12,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:06:12,360 INFO L85 PathProgramCache]: Analyzing trace with hash 2093592220, now seen corresponding path program 1 times [2021-12-22 14:06:12,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:06:12,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267253348] [2021-12-22 14:06:12,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:12,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:06:12,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:12,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:06:12,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:12,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:12,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:12,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 14:06:12,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:12,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:12,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:12,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:06:12,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:12,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:12,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:12,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-22 14:06:12,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:12,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-22 14:06:12,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:12,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-22 14:06:12,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:12,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 14:06:12,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:12,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-22 14:06:12,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:12,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 14:06:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:12,770 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-22 14:06:12,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:06:12,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267253348] [2021-12-22 14:06:12,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267253348] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:06:12,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:06:12,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-22 14:06:12,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704630481] [2021-12-22 14:06:12,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:06:12,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 14:06:12,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:06:12,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 14:06:12,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-22 14:06:12,773 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) [2021-12-22 14:06:14,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:06:14,541 INFO L93 Difference]: Finished difference Result 4323 states and 5890 transitions. [2021-12-22 14:06:14,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-22 14:06:14,552 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 [2021-12-22 14:06:14,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:06:14,562 INFO L225 Difference]: With dead ends: 4323 [2021-12-22 14:06:14,562 INFO L226 Difference]: Without dead ends: 2196 [2021-12-22 14:06:14,569 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 [2021-12-22 14:06:14,570 INFO L933 BasicCegarLoop]: 1430 mSDtfsCounter, 319 mSDsluCounter, 6798 mSDsCounter, 0 mSdLazyCounter, 1311 mSolverCounterSat, 543 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 8228 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 [2021-12-22 14:06:14,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [331 Valid, 8228 Invalid, 1854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [543 Valid, 1311 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-22 14:06:14,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2196 states. [2021-12-22 14:06:14,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2196 to 2147. [2021-12-22 14:06:14,656 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) [2021-12-22 14:06:14,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2147 states to 2147 states and 2911 transitions. [2021-12-22 14:06:14,665 INFO L78 Accepts]: Start accepts. Automaton has 2147 states and 2911 transitions. Word has length 105 [2021-12-22 14:06:14,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:06:14,666 INFO L470 AbstractCegarLoop]: Abstraction has 2147 states and 2911 transitions. [2021-12-22 14:06:14,666 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) [2021-12-22 14:06:14,666 INFO L276 IsEmpty]: Start isEmpty. Operand 2147 states and 2911 transitions. [2021-12-22 14:06:14,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-22 14:06:14,670 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:06:14,671 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] [2021-12-22 14:06:14,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 14:06:14,671 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:06:14,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:06:14,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1823336330, now seen corresponding path program 1 times [2021-12-22 14:06:14,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:06:14,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410812701] [2021-12-22 14:06:14,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:14,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:06:14,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:14,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:06:14,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:14,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:14,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:14,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-22 14:06:14,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:14,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:06:14,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:14,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:14,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:14,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:06:14,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:14,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:14,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:14,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-22 14:06:14,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:14,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-22 14:06:14,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:14,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 14:06:14,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:14,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-22 14:06:14,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:14,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-22 14:06:14,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:14,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-22 14:06:14,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:14,896 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-22 14:06:14,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:06:14,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410812701] [2021-12-22 14:06:14,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410812701] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:06:14,896 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:06:14,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 14:06:14,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359668592] [2021-12-22 14:06:14,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:06:14,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 14:06:14,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:06:14,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 14:06:14,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-22 14:06:14,898 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) [2021-12-22 14:06:16,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:06:16,054 INFO L93 Difference]: Finished difference Result 5104 states and 7042 transitions. [2021-12-22 14:06:16,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 14:06:16,063 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 [2021-12-22 14:06:16,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:06:16,076 INFO L225 Difference]: With dead ends: 5104 [2021-12-22 14:06:16,076 INFO L226 Difference]: Without dead ends: 2977 [2021-12-22 14:06:16,083 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 [2021-12-22 14:06:16,084 INFO L933 BasicCegarLoop]: 1627 mSDtfsCounter, 767 mSDsluCounter, 2080 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 716 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 919 SdHoareTripleChecker+Valid, 3707 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 716 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-22 14:06:16,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [919 Valid, 3707 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [716 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-22 14:06:16,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2977 states. [2021-12-22 14:06:16,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2977 to 2924. [2021-12-22 14:06:16,155 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) [2021-12-22 14:06:16,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2924 states to 2924 states and 4046 transitions. [2021-12-22 14:06:16,167 INFO L78 Accepts]: Start accepts. Automaton has 2924 states and 4046 transitions. Word has length 113 [2021-12-22 14:06:16,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:06:16,167 INFO L470 AbstractCegarLoop]: Abstraction has 2924 states and 4046 transitions. [2021-12-22 14:06:16,167 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) [2021-12-22 14:06:16,167 INFO L276 IsEmpty]: Start isEmpty. Operand 2924 states and 4046 transitions. [2021-12-22 14:06:16,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-12-22 14:06:16,173 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:06:16,173 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] [2021-12-22 14:06:16,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 14:06:16,174 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:06:16,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:06:16,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1397585658, now seen corresponding path program 1 times [2021-12-22 14:06:16,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:06:16,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135770129] [2021-12-22 14:06:16,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:16,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:06:16,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:16,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:06:16,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:16,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:16,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:16,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-22 14:06:16,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:16,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 14:06:16,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:16,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:06:16,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:16,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-22 14:06:16,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:16,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-22 14:06:16,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:16,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 14:06:16,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:16,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-22 14:06:16,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:16,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:16,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:16,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 14:06:16,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:16,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:16,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:16,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-22 14:06:16,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:16,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-22 14:06:16,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:16,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-22 14:06:16,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:16,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-22 14:06:16,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:16,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-22 14:06:16,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:16,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-22 14:06:16,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:16,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:16,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:16,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-22 14:06:16,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:16,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-22 14:06:16,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:16,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-22 14:06:16,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:16,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-22 14:06:16,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:16,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-22 14:06:16,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:16,466 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-12-22 14:06:16,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:06:16,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135770129] [2021-12-22 14:06:16,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135770129] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:06:16,467 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:06:16,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 14:06:16,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839483571] [2021-12-22 14:06:16,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:06:16,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 14:06:16,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:06:16,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 14:06:16,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-22 14:06:16,469 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) [2021-12-22 14:06:18,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:06:18,722 INFO L93 Difference]: Finished difference Result 11271 states and 16068 transitions. [2021-12-22 14:06:18,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 14:06:18,722 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 [2021-12-22 14:06:18,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:06:18,763 INFO L225 Difference]: With dead ends: 11271 [2021-12-22 14:06:18,764 INFO L226 Difference]: Without dead ends: 8368 [2021-12-22 14:06:18,780 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 [2021-12-22 14:06:18,781 INFO L933 BasicCegarLoop]: 3318 mSDtfsCounter, 2120 mSDsluCounter, 8510 mSDsCounter, 0 mSdLazyCounter, 1190 mSolverCounterSat, 1353 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2294 SdHoareTripleChecker+Valid, 11828 SdHoareTripleChecker+Invalid, 2543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1353 IncrementalHoareTripleChecker+Valid, 1190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-22 14:06:18,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2294 Valid, 11828 Invalid, 2543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1353 Valid, 1190 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-22 14:06:18,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8368 states. [2021-12-22 14:06:18,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8368 to 2932. [2021-12-22 14:06:18,959 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) [2021-12-22 14:06:18,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2932 states to 2932 states and 4056 transitions. [2021-12-22 14:06:18,971 INFO L78 Accepts]: Start accepts. Automaton has 2932 states and 4056 transitions. Word has length 199 [2021-12-22 14:06:18,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:06:18,972 INFO L470 AbstractCegarLoop]: Abstraction has 2932 states and 4056 transitions. [2021-12-22 14:06:18,972 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) [2021-12-22 14:06:18,972 INFO L276 IsEmpty]: Start isEmpty. Operand 2932 states and 4056 transitions. [2021-12-22 14:06:18,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-12-22 14:06:18,978 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:06:18,978 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] [2021-12-22 14:06:18,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-22 14:06:18,979 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:06:18,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:06:18,979 INFO L85 PathProgramCache]: Analyzing trace with hash 2077317740, now seen corresponding path program 1 times [2021-12-22 14:06:18,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:06:18,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772811768] [2021-12-22 14:06:18,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:18,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:06:19,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:19,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:06:19,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:19,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:19,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:19,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-22 14:06:19,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:19,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 14:06:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:19,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 14:06:19,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:19,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:19,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:19,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-22 14:06:19,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:19,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:19,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:19,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 14:06:19,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:19,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-22 14:06:19,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:19,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-22 14:06:19,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:19,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-22 14:06:19,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:19,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-22 14:06:19,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:19,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-22 14:06:19,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:19,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:19,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:19,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-22 14:06:19,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:19,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-22 14:06:19,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:19,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-22 14:06:19,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:19,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-22 14:06:19,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:19,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-22 14:06:19,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:19,329 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-22 14:06:19,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:06:19,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772811768] [2021-12-22 14:06:19,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772811768] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:06:19,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1088005379] [2021-12-22 14:06:19,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:19,330 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:06:19,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:06:19,331 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 14:06:19,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-22 14:06:20,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:20,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 3323 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-22 14:06:20,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:06:20,390 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 [2021-12-22 14:06:20,475 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-12-22 14:06:20,475 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 14:06:20,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1088005379] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:06:20,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 14:06:20,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2021-12-22 14:06:20,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797787974] [2021-12-22 14:06:20,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:06:20,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 14:06:20,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:06:20,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 14:06:20,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2021-12-22 14:06:20,477 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) [2021-12-22 14:06:21,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:06:21,316 INFO L93 Difference]: Finished difference Result 6089 states and 8464 transitions. [2021-12-22 14:06:21,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 14:06:21,317 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 [2021-12-22 14:06:21,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:06:21,330 INFO L225 Difference]: With dead ends: 6089 [2021-12-22 14:06:21,330 INFO L226 Difference]: Without dead ends: 3178 [2021-12-22 14:06:21,340 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 [2021-12-22 14:06:21,341 INFO L933 BasicCegarLoop]: 1513 mSDtfsCounter, 81 mSDsluCounter, 6910 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2021-12-22 14:06:21,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 8423 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 465 Invalid, 0 Unknown, 178 Unchecked, 0.7s Time] [2021-12-22 14:06:21,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3178 states. [2021-12-22 14:06:21,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3178 to 3143. [2021-12-22 14:06:21,435 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) [2021-12-22 14:06:21,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3143 states to 3143 states and 4363 transitions. [2021-12-22 14:06:21,446 INFO L78 Accepts]: Start accepts. Automaton has 3143 states and 4363 transitions. Word has length 155 [2021-12-22 14:06:21,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:06:21,446 INFO L470 AbstractCegarLoop]: Abstraction has 3143 states and 4363 transitions. [2021-12-22 14:06:21,446 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) [2021-12-22 14:06:21,447 INFO L276 IsEmpty]: Start isEmpty. Operand 3143 states and 4363 transitions. [2021-12-22 14:06:21,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-12-22 14:06:21,452 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:06:21,452 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] [2021-12-22 14:06:21,493 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-22 14:06:21,671 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 [2021-12-22 14:06:21,671 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:06:21,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:06:21,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1933803141, now seen corresponding path program 1 times [2021-12-22 14:06:21,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:06:21,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930481698] [2021-12-22 14:06:21,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:21,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:06:21,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:21,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:06:21,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:21,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:21,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:21,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-22 14:06:21,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:21,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 14:06:21,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:21,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:06:21,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:21,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:06:21,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:21,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-22 14:06:21,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:21,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-22 14:06:21,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:21,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-22 14:06:21,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:21,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-22 14:06:21,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:21,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:21,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:06:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:21,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:21,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:21,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-22 14:06:21,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:21,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-22 14:06:21,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:21,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-22 14:06:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:21,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-22 14:06:21,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:21,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-22 14:06:21,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:21,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-22 14:06:21,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:21,961 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-22 14:06:21,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:06:21,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930481698] [2021-12-22 14:06:21,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930481698] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:06:21,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022941949] [2021-12-22 14:06:21,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:21,962 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:06:21,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:06:21,964 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 14:06:22,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-22 14:06:22,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:22,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 3284 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-22 14:06:22,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:06:23,051 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-22 14:06:23,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 14:06:23,303 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-22 14:06:23,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022941949] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 14:06:23,304 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 14:06:23,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 8 [2021-12-22 14:06:23,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572522262] [2021-12-22 14:06:23,304 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 14:06:23,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-22 14:06:23,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:06:23,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-22 14:06:23,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-22 14:06:23,306 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) [2021-12-22 14:06:25,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:06:25,558 INFO L93 Difference]: Finished difference Result 7894 states and 11138 transitions. [2021-12-22 14:06:25,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 14:06:25,558 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 [2021-12-22 14:06:25,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:06:25,578 INFO L225 Difference]: With dead ends: 7894 [2021-12-22 14:06:25,578 INFO L226 Difference]: Without dead ends: 4772 [2021-12-22 14:06:25,588 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 [2021-12-22 14:06:25,589 INFO L933 BasicCegarLoop]: 1728 mSDtfsCounter, 1513 mSDsluCounter, 4430 mSDsCounter, 0 mSdLazyCounter, 1541 mSolverCounterSat, 1079 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1888 SdHoareTripleChecker+Valid, 6158 SdHoareTripleChecker+Invalid, 2620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1079 IncrementalHoareTripleChecker+Valid, 1541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-22 14:06:25,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1888 Valid, 6158 Invalid, 2620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1079 Valid, 1541 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-22 14:06:25,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4772 states. [2021-12-22 14:06:25,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4772 to 4699. [2021-12-22 14:06:25,759 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) [2021-12-22 14:06:25,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4699 states to 4699 states and 6647 transitions. [2021-12-22 14:06:25,776 INFO L78 Accepts]: Start accepts. Automaton has 4699 states and 6647 transitions. Word has length 167 [2021-12-22 14:06:25,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:06:25,778 INFO L470 AbstractCegarLoop]: Abstraction has 4699 states and 6647 transitions. [2021-12-22 14:06:25,779 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) [2021-12-22 14:06:25,779 INFO L276 IsEmpty]: Start isEmpty. Operand 4699 states and 6647 transitions. [2021-12-22 14:06:25,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-12-22 14:06:25,790 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:06:25,791 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] [2021-12-22 14:06:25,814 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-22 14:06:26,013 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 [2021-12-22 14:06:26,014 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:06:26,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:06:26,014 INFO L85 PathProgramCache]: Analyzing trace with hash -30579909, now seen corresponding path program 1 times [2021-12-22 14:06:26,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:06:26,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246611194] [2021-12-22 14:06:26,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:26,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:06:26,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:26,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:06:26,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:26,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:26,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:26,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-22 14:06:26,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:26,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 14:06:26,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:26,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 14:06:26,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:26,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:26,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:26,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-22 14:06:26,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:26,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:26,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:26,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 14:06:26,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:26,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-22 14:06:26,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:26,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-22 14:06:26,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:26,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-22 14:06:26,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:26,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-22 14:06:26,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:26,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-22 14:06:26,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:26,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:26,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:26,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-22 14:06:26,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:26,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-22 14:06:26,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:26,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-22 14:06:26,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:26,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-22 14:06:26,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:26,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-22 14:06:26,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:26,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-22 14:06:26,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:26,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-22 14:06:26,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:26,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-22 14:06:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:26,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-22 14:06:26,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:26,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:06:26,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:26,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-22 14:06:26,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:26,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-22 14:06:26,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:26,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:26,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:26,413 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-12-22 14:06:26,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:06:26,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246611194] [2021-12-22 14:06:26,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246611194] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:06:26,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025931735] [2021-12-22 14:06:26,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:26,414 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:06:26,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:06:26,415 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 14:06:26,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-22 14:06:27,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:27,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 3747 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-22 14:06:27,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:06:27,684 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-12-22 14:06:27,684 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 14:06:27,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025931735] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:06:27,685 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 14:06:27,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2021-12-22 14:06:27,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769425160] [2021-12-22 14:06:27,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:06:27,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 14:06:27,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:06:27,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 14:06:27,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2021-12-22 14:06:27,687 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) [2021-12-22 14:06:27,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:06:27,869 INFO L93 Difference]: Finished difference Result 9396 states and 13319 transitions. [2021-12-22 14:06:27,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 14:06:27,869 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 [2021-12-22 14:06:27,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:06:27,885 INFO L225 Difference]: With dead ends: 9396 [2021-12-22 14:06:27,886 INFO L226 Difference]: Without dead ends: 4718 [2021-12-22 14:06:27,906 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 [2021-12-22 14:06:27,907 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 [2021-12-22 14:06:27,907 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] [2021-12-22 14:06:27,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4718 states. [2021-12-22 14:06:28,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4718 to 4641. [2021-12-22 14:06:28,061 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) [2021-12-22 14:06:28,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4641 states to 4641 states and 6547 transitions. [2021-12-22 14:06:28,075 INFO L78 Accepts]: Start accepts. Automaton has 4641 states and 6547 transitions. Word has length 204 [2021-12-22 14:06:28,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:06:28,076 INFO L470 AbstractCegarLoop]: Abstraction has 4641 states and 6547 transitions. [2021-12-22 14:06:28,076 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) [2021-12-22 14:06:28,076 INFO L276 IsEmpty]: Start isEmpty. Operand 4641 states and 6547 transitions. [2021-12-22 14:06:28,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-12-22 14:06:28,085 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:06:28,085 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] [2021-12-22 14:06:28,121 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-22 14:06:28,305 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 [2021-12-22 14:06:28,306 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:06:28,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:06:28,306 INFO L85 PathProgramCache]: Analyzing trace with hash 439898, now seen corresponding path program 1 times [2021-12-22 14:06:28,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:06:28,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822214204] [2021-12-22 14:06:28,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:28,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:06:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:06:28,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:28,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-22 14:06:28,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 14:06:28,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 14:06:28,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:28,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-22 14:06:28,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:28,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 14:06:28,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-22 14:06:28,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-22 14:06:28,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-22 14:06:28,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-22 14:06:28,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-22 14:06:28,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:28,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-22 14:06:28,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-22 14:06:28,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-22 14:06:28,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-22 14:06:28,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-22 14:06:28,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-22 14:06:28,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-22 14:06:28,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-22 14:06:28,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-22 14:06:28,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:06:28,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-22 14:06:28,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-22 14:06:28,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:28,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:28,654 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-12-22 14:06:28,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:06:28,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822214204] [2021-12-22 14:06:28,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822214204] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:06:28,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258006501] [2021-12-22 14:06:28,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:28,655 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:06:28,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:06:28,672 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 14:06:28,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-22 14:06:29,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:29,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 3746 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-22 14:06:29,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:06:29,895 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 34 proven. 12 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2021-12-22 14:06:29,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 14:06:30,252 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2021-12-22 14:06:30,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1258006501] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-22 14:06:30,253 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-12-22 14:06:30,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11, 6] total 17 [2021-12-22 14:06:30,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183019557] [2021-12-22 14:06:30,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:06:30,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 14:06:30,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:06:30,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 14:06:30,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-12-22 14:06:30,254 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) [2021-12-22 14:06:31,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:06:31,959 INFO L93 Difference]: Finished difference Result 6933 states and 9800 transitions. [2021-12-22 14:06:31,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 14:06:31,959 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 [2021-12-22 14:06:31,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:06:31,980 INFO L225 Difference]: With dead ends: 6933 [2021-12-22 14:06:31,980 INFO L226 Difference]: Without dead ends: 6930 [2021-12-22 14:06:31,985 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 [2021-12-22 14:06:31,985 INFO L933 BasicCegarLoop]: 2830 mSDtfsCounter, 3819 mSDsluCounter, 1552 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 1017 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.5s IncrementalHoareTripleChecker+Time [2021-12-22 14:06:31,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3819 Valid, 4382 Invalid, 2321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1017 Valid, 1304 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-22 14:06:31,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6930 states. [2021-12-22 14:06:32,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6930 to 6915. [2021-12-22 14:06:32,302 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) [2021-12-22 14:06:32,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6915 states to 6915 states and 9782 transitions. [2021-12-22 14:06:32,322 INFO L78 Accepts]: Start accepts. Automaton has 6915 states and 9782 transitions. Word has length 204 [2021-12-22 14:06:32,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:06:32,322 INFO L470 AbstractCegarLoop]: Abstraction has 6915 states and 9782 transitions. [2021-12-22 14:06:32,322 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) [2021-12-22 14:06:32,323 INFO L276 IsEmpty]: Start isEmpty. Operand 6915 states and 9782 transitions. [2021-12-22 14:06:32,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2021-12-22 14:06:32,331 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:06:32,331 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] [2021-12-22 14:06:32,357 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-22 14:06:32,555 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 [2021-12-22 14:06:32,555 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:06:32,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:06:32,556 INFO L85 PathProgramCache]: Analyzing trace with hash -121286742, now seen corresponding path program 1 times [2021-12-22 14:06:32,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:06:32,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378670069] [2021-12-22 14:06:32,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:32,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:06:32,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:06:32,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:32,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-22 14:06:32,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 14:06:32,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:06:32,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:06:32,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-22 14:06:32,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-22 14:06:32,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-22 14:06:32,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-22 14:06:32,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-22 14:06:32,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:32,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-22 14:06:32,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:32,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-22 14:06:32,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-22 14:06:32,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-22 14:06:32,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-22 14:06:32,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-22 14:06:32,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-22 14:06:32,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:32,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-22 14:06:32,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-22 14:06:32,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-22 14:06:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-22 14:06:32,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-22 14:06:32,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-22 14:06:32,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-22 14:06:32,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-12-22 14:06:32,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-22 14:06:32,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:06:32,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-22 14:06:32,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-12-22 14:06:32,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-22 14:06:32,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-22 14:06:32,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-22 14:06:32,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:32,959 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2021-12-22 14:06:32,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:06:32,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378670069] [2021-12-22 14:06:32,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378670069] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:06:32,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744782907] [2021-12-22 14:06:32,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:32,959 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:06:32,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:06:32,960 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 14:06:32,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-22 14:06:33,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:33,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 4003 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-22 14:06:33,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:06:34,122 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-12-22 14:06:34,122 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 14:06:34,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744782907] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:06:34,122 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 14:06:34,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2021-12-22 14:06:34,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28722072] [2021-12-22 14:06:34,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:06:34,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 14:06:34,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:06:34,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 14:06:34,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-12-22 14:06:34,124 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) [2021-12-22 14:06:34,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:06:34,498 INFO L93 Difference]: Finished difference Result 14051 states and 19974 transitions. [2021-12-22 14:06:34,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 14:06:34,499 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 [2021-12-22 14:06:34,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:06:34,557 INFO L225 Difference]: With dead ends: 14051 [2021-12-22 14:06:34,557 INFO L226 Difference]: Without dead ends: 7157 [2021-12-22 14:06:34,589 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 [2021-12-22 14:06:34,590 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 [2021-12-22 14:06:34,591 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] [2021-12-22 14:06:34,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7157 states. [2021-12-22 14:06:34,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7157 to 7016. [2021-12-22 14:06:34,964 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) [2021-12-22 14:06:34,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7016 states to 7016 states and 9937 transitions. [2021-12-22 14:06:34,989 INFO L78 Accepts]: Start accepts. Automaton has 7016 states and 9937 transitions. Word has length 268 [2021-12-22 14:06:34,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:06:34,990 INFO L470 AbstractCegarLoop]: Abstraction has 7016 states and 9937 transitions. [2021-12-22 14:06:34,990 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) [2021-12-22 14:06:34,991 INFO L276 IsEmpty]: Start isEmpty. Operand 7016 states and 9937 transitions. [2021-12-22 14:06:35,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-12-22 14:06:35,000 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:06:35,000 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] [2021-12-22 14:06:35,042 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-22 14:06:35,215 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 [2021-12-22 14:06:35,216 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:06:35,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:06:35,216 INFO L85 PathProgramCache]: Analyzing trace with hash -305134125, now seen corresponding path program 1 times [2021-12-22 14:06:35,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:06:35,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359411122] [2021-12-22 14:06:35,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:35,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:06:35,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:06:35,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:35,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-22 14:06:35,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:06:35,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:35,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:06:35,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:35,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-22 14:06:35,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:35,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:06:35,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 14:06:35,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:06:35,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-22 14:06:35,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-22 14:06:35,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 14:06:35,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:35,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 14:06:35,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-22 14:06:35,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 14:06:35,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-22 14:06:35,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-22 14:06:35,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 14:06:35,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-22 14:06:35,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-22 14:06:35,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 14:06:35,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:06:35,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-22 14:06:35,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-22 14:06:35,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-22 14:06:35,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-22 14:06:35,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-22 14:06:35,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:06:35,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:06:35,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:35,669 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2021-12-22 14:06:35,670 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:06:35,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359411122] [2021-12-22 14:06:35,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359411122] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:06:35,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033823421] [2021-12-22 14:06:35,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:35,670 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:06:35,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:06:35,684 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) [2021-12-22 14:06:35,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-22 14:06:36,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:36,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 3772 conjuncts, 33 conjunts are in the unsatisfiable core [2021-12-22 14:06:36,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:06:37,042 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-12-22 14:06:37,042 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 14:06:37,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033823421] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:06:37,042 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 14:06:37,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 15 [2021-12-22 14:06:37,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157347837] [2021-12-22 14:06:37,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:06:37,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-22 14:06:37,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:06:37,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-22 14:06:37,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-12-22 14:06:37,047 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) [2021-12-22 14:06:37,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:06:37,366 INFO L93 Difference]: Finished difference Result 14065 states and 20015 transitions. [2021-12-22 14:06:37,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-22 14:06:37,367 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 [2021-12-22 14:06:37,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:06:37,391 INFO L225 Difference]: With dead ends: 14065 [2021-12-22 14:06:37,392 INFO L226 Difference]: Without dead ends: 7070 [2021-12-22 14:06:37,420 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 [2021-12-22 14:06:37,421 INFO L933 BasicCegarLoop]: 1475 mSDtfsCounter, 4 mSDsluCounter, 8835 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 10310 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 14:06:37,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 10310 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 14:06:37,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7070 states. [2021-12-22 14:06:37,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7070 to 7040. [2021-12-22 14:06:37,661 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) [2021-12-22 14:06:37,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7040 states to 7040 states and 10007 transitions. [2021-12-22 14:06:37,686 INFO L78 Accepts]: Start accepts. Automaton has 7040 states and 10007 transitions. Word has length 227 [2021-12-22 14:06:37,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:06:37,688 INFO L470 AbstractCegarLoop]: Abstraction has 7040 states and 10007 transitions. [2021-12-22 14:06:37,688 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) [2021-12-22 14:06:37,688 INFO L276 IsEmpty]: Start isEmpty. Operand 7040 states and 10007 transitions. [2021-12-22 14:06:37,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2021-12-22 14:06:37,699 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:06:37,699 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] [2021-12-22 14:06:37,725 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-22 14:06:37,923 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 [2021-12-22 14:06:37,923 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:06:37,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:06:37,924 INFO L85 PathProgramCache]: Analyzing trace with hash -927110591, now seen corresponding path program 1 times [2021-12-22 14:06:37,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:06:37,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837612850] [2021-12-22 14:06:37,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:37,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:06:38,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:06:38,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:38,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-22 14:06:38,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 14:06:38,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:06:38,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:06:38,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-22 14:06:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-22 14:06:38,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-22 14:06:38,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-22 14:06:38,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:38,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:06:38,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:38,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-22 14:06:38,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:38,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:06:38,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 14:06:38,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:06:38,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-22 14:06:38,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-22 14:06:38,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 14:06:38,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:38,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 14:06:38,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-22 14:06:38,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 14:06:38,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-22 14:06:38,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-22 14:06:38,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 14:06:38,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-22 14:06:38,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-22 14:06:38,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 14:06:38,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:06:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-22 14:06:38,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-22 14:06:38,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-22 14:06:38,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-22 14:06:38,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-22 14:06:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:06:38,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:06:38,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:38,378 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 9 proven. 14 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2021-12-22 14:06:38,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:06:38,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837612850] [2021-12-22 14:06:38,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837612850] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:06:38,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235042300] [2021-12-22 14:06:38,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:38,379 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:06:38,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:06:38,380 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) [2021-12-22 14:06:38,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-22 14:06:39,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:39,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 4041 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-22 14:06:39,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:06:39,803 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2021-12-22 14:06:39,803 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 14:06:39,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235042300] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:06:39,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 14:06:39,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 15 [2021-12-22 14:06:39,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721134461] [2021-12-22 14:06:39,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:06:39,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 14:06:39,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:06:39,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 14:06:39,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-12-22 14:06:39,805 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) [2021-12-22 14:06:40,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:06:40,281 INFO L93 Difference]: Finished difference Result 14063 states and 19997 transitions. [2021-12-22 14:06:40,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 14:06:40,282 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 [2021-12-22 14:06:40,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:06:40,335 INFO L225 Difference]: With dead ends: 14063 [2021-12-22 14:06:40,335 INFO L226 Difference]: Without dead ends: 7044 [2021-12-22 14:06:40,352 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 [2021-12-22 14:06:40,353 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, 0.2s IncrementalHoareTripleChecker+Time [2021-12-22 14:06:40,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1168 Valid, 3354 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-22 14:06:40,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7044 states. [2021-12-22 14:06:40,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7044 to 7040. [2021-12-22 14:06:40,558 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) [2021-12-22 14:06:40,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7040 states to 7040 states and 9992 transitions. [2021-12-22 14:06:40,578 INFO L78 Accepts]: Start accepts. Automaton has 7040 states and 9992 transitions. Word has length 290 [2021-12-22 14:06:40,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:06:40,579 INFO L470 AbstractCegarLoop]: Abstraction has 7040 states and 9992 transitions. [2021-12-22 14:06:40,579 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) [2021-12-22 14:06:40,579 INFO L276 IsEmpty]: Start isEmpty. Operand 7040 states and 9992 transitions. [2021-12-22 14:06:40,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-12-22 14:06:40,587 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:06:40,587 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] [2021-12-22 14:06:40,621 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-22 14:06:40,807 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 [2021-12-22 14:06:40,808 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:06:40,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:06:40,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1285308429, now seen corresponding path program 1 times [2021-12-22 14:06:40,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:06:40,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741231915] [2021-12-22 14:06:40,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:40,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:06:40,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:40,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:06:40,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:40,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:40,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:40,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-22 14:06:40,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:40,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:06:40,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:40,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:40,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:40,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:06:40,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:41,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:41,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:41,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-22 14:06:41,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:41,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:41,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:41,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:06:41,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:41,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 14:06:41,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:41,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:06:41,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:41,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-22 14:06:41,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:41,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-22 14:06:41,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:41,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 14:06:41,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:41,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:41,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:41,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 14:06:41,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:41,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-22 14:06:41,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:41,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 14:06:41,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:41,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-22 14:06:41,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:41,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-22 14:06:41,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:41,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 14:06:41,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:41,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-22 14:06:41,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:41,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-22 14:06:41,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:41,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 14:06:41,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:41,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:06:41,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:41,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-22 14:06:41,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:41,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-22 14:06:41,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:41,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-22 14:06:41,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:41,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-22 14:06:41,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:41,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-22 14:06:41,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:41,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:06:41,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:41,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:06:41,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:41,271 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2021-12-22 14:06:41,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:06:41,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741231915] [2021-12-22 14:06:41,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741231915] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:06:41,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651789301] [2021-12-22 14:06:41,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:41,272 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:06:41,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:06:41,288 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) [2021-12-22 14:06:41,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-22 14:06:42,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:42,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 3790 conjuncts, 33 conjunts are in the unsatisfiable core [2021-12-22 14:06:42,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:06:42,558 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-12-22 14:06:42,572 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 14:06:42,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [651789301] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:06:42,573 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 14:06:42,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 13 [2021-12-22 14:06:42,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445122534] [2021-12-22 14:06:42,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:06:42,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-22 14:06:42,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:06:42,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-22 14:06:42,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-12-22 14:06:42,574 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) [2021-12-22 14:06:42,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:06:42,883 INFO L93 Difference]: Finished difference Result 14092 states and 20055 transitions. [2021-12-22 14:06:42,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-22 14:06:42,884 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 [2021-12-22 14:06:42,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:06:42,907 INFO L225 Difference]: With dead ends: 14092 [2021-12-22 14:06:42,907 INFO L226 Difference]: Without dead ends: 7073 [2021-12-22 14:06:42,932 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 [2021-12-22 14:06:42,933 INFO L933 BasicCegarLoop]: 1465 mSDtfsCounter, 5 mSDsluCounter, 8783 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 10248 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 [2021-12-22 14:06:42,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 10248 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 14:06:42,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7073 states. [2021-12-22 14:06:43,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7073 to 7046. [2021-12-22 14:06:43,160 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) [2021-12-22 14:06:43,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7046 states to 7046 states and 9998 transitions. [2021-12-22 14:06:43,185 INFO L78 Accepts]: Start accepts. Automaton has 7046 states and 9998 transitions. Word has length 227 [2021-12-22 14:06:43,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:06:43,185 INFO L470 AbstractCegarLoop]: Abstraction has 7046 states and 9998 transitions. [2021-12-22 14:06:43,185 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) [2021-12-22 14:06:43,186 INFO L276 IsEmpty]: Start isEmpty. Operand 7046 states and 9998 transitions. [2021-12-22 14:06:43,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-12-22 14:06:43,194 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:06:43,194 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] [2021-12-22 14:06:43,237 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-22 14:06:43,416 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 [2021-12-22 14:06:43,417 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:06:43,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:06:43,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1213312883, now seen corresponding path program 2 times [2021-12-22 14:06:43,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:06:43,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896446591] [2021-12-22 14:06:43,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:43,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:06:43,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:43,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:06:43,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:43,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:43,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:43,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-22 14:06:43,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:43,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:06:43,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:43,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:43,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:43,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:06:43,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:43,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:43,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:43,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-22 14:06:43,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:43,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:43,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:43,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:06:43,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:43,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 14:06:43,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:43,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:06:43,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:43,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-22 14:06:43,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:43,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-22 14:06:43,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:43,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 14:06:43,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:43,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:43,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:43,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 14:06:43,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:43,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-22 14:06:43,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:43,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 14:06:43,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:43,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-22 14:06:43,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:43,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-22 14:06:43,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:43,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 14:06:43,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:43,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-22 14:06:43,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:43,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-22 14:06:43,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:43,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 14:06:43,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:43,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:06:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:43,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-22 14:06:43,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:43,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-22 14:06:43,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:43,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-22 14:06:43,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:43,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-22 14:06:43,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:43,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-22 14:06:43,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:43,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:06:43,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:43,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:06:43,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:43,956 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-22 14:06:43,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:06:43,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896446591] [2021-12-22 14:06:43,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896446591] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:06:43,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:06:43,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-22 14:06:43,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162550057] [2021-12-22 14:06:43,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:06:43,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-22 14:06:43,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:06:43,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-22 14:06:43,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-12-22 14:06:43,959 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) [2021-12-22 14:06:46,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:06:46,589 INFO L93 Difference]: Finished difference Result 11907 states and 17006 transitions. [2021-12-22 14:06:46,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-22 14:06:46,590 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 [2021-12-22 14:06:46,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:06:46,641 INFO L225 Difference]: With dead ends: 11907 [2021-12-22 14:06:46,643 INFO L226 Difference]: Without dead ends: 7144 [2021-12-22 14:06:46,672 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 [2021-12-22 14:06:46,673 INFO L933 BasicCegarLoop]: 1408 mSDtfsCounter, 348 mSDsluCounter, 9152 mSDsCounter, 0 mSdLazyCounter, 2507 mSolverCounterSat, 547 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 10560 SdHoareTripleChecker+Invalid, 3054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 547 IncrementalHoareTripleChecker+Valid, 2507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-22 14:06:46,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [368 Valid, 10560 Invalid, 3054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [547 Valid, 2507 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-22 14:06:46,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7144 states. [2021-12-22 14:06:47,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7144 to 7063. [2021-12-22 14:06:47,318 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) [2021-12-22 14:06:47,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7063 states to 7063 states and 10022 transitions. [2021-12-22 14:06:47,347 INFO L78 Accepts]: Start accepts. Automaton has 7063 states and 10022 transitions. Word has length 227 [2021-12-22 14:06:47,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:06:47,347 INFO L470 AbstractCegarLoop]: Abstraction has 7063 states and 10022 transitions. [2021-12-22 14:06:47,348 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) [2021-12-22 14:06:47,348 INFO L276 IsEmpty]: Start isEmpty. Operand 7063 states and 10022 transitions. [2021-12-22 14:06:47,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-12-22 14:06:47,359 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:06:47,359 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 3, 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, 1] [2021-12-22 14:06:47,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-22 14:06:47,359 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:06:47,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:06:47,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1233650258, now seen corresponding path program 3 times [2021-12-22 14:06:47,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:06:47,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110427633] [2021-12-22 14:06:47,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:47,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:06:47,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:47,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:06:47,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:47,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:47,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:47,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-22 14:06:47,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:47,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:06:47,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:47,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:47,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:47,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:06:47,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:47,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:47,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:47,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-22 14:06:47,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:47,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:47,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:47,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:06:47,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:47,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 14:06:47,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:47,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:06:47,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:47,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-22 14:06:47,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:47,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-22 14:06:47,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:47,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 14:06:47,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:47,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:47,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:47,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 14:06:47,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:47,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-22 14:06:47,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:47,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 14:06:47,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:47,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-22 14:06:47,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:47,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-22 14:06:47,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:47,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 14:06:47,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:47,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-22 14:06:47,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:47,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-22 14:06:47,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:47,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-22 14:06:47,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:47,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:06:47,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:47,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-22 14:06:47,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:47,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-22 14:06:47,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:47,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-22 14:06:47,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:47,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-22 14:06:47,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:47,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-22 14:06:47,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:47,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:06:47,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:47,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:06:47,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:47,840 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-22 14:06:47,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:06:47,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110427633] [2021-12-22 14:06:47,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110427633] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:06:47,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:06:47,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-12-22 14:06:47,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555202108] [2021-12-22 14:06:47,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:06:47,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-22 14:06:47,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:06:47,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-22 14:06:47,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-12-22 14:06:47,843 INFO L87 Difference]: Start difference. First operand 7063 states and 10022 transitions. Second operand has 15 states, 15 states have (on average 8.133333333333333) internal successors, (122), 7 states have internal predecessors, (122), 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) [2021-12-22 14:06:51,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:06:51,705 INFO L93 Difference]: Finished difference Result 14268 states and 20362 transitions. [2021-12-22 14:06:51,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-22 14:06:51,705 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 8.133333333333333) internal successors, (122), 7 states have internal predecessors, (122), 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 [2021-12-22 14:06:51,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:06:51,729 INFO L225 Difference]: With dead ends: 14268 [2021-12-22 14:06:51,730 INFO L226 Difference]: Without dead ends: 7226 [2021-12-22 14:06:51,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=396, Unknown=0, NotChecked=0, Total=462 [2021-12-22 14:06:51,758 INFO L933 BasicCegarLoop]: 1439 mSDtfsCounter, 390 mSDsluCounter, 12513 mSDsCounter, 0 mSdLazyCounter, 2868 mSolverCounterSat, 559 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s 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, 3.4s IncrementalHoareTripleChecker+Time [2021-12-22 14:06:51,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [428 Valid, 13952 Invalid, 3427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [559 Valid, 2868 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-12-22 14:06:51,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7226 states. [2021-12-22 14:06:52,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7226 to 7059. [2021-12-22 14:06:52,119 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) [2021-12-22 14:06:52,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7059 states to 7059 states and 10011 transitions. [2021-12-22 14:06:52,142 INFO L78 Accepts]: Start accepts. Automaton has 7059 states and 10011 transitions. Word has length 227 [2021-12-22 14:06:52,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:06:52,143 INFO L470 AbstractCegarLoop]: Abstraction has 7059 states and 10011 transitions. [2021-12-22 14:06:52,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 8.133333333333333) internal successors, (122), 7 states have internal predecessors, (122), 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) [2021-12-22 14:06:52,143 INFO L276 IsEmpty]: Start isEmpty. Operand 7059 states and 10011 transitions. [2021-12-22 14:06:52,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-12-22 14:06:52,150 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:06:52,150 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-22 14:06:52,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-22 14:06:52,150 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:06:52,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:06:52,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1193967581, now seen corresponding path program 1 times [2021-12-22 14:06:52,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:06:52,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126672361] [2021-12-22 14:06:52,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:52,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:06:52,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:52,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:06:52,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:52,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:52,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:52,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-22 14:06:52,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:52,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 14:06:52,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:52,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 14:06:52,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:52,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:52,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:52,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-22 14:06:52,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:52,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:52,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:52,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 14:06:52,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:52,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-22 14:06:52,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:52,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-22 14:06:52,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:52,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-22 14:06:52,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:52,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-22 14:06:52,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:52,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-22 14:06:52,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:52,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:52,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:52,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-22 14:06:52,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:52,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-22 14:06:52,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:52,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-22 14:06:52,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:52,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-22 14:06:52,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:52,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-22 14:06:52,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:52,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-22 14:06:52,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:52,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-22 14:06:52,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:52,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-22 14:06:52,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:52,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-22 14:06:52,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:52,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-22 14:06:52,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:52,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:52,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:52,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-22 14:06:52,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:52,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-22 14:06:52,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:52,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-22 14:06:52,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:52,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-22 14:06:52,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:52,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-22 14:06:52,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:52,464 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-12-22 14:06:52,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:06:52,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126672361] [2021-12-22 14:06:52,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126672361] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:06:52,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:06:52,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-22 14:06:52,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292533114] [2021-12-22 14:06:52,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:06:52,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 14:06:52,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:06:52,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 14:06:52,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-22 14:06:52,467 INFO L87 Difference]: Start difference. First operand 7059 states and 10011 transitions. Second operand has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 5 states have internal predecessors, (124), 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) [2021-12-22 14:06:55,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:06:55,085 INFO L93 Difference]: Finished difference Result 9162 states and 13008 transitions. [2021-12-22 14:06:55,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-22 14:06:55,086 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 5 states have internal predecessors, (124), 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 [2021-12-22 14:06:55,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:06:55,093 INFO L225 Difference]: With dead ends: 9162 [2021-12-22 14:06:55,093 INFO L226 Difference]: Without dead ends: 1735 [2021-12-22 14:06:55,116 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 [2021-12-22 14:06:55,116 INFO L933 BasicCegarLoop]: 1200 mSDtfsCounter, 303 mSDsluCounter, 3834 mSDsCounter, 0 mSdLazyCounter, 1821 mSolverCounterSat, 437 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 5034 SdHoareTripleChecker+Invalid, 2258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 437 IncrementalHoareTripleChecker+Valid, 1821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-22 14:06:55,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [322 Valid, 5034 Invalid, 2258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [437 Valid, 1821 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-22 14:06:55,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1735 states. [2021-12-22 14:06:55,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1735 to 1723. [2021-12-22 14:06:55,168 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) [2021-12-22 14:06:55,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 2402 transitions. [2021-12-22 14:06:55,174 INFO L78 Accepts]: Start accepts. Automaton has 1723 states and 2402 transitions. Word has length 231 [2021-12-22 14:06:55,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:06:55,174 INFO L470 AbstractCegarLoop]: Abstraction has 1723 states and 2402 transitions. [2021-12-22 14:06:55,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 5 states have internal predecessors, (124), 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) [2021-12-22 14:06:55,175 INFO L276 IsEmpty]: Start isEmpty. Operand 1723 states and 2402 transitions. [2021-12-22 14:06:55,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2021-12-22 14:06:55,179 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:06:55,180 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] [2021-12-22 14:06:55,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-22 14:06:55,180 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:06:55,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:06:55,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1747381424, now seen corresponding path program 1 times [2021-12-22 14:06:55,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:06:55,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992737338] [2021-12-22 14:06:55,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:55,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:06:55,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:06:55,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:55,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-22 14:06:55,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 14:06:55,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:06:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:06:55,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-22 14:06:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-22 14:06:55,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-22 14:06:55,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-22 14:06:55,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 14:06:55,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 14:06:55,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-22 14:06:55,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:06:55,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 14:06:55,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:06:55,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-22 14:06:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:55,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 14:06:55,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-22 14:06:55,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:06:55,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 14:06:55,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:06:55,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-22 14:06:55,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-22 14:06:55,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-22 14:06:55,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-22 14:06:55,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-22 14:06:55,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:55,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 14:06:55,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 14:06:55,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-12-22 14:06:55,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:55,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:06:55,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:55,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-22 14:06:55,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-22 14:06:55,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-22 14:06:55,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-12-22 14:06:55,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-12-22 14:06:55,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-12-22 14:06:55,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:55,577 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2021-12-22 14:06:55,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:06:55,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992737338] [2021-12-22 14:06:55,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992737338] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:06:55,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:06:55,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-22 14:06:55,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349692150] [2021-12-22 14:06:55,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:06:55,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-22 14:06:55,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:06:55,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-22 14:06:55,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-12-22 14:06:55,580 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) [2021-12-22 14:06:58,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:06:58,547 INFO L93 Difference]: Finished difference Result 4760 states and 6764 transitions. [2021-12-22 14:06:58,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-22 14:06:58,548 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 332 [2021-12-22 14:06:58,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:06:58,572 INFO L225 Difference]: With dead ends: 4760 [2021-12-22 14:06:58,573 INFO L226 Difference]: Without dead ends: 3058 [2021-12-22 14:06:58,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-12-22 14:06:58,586 INFO L933 BasicCegarLoop]: 1993 mSDtfsCounter, 894 mSDsluCounter, 8195 mSDsCounter, 0 mSdLazyCounter, 1972 mSolverCounterSat, 645 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1077 SdHoareTripleChecker+Valid, 10188 SdHoareTripleChecker+Invalid, 2617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 645 IncrementalHoareTripleChecker+Valid, 1972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-22 14:06:58,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1077 Valid, 10188 Invalid, 2617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [645 Valid, 1972 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-22 14:06:58,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3058 states. [2021-12-22 14:06:58,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3058 to 1727. [2021-12-22 14:06:58,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1727 states, 1270 states have (on average 1.24251968503937) internal successors, (1578), 1292 states have internal predecessors, (1578), 411 states have call successors, (411), 43 states have call predecessors, (411), 45 states have return successors, (420), 405 states have call predecessors, (420), 410 states have call successors, (420) [2021-12-22 14:06:58,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1727 states to 1727 states and 2409 transitions. [2021-12-22 14:06:58,781 INFO L78 Accepts]: Start accepts. Automaton has 1727 states and 2409 transitions. Word has length 332 [2021-12-22 14:06:58,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:06:58,782 INFO L470 AbstractCegarLoop]: Abstraction has 1727 states and 2409 transitions. [2021-12-22 14:06:58,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2021-12-22 14:06:58,782 INFO L276 IsEmpty]: Start isEmpty. Operand 1727 states and 2409 transitions. [2021-12-22 14:06:58,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2021-12-22 14:06:58,787 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:06:58,788 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1] [2021-12-22 14:06:58,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-22 14:06:58,788 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:06:58,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:06:58,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1976226549, now seen corresponding path program 1 times [2021-12-22 14:06:58,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:06:58,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834615339] [2021-12-22 14:06:58,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:06:58,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:06:59,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 14:06:59,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:59,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-22 14:06:59,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 14:06:59,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:06:59,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:06:59,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-22 14:06:59,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-22 14:06:59,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-22 14:06:59,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-22 14:06:59,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 14:06:59,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 14:06:59,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-22 14:06:59,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:06:59,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 14:06:59,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:06:59,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-22 14:06:59,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:59,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 14:06:59,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-22 14:06:59,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 14:06:59,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 14:06:59,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 14:06:59,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-22 14:06:59,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-22 14:06:59,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-22 14:06:59,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-22 14:06:59,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-22 14:06:59,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:59,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 14:06:59,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 14:06:59,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-12-22 14:06:59,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:59,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 14:06:59,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:59,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-22 14:06:59,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:06:59,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:06:59,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 14:06:59,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:06:59,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-12-22 14:06:59,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-12-22 14:06:59,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2021-12-22 14:06:59,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2021-12-22 14:06:59,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2021-12-22 14:06:59,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-12-22 14:06:59,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:06:59,400 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2021-12-22 14:06:59,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:06:59,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834615339] [2021-12-22 14:06:59,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834615339] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:06:59,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:06:59,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-22 14:06:59,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12625805] [2021-12-22 14:06:59,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:06:59,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-22 14:06:59,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:06:59,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-22 14:06:59,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-12-22 14:06:59,403 INFO L87 Difference]: Start difference. First operand 1727 states and 2409 transitions. Second operand has 10 states, 10 states have (on average 16.8) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (42), 7 states have call predecessors, (42), 2 states have return successors, (40), 3 states have call predecessors, (40), 2 states have call successors, (40) [2021-12-22 14:07:03,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:07:03,625 INFO L93 Difference]: Finished difference Result 4716 states and 6707 transitions. [2021-12-22 14:07:03,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 14:07:03,626 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.8) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (42), 7 states have call predecessors, (42), 2 states have return successors, (40), 3 states have call predecessors, (40), 2 states have call successors, (40) Word has length 361 [2021-12-22 14:07:03,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:07:03,628 INFO L225 Difference]: With dead ends: 4716 [2021-12-22 14:07:03,628 INFO L226 Difference]: Without dead ends: 0 [2021-12-22 14:07:03,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-12-22 14:07:03,637 INFO L933 BasicCegarLoop]: 1938 mSDtfsCounter, 763 mSDsluCounter, 7693 mSDsCounter, 0 mSdLazyCounter, 2191 mSolverCounterSat, 412 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 944 SdHoareTripleChecker+Valid, 9631 SdHoareTripleChecker+Invalid, 2603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 412 IncrementalHoareTripleChecker+Valid, 2191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-12-22 14:07:03,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [944 Valid, 9631 Invalid, 2603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [412 Valid, 2191 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-12-22 14:07:03,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-22 14:07:03,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-22 14:07:03,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 14:07:03,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-22 14:07:03,651 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 361 [2021-12-22 14:07:03,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:07:03,651 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-22 14:07:03,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.8) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (42), 7 states have call predecessors, (42), 2 states have return successors, (40), 3 states have call predecessors, (40), 2 states have call successors, (40) [2021-12-22 14:07:03,652 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-22 14:07:03,652 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-22 14:07:03,667 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-22 14:07:03,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-22 14:07:03,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.