./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.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 7f108eec0e6f75d7c7724c96156fb3bec5ecbcd0f2a8def1b3ebffa34d9deb6c --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 10:53:25,419 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 10:53:25,421 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 10:53:25,451 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 10:53:25,452 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 10:53:25,453 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 10:53:25,455 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 10:53:25,457 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 10:53:25,459 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 10:53:25,462 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 10:53:25,463 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 10:53:25,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 10:53:25,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 10:53:25,466 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 10:53:25,467 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 10:53:25,470 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 10:53:25,472 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 10:53:25,473 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 10:53:25,474 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 10:53:25,475 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 10:53:25,478 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 10:53:25,479 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 10:53:25,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 10:53:25,481 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 10:53:25,482 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 10:53:25,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 10:53:25,489 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 10:53:25,489 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 10:53:25,490 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 10:53:25,490 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 10:53:25,490 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 10:53:25,491 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 10:53:25,492 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 10:53:25,492 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 10:53:25,493 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 10:53:25,494 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 10:53:25,494 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 10:53:25,495 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 10:53:25,495 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 10:53:25,495 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 10:53:25,496 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 10:53:25,497 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 10:53:25,501 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 10:53:25,515 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 10:53:25,515 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 10:53:25,515 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 10:53:25,515 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 10:53:25,516 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 10:53:25,516 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 10:53:25,517 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 10:53:25,517 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 10:53:25,517 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 10:53:25,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 10:53:25,518 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 10:53:25,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 10:53:25,518 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 10:53:25,518 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 10:53:25,518 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 10:53:25,519 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 10:53:25,519 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 10:53:25,519 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 10:53:25,519 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 10:53:25,519 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 10:53:25,519 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 10:53:25,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 10:53:25,520 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 10:53:25,520 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 10:53:25,520 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 10:53:25,520 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 10:53:25,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 10:53:25,520 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 10:53:25,520 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 10:53:25,521 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 10:53:25,521 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f108eec0e6f75d7c7724c96156fb3bec5ecbcd0f2a8def1b3ebffa34d9deb6c [2022-07-21 10:53:25,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 10:53:25,799 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 10:53:25,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 10:53:25,802 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 10:53:25,802 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 10:53:25,803 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.cil.out.i [2022-07-21 10:53:25,843 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3ef12258/cfb300a6b25e4257959fbf26e476dc1c/FLAGaa5362167 [2022-07-21 10:53:26,470 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 10:53:26,470 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.cil.out.i [2022-07-21 10:53:26,502 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3ef12258/cfb300a6b25e4257959fbf26e476dc1c/FLAGaa5362167 [2022-07-21 10:53:26,881 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3ef12258/cfb300a6b25e4257959fbf26e476dc1c [2022-07-21 10:53:26,883 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 10:53:26,884 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 10:53:26,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 10:53:26,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 10:53:26,889 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 10:53:26,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:53:26" (1/1) ... [2022-07-21 10:53:26,890 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77ee0e21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:53:26, skipping insertion in model container [2022-07-21 10:53:26,890 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:53:26" (1/1) ... [2022-07-21 10:53:26,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 10:53:26,983 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 10:53:27,536 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.cil.out.i[114617,114630] [2022-07-21 10:53:27,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 10:53:27,985 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 10:53:28,074 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.cil.out.i[114617,114630] [2022-07-21 10:53:28,188 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 10:53:28,260 INFO L208 MainTranslator]: Completed translation [2022-07-21 10:53:28,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:53:28 WrapperNode [2022-07-21 10:53:28,262 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 10:53:28,263 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 10:53:28,264 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 10:53:28,264 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 10:53:28,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:53:28" (1/1) ... [2022-07-21 10:53:28,332 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:53:28" (1/1) ... [2022-07-21 10:53:28,438 INFO L137 Inliner]: procedures = 222, calls = 1486, calls flagged for inlining = 101, calls inlined = 96, statements flattened = 3995 [2022-07-21 10:53:28,439 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 10:53:28,440 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 10:53:28,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 10:53:28,440 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 10:53:28,446 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:53:28" (1/1) ... [2022-07-21 10:53:28,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:53:28" (1/1) ... [2022-07-21 10:53:28,465 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:53:28" (1/1) ... [2022-07-21 10:53:28,465 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:53:28" (1/1) ... [2022-07-21 10:53:28,571 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:53:28" (1/1) ... [2022-07-21 10:53:28,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:53:28" (1/1) ... [2022-07-21 10:53:28,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:53:28" (1/1) ... [2022-07-21 10:53:28,630 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 10:53:28,631 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 10:53:28,632 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 10:53:28,632 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 10:53:28,632 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:53:28" (1/1) ... [2022-07-21 10:53:28,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 10:53:28,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:53:28,667 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 10:53:28,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 10:53:28,758 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-21 10:53:28,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-21 10:53:28,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_18 [2022-07-21 10:53:28,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_18 [2022-07-21 10:53:28,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 10:53:28,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 10:53:28,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 10:53:28,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 10:53:28,759 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2022-07-21 10:53:28,759 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2022-07-21 10:53:28,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-07-21 10:53:28,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-07-21 10:53:28,760 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_handle_firmware_update [2022-07-21 10:53:28,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_handle_firmware_update [2022-07-21 10:53:28,760 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2022-07-21 10:53:28,760 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2022-07-21 10:53:28,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 10:53:28,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 10:53:28,760 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-07-21 10:53:28,760 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-07-21 10:53:28,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-07-21 10:53:28,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-07-21 10:53:28,761 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-07-21 10:53:28,761 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-07-21 10:53:28,761 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_get_info [2022-07-21 10:53:28,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_get_info [2022-07-21 10:53:28,761 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2022-07-21 10:53:28,761 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2022-07-21 10:53:28,761 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-21 10:53:28,762 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-21 10:53:28,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 10:53:28,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 10:53:28,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 10:53:28,762 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 10:53:28,762 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 10:53:28,762 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 10:53:28,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-07-21 10:53:28,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-07-21 10:53:28,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 10:53:28,763 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2022-07-21 10:53:28,763 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2022-07-21 10:53:28,763 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-21 10:53:28,763 INFO L130 BoogieDeclarations]: Found specification of procedure ihex_next_binrec [2022-07-21 10:53:28,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ihex_next_binrec [2022-07-21 10:53:28,764 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-07-21 10:53:28,764 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-07-21 10:53:28,764 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_buffers_free [2022-07-21 10:53:28,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_buffers_free [2022-07-21 10:53:28,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 10:53:28,764 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2022-07-21 10:53:28,765 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2022-07-21 10:53:28,765 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-07-21 10:53:28,765 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2022-07-21 10:53:28,765 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2022-07-21 10:53:28,765 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_attribute_show [2022-07-21 10:53:28,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_attribute_show [2022-07-21 10:53:28,766 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2022-07-21 10:53:28,766 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2022-07-21 10:53:28,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 10:53:28,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 10:53:28,767 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-21 10:53:28,767 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-21 10:53:28,767 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-21 10:53:28,768 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-21 10:53:28,768 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-21 10:53:28,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-21 10:53:28,768 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-21 10:53:28,768 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-21 10:53:28,768 INFO L130 BoogieDeclarations]: Found specification of procedure __ims_pcu_execute_command [2022-07-21 10:53:28,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __ims_pcu_execute_command [2022-07-21 10:53:28,769 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-07-21 10:53:28,769 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-07-21 10:53:28,769 INFO L130 BoogieDeclarations]: Found specification of procedure __ims_pcu_execute_bl_command [2022-07-21 10:53:28,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __ims_pcu_execute_bl_command [2022-07-21 10:53:28,769 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2022-07-21 10:53:28,770 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2022-07-21 10:53:28,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-21 10:53:28,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-21 10:53:28,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-21 10:53:28,770 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2022-07-21 10:53:28,770 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2022-07-21 10:53:28,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-21 10:53:28,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_8 [2022-07-21 10:53:28,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_8 [2022-07-21 10:53:28,770 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2022-07-21 10:53:28,771 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2022-07-21 10:53:28,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 10:53:28,771 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-07-21 10:53:28,771 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-07-21 10:53:28,771 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2022-07-21 10:53:28,771 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2022-07-21 10:53:28,772 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_destroy_backlight [2022-07-21 10:53:28,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_destroy_backlight [2022-07-21 10:53:28,772 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_attribute_store [2022-07-21 10:53:28,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_attribute_store [2022-07-21 10:53:28,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 10:53:28,773 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 10:53:28,773 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-21 10:53:28,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-21 10:53:28,773 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_resume [2022-07-21 10:53:28,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_resume [2022-07-21 10:53:28,774 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-07-21 10:53:28,774 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-07-21 10:53:28,774 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_destroy_buttons [2022-07-21 10:53:28,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_destroy_buttons [2022-07-21 10:53:28,774 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 10:53:28,774 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 10:53:28,775 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_start_io [2022-07-21 10:53:28,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_start_io [2022-07-21 10:53:28,775 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-07-21 10:53:28,775 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-07-21 10:53:28,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 10:53:28,775 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2022-07-21 10:53:28,775 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2022-07-21 10:53:28,775 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2022-07-21 10:53:28,776 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2022-07-21 10:53:28,776 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_send_cmd_chunk [2022-07-21 10:53:28,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_send_cmd_chunk [2022-07-21 10:53:28,777 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoint [2022-07-21 10:53:28,779 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoint [2022-07-21 10:53:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 10:53:28,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 10:53:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 10:53:28,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_2 [2022-07-21 10:53:28,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_2 [2022-07-21 10:53:28,781 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2022-07-21 10:53:28,781 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2022-07-21 10:53:28,782 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_line_setup [2022-07-21 10:53:28,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_line_setup [2022-07-21 10:53:28,784 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-07-21 10:53:28,784 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-07-21 10:53:28,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 10:53:28,785 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_stop_io [2022-07-21 10:53:28,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_stop_io [2022-07-21 10:53:28,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-21 10:53:28,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-21 10:53:28,785 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_byte_needs_escape [2022-07-21 10:53:28,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_byte_needs_escape [2022-07-21 10:53:28,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 10:53:28,788 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2022-07-21 10:53:28,788 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2022-07-21 10:53:28,788 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 10:53:28,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 10:53:28,789 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2022-07-21 10:53:28,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2022-07-21 10:53:28,789 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2022-07-21 10:53:28,789 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2022-07-21 10:53:28,789 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-07-21 10:53:28,789 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-07-21 10:53:28,789 INFO L130 BoogieDeclarations]: Found specification of procedure ihex_validate_fw [2022-07-21 10:53:28,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ihex_validate_fw [2022-07-21 10:53:28,790 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_irq [2022-07-21 10:53:28,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_irq [2022-07-21 10:53:28,790 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2022-07-21 10:53:28,790 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2022-07-21 10:53:28,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-07-21 10:53:28,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-07-21 10:53:28,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 10:53:28,790 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_disconnect [2022-07-21 10:53:28,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_disconnect [2022-07-21 10:53:28,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 10:53:28,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 10:53:29,277 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 10:53:29,295 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 10:53:29,397 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 10:53:30,152 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-07-21 10:53:31,006 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 10:53:31,017 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 10:53:31,017 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 10:53:31,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:53:31 BoogieIcfgContainer [2022-07-21 10:53:31,019 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 10:53:31,021 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 10:53:31,021 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 10:53:31,023 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 10:53:31,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:53:26" (1/3) ... [2022-07-21 10:53:31,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b26ddff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:53:31, skipping insertion in model container [2022-07-21 10:53:31,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:53:28" (2/3) ... [2022-07-21 10:53:31,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b26ddff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:53:31, skipping insertion in model container [2022-07-21 10:53:31,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:53:31" (3/3) ... [2022-07-21 10:53:31,025 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.cil.out.i [2022-07-21 10:53:31,035 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 10:53:31,035 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 10:53:31,094 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 10:53:31,099 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@742811a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@124afd89 [2022-07-21 10:53:31,099 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 10:53:31,106 INFO L276 IsEmpty]: Start isEmpty. Operand has 1168 states, 813 states have (on average 1.3444034440344403) internal successors, (1093), 846 states have internal predecessors, (1093), 283 states have call successors, (283), 72 states have call predecessors, (283), 70 states have return successors, (268), 267 states have call predecessors, (268), 268 states have call successors, (268) [2022-07-21 10:53:31,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-07-21 10:53:31,121 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:53:31,122 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:53:31,122 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:53:31,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:53:31,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1340860104, now seen corresponding path program 1 times [2022-07-21 10:53:31,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:53:31,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338580039] [2022-07-21 10:53:31,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:53:31,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:53:31,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:31,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:53:31,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:31,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:53:31,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:31,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:53:31,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:31,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:53:31,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:31,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:53:31,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:31,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:53:31,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:31,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:53:31,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:31,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:53:31,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:31,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:53:31,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:31,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:53:31,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:31,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:53:31,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:31,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:53:31,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:31,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:53:31,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:31,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:53:31,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:31,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:53:31,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:31,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:53:31,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:31,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:53:31,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:31,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:53:31,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:31,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:53:31,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:31,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:53:31,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:31,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:53:31,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:31,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:53:31,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:31,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:53:31,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:31,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:53:31,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:31,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-21 10:53:31,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:31,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2022-07-21 10:53:31,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:53:31,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338580039] [2022-07-21 10:53:31,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338580039] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:53:31,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:53:31,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 10:53:31,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967150467] [2022-07-21 10:53:31,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:53:31,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 10:53:31,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:53:31,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 10:53:31,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:53:31,776 INFO L87 Difference]: Start difference. First operand has 1168 states, 813 states have (on average 1.3444034440344403) internal successors, (1093), 846 states have internal predecessors, (1093), 283 states have call successors, (283), 72 states have call predecessors, (283), 70 states have return successors, (268), 267 states have call predecessors, (268), 268 states have call successors, (268) Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-07-21 10:53:34,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:53:34,779 INFO L93 Difference]: Finished difference Result 3639 states and 5331 transitions. [2022-07-21 10:53:34,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 10:53:34,781 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 174 [2022-07-21 10:53:34,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:53:34,825 INFO L225 Difference]: With dead ends: 3639 [2022-07-21 10:53:34,839 INFO L226 Difference]: Without dead ends: 2436 [2022-07-21 10:53:34,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 10:53:34,853 INFO L413 NwaCegarLoop]: 1766 mSDtfsCounter, 2411 mSDsluCounter, 2731 mSDsCounter, 0 mSdLazyCounter, 1917 mSolverCounterSat, 1435 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2584 SdHoareTripleChecker+Valid, 4497 SdHoareTripleChecker+Invalid, 3352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1435 IncrementalHoareTripleChecker+Valid, 1917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-21 10:53:34,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2584 Valid, 4497 Invalid, 3352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1435 Valid, 1917 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-21 10:53:34,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2436 states. [2022-07-21 10:53:35,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2436 to 2184. [2022-07-21 10:53:35,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2184 states, 1552 states have (on average 1.3324742268041236) internal successors, (2068), 1580 states have internal predecessors, (2068), 493 states have call successors, (493), 139 states have call predecessors, (493), 138 states have return successors, (488), 486 states have call predecessors, (488), 488 states have call successors, (488) [2022-07-21 10:53:35,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2184 states to 2184 states and 3049 transitions. [2022-07-21 10:53:35,060 INFO L78 Accepts]: Start accepts. Automaton has 2184 states and 3049 transitions. Word has length 174 [2022-07-21 10:53:35,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:53:35,062 INFO L495 AbstractCegarLoop]: Abstraction has 2184 states and 3049 transitions. [2022-07-21 10:53:35,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-07-21 10:53:35,062 INFO L276 IsEmpty]: Start isEmpty. Operand 2184 states and 3049 transitions. [2022-07-21 10:53:35,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-07-21 10:53:35,072 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:53:35,072 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:53:35,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 10:53:35,073 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:53:35,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:53:35,073 INFO L85 PathProgramCache]: Analyzing trace with hash -741605332, now seen corresponding path program 1 times [2022-07-21 10:53:35,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:53:35,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594310060] [2022-07-21 10:53:35,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:53:35,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:53:35,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:35,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:53:35,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:35,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:53:35,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:35,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:53:35,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:35,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:53:35,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:35,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:53:35,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:35,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:53:35,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:35,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:53:35,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:35,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:53:35,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:35,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:53:35,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:35,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:53:35,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:35,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:53:35,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:35,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:53:35,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:35,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:53:35,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:35,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:53:35,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:35,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:53:35,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:35,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:53:35,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:35,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:53:35,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:35,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:53:35,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:35,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:53:35,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:35,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:53:35,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:35,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:53:35,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:35,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:53:35,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:35,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:53:35,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:35,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:53:35,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:35,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-21 10:53:35,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:35,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-21 10:53:35,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:35,496 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2022-07-21 10:53:35,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:53:35,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594310060] [2022-07-21 10:53:35,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594310060] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:53:35,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:53:35,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 10:53:35,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974678586] [2022-07-21 10:53:35,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:53:35,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 10:53:35,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:53:35,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 10:53:35,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:53:35,500 INFO L87 Difference]: Start difference. First operand 2184 states and 3049 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-21 10:53:39,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:53:39,270 INFO L93 Difference]: Finished difference Result 6949 states and 10117 transitions. [2022-07-21 10:53:39,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 10:53:39,271 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 184 [2022-07-21 10:53:39,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:53:39,292 INFO L225 Difference]: With dead ends: 6949 [2022-07-21 10:53:39,292 INFO L226 Difference]: Without dead ends: 4818 [2022-07-21 10:53:39,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 10:53:39,301 INFO L413 NwaCegarLoop]: 1958 mSDtfsCounter, 2453 mSDsluCounter, 2831 mSDsCounter, 0 mSdLazyCounter, 2031 mSolverCounterSat, 1350 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2621 SdHoareTripleChecker+Valid, 4789 SdHoareTripleChecker+Invalid, 3381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1350 IncrementalHoareTripleChecker+Valid, 2031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-07-21 10:53:39,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2621 Valid, 4789 Invalid, 3381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1350 Valid, 2031 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-07-21 10:53:39,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4818 states. [2022-07-21 10:53:39,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4818 to 4364. [2022-07-21 10:53:39,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4364 states, 3113 states have (on average 1.332155477031802) internal successors, (4147), 3165 states have internal predecessors, (4147), 962 states have call successors, (962), 277 states have call predecessors, (962), 288 states have return successors, (1029), 963 states have call predecessors, (1029), 957 states have call successors, (1029) [2022-07-21 10:53:39,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4364 states to 4364 states and 6138 transitions. [2022-07-21 10:53:39,447 INFO L78 Accepts]: Start accepts. Automaton has 4364 states and 6138 transitions. Word has length 184 [2022-07-21 10:53:39,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:53:39,447 INFO L495 AbstractCegarLoop]: Abstraction has 4364 states and 6138 transitions. [2022-07-21 10:53:39,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-21 10:53:39,448 INFO L276 IsEmpty]: Start isEmpty. Operand 4364 states and 6138 transitions. [2022-07-21 10:53:39,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-07-21 10:53:39,450 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:53:39,451 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:53:39,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 10:53:39,451 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:53:39,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:53:39,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1515497706, now seen corresponding path program 1 times [2022-07-21 10:53:39,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:53:39,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045869317] [2022-07-21 10:53:39,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:53:39,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:53:39,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:39,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:53:39,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:39,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:53:39,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:39,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:53:39,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:39,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:53:39,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:39,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:53:39,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:39,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:53:39,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:39,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:53:39,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:39,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:53:39,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:39,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:53:39,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:39,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:53:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:39,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:53:39,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:39,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:53:39,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:39,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:53:39,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:39,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:53:39,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:39,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:53:39,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:39,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:53:39,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:39,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:53:39,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:39,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:53:39,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:39,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:53:39,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:39,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:53:39,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:39,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:53:39,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:39,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:53:39,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:39,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:53:39,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:39,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:53:39,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:39,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-21 10:53:39,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:39,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-21 10:53:39,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:39,862 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2022-07-21 10:53:39,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:53:39,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045869317] [2022-07-21 10:53:39,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045869317] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:53:39,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:53:39,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 10:53:39,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547651396] [2022-07-21 10:53:39,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:53:39,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 10:53:39,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:53:39,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 10:53:39,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:53:39,866 INFO L87 Difference]: Start difference. First operand 4364 states and 6138 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-21 10:53:41,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:53:41,949 INFO L93 Difference]: Finished difference Result 4810 states and 7042 transitions. [2022-07-21 10:53:41,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 10:53:41,950 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 185 [2022-07-21 10:53:41,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:53:41,975 INFO L225 Difference]: With dead ends: 4810 [2022-07-21 10:53:41,976 INFO L226 Difference]: Without dead ends: 4807 [2022-07-21 10:53:41,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 10:53:41,984 INFO L413 NwaCegarLoop]: 1513 mSDtfsCounter, 1928 mSDsluCounter, 1451 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 798 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2105 SdHoareTripleChecker+Valid, 2964 SdHoareTripleChecker+Invalid, 1750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 798 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-21 10:53:41,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2105 Valid, 2964 Invalid, 1750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [798 Valid, 952 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-21 10:53:41,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4807 states. [2022-07-21 10:53:42,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4807 to 4363. [2022-07-21 10:53:42,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4363 states, 3113 states have (on average 1.3318342434950208) internal successors, (4146), 3164 states have internal predecessors, (4146), 961 states have call successors, (961), 277 states have call predecessors, (961), 288 states have return successors, (1029), 963 states have call predecessors, (1029), 957 states have call successors, (1029) [2022-07-21 10:53:42,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4363 states to 4363 states and 6136 transitions. [2022-07-21 10:53:42,198 INFO L78 Accepts]: Start accepts. Automaton has 4363 states and 6136 transitions. Word has length 185 [2022-07-21 10:53:42,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:53:42,199 INFO L495 AbstractCegarLoop]: Abstraction has 4363 states and 6136 transitions. [2022-07-21 10:53:42,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-21 10:53:42,199 INFO L276 IsEmpty]: Start isEmpty. Operand 4363 states and 6136 transitions. [2022-07-21 10:53:42,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-07-21 10:53:42,202 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:53:42,202 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:53:42,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 10:53:42,202 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:53:42,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:53:42,203 INFO L85 PathProgramCache]: Analyzing trace with hash 263647343, now seen corresponding path program 1 times [2022-07-21 10:53:42,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:53:42,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473095417] [2022-07-21 10:53:42,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:53:42,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:53:42,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:42,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:53:42,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:42,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:53:42,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:42,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:53:42,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:42,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:53:42,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:42,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:53:42,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:42,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:53:42,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:42,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:53:42,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:42,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:53:42,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:42,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:53:42,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:42,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:53:42,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:42,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:53:42,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:42,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:53:42,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:42,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:53:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:42,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:53:42,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:42,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:53:42,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:42,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:53:42,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:42,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:53:42,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:42,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:53:42,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:42,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:53:42,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:42,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:53:42,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:42,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:53:42,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:42,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:53:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:42,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:53:42,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:42,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:53:42,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:42,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-21 10:53:42,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:42,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-21 10:53:42,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:42,479 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2022-07-21 10:53:42,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:53:42,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473095417] [2022-07-21 10:53:42,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473095417] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:53:42,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:53:42,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 10:53:42,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829897551] [2022-07-21 10:53:42,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:53:42,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 10:53:42,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:53:42,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 10:53:42,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:53:42,482 INFO L87 Difference]: Start difference. First operand 4363 states and 6136 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-21 10:53:44,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:53:44,667 INFO L93 Difference]: Finished difference Result 4809 states and 7040 transitions. [2022-07-21 10:53:44,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 10:53:44,673 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 186 [2022-07-21 10:53:44,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:53:44,703 INFO L225 Difference]: With dead ends: 4809 [2022-07-21 10:53:44,703 INFO L226 Difference]: Without dead ends: 4806 [2022-07-21 10:53:44,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 10:53:44,710 INFO L413 NwaCegarLoop]: 1499 mSDtfsCounter, 1932 mSDsluCounter, 1449 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 806 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2110 SdHoareTripleChecker+Valid, 2948 SdHoareTripleChecker+Invalid, 1758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 806 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:53:44,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2110 Valid, 2948 Invalid, 1758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [806 Valid, 952 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-21 10:53:44,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4806 states. [2022-07-21 10:53:44,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4806 to 4362. [2022-07-21 10:53:44,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4362 states, 3113 states have (on average 1.3315130099582397) internal successors, (4145), 3163 states have internal predecessors, (4145), 960 states have call successors, (960), 277 states have call predecessors, (960), 288 states have return successors, (1029), 963 states have call predecessors, (1029), 957 states have call successors, (1029) [2022-07-21 10:53:44,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4362 states to 4362 states and 6134 transitions. [2022-07-21 10:53:44,895 INFO L78 Accepts]: Start accepts. Automaton has 4362 states and 6134 transitions. Word has length 186 [2022-07-21 10:53:44,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:53:44,896 INFO L495 AbstractCegarLoop]: Abstraction has 4362 states and 6134 transitions. [2022-07-21 10:53:44,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-21 10:53:44,897 INFO L276 IsEmpty]: Start isEmpty. Operand 4362 states and 6134 transitions. [2022-07-21 10:53:44,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-21 10:53:44,900 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:53:44,900 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:53:44,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 10:53:44,900 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:53:44,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:53:44,901 INFO L85 PathProgramCache]: Analyzing trace with hash -417426119, now seen corresponding path program 1 times [2022-07-21 10:53:44,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:53:44,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699458759] [2022-07-21 10:53:44,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:53:44,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:53:44,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:45,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:53:45,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:45,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:53:45,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:45,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:53:45,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:45,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:53:45,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:45,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:53:45,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:45,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:53:45,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:45,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:53:45,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:45,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:53:45,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:45,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:53:45,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:45,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:53:45,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:45,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:53:45,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:45,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:53:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:45,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:53:45,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:45,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:53:45,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:45,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:53:45,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:45,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:53:45,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:45,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:53:45,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:45,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:53:45,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:45,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:53:45,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:45,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:53:45,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:45,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:53:45,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:45,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:53:45,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:45,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:53:45,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:45,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:53:45,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:45,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-21 10:53:45,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:45,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-21 10:53:45,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:45,182 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2022-07-21 10:53:45,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:53:45,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699458759] [2022-07-21 10:53:45,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699458759] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:53:45,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:53:45,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 10:53:45,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688656277] [2022-07-21 10:53:45,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:53:45,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 10:53:45,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:53:45,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 10:53:45,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:53:45,184 INFO L87 Difference]: Start difference. First operand 4362 states and 6134 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-21 10:53:47,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:53:47,188 INFO L93 Difference]: Finished difference Result 4808 states and 7038 transitions. [2022-07-21 10:53:47,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 10:53:47,189 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 187 [2022-07-21 10:53:47,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:53:47,211 INFO L225 Difference]: With dead ends: 4808 [2022-07-21 10:53:47,211 INFO L226 Difference]: Without dead ends: 4805 [2022-07-21 10:53:47,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 10:53:47,215 INFO L413 NwaCegarLoop]: 1513 mSDtfsCounter, 1918 mSDsluCounter, 1447 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 790 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2093 SdHoareTripleChecker+Valid, 2960 SdHoareTripleChecker+Invalid, 1749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 790 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-21 10:53:47,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2093 Valid, 2960 Invalid, 1749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [790 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-21 10:53:47,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4805 states. [2022-07-21 10:53:47,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4805 to 4361. [2022-07-21 10:53:47,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4361 states, 3113 states have (on average 1.3311917764214585) internal successors, (4144), 3162 states have internal predecessors, (4144), 959 states have call successors, (959), 277 states have call predecessors, (959), 288 states have return successors, (1029), 963 states have call predecessors, (1029), 957 states have call successors, (1029) [2022-07-21 10:53:47,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4361 states to 4361 states and 6132 transitions. [2022-07-21 10:53:47,350 INFO L78 Accepts]: Start accepts. Automaton has 4361 states and 6132 transitions. Word has length 187 [2022-07-21 10:53:47,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:53:47,351 INFO L495 AbstractCegarLoop]: Abstraction has 4361 states and 6132 transitions. [2022-07-21 10:53:47,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-21 10:53:47,352 INFO L276 IsEmpty]: Start isEmpty. Operand 4361 states and 6132 transitions. [2022-07-21 10:53:47,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-07-21 10:53:47,354 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:53:47,354 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:53:47,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 10:53:47,354 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:53:47,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:53:47,355 INFO L85 PathProgramCache]: Analyzing trace with hash -55862094, now seen corresponding path program 1 times [2022-07-21 10:53:47,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:53:47,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504618061] [2022-07-21 10:53:47,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:53:47,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:53:47,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:47,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:53:47,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:47,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:53:47,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:47,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:53:47,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:47,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:53:47,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:47,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:53:47,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:47,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:53:47,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:47,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:53:47,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:47,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:53:47,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:47,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:53:47,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:47,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:53:47,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:47,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:53:47,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:47,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:53:47,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:47,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:53:47,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:47,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:53:47,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:47,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:53:47,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:47,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:53:47,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:47,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:53:47,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:47,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:53:47,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:47,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:53:47,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:47,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:53:47,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:47,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:53:47,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:47,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:53:47,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:47,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:53:47,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:47,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:53:47,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:47,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-21 10:53:47,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:47,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-21 10:53:47,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:47,654 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2022-07-21 10:53:47,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:53:47,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504618061] [2022-07-21 10:53:47,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504618061] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:53:47,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:53:47,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 10:53:47,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999471203] [2022-07-21 10:53:47,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:53:47,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 10:53:47,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:53:47,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 10:53:47,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:53:47,655 INFO L87 Difference]: Start difference. First operand 4361 states and 6132 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-21 10:53:49,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:53:49,649 INFO L93 Difference]: Finished difference Result 4807 states and 7036 transitions. [2022-07-21 10:53:49,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 10:53:49,650 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 188 [2022-07-21 10:53:49,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:53:49,674 INFO L225 Difference]: With dead ends: 4807 [2022-07-21 10:53:49,674 INFO L226 Difference]: Without dead ends: 4795 [2022-07-21 10:53:49,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 10:53:49,678 INFO L413 NwaCegarLoop]: 1506 mSDtfsCounter, 1920 mSDsluCounter, 1447 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 789 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2098 SdHoareTripleChecker+Valid, 2953 SdHoareTripleChecker+Invalid, 1738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 789 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-21 10:53:49,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2098 Valid, 2953 Invalid, 1738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [789 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-21 10:53:49,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4795 states. [2022-07-21 10:53:49,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4795 to 4351. [2022-07-21 10:53:49,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4351 states, 3104 states have (on average 1.3308634020618557) internal successors, (4131), 3152 states have internal predecessors, (4131), 958 states have call successors, (958), 277 states have call predecessors, (958), 288 states have return successors, (1029), 963 states have call predecessors, (1029), 957 states have call successors, (1029) [2022-07-21 10:53:49,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4351 states to 4351 states and 6118 transitions. [2022-07-21 10:53:49,820 INFO L78 Accepts]: Start accepts. Automaton has 4351 states and 6118 transitions. Word has length 188 [2022-07-21 10:53:49,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:53:49,820 INFO L495 AbstractCegarLoop]: Abstraction has 4351 states and 6118 transitions. [2022-07-21 10:53:49,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-21 10:53:49,821 INFO L276 IsEmpty]: Start isEmpty. Operand 4351 states and 6118 transitions. [2022-07-21 10:53:49,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2022-07-21 10:53:49,829 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:53:49,829 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:53:49,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 10:53:49,829 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:53:49,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:53:49,830 INFO L85 PathProgramCache]: Analyzing trace with hash 734121489, now seen corresponding path program 1 times [2022-07-21 10:53:49,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:53:49,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476428540] [2022-07-21 10:53:49,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:53:49,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:53:49,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:53:50,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:53:50,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:53:50,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:53:50,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:53:50,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:53:50,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:53:50,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:53:50,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:53:50,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:53:50,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:53:50,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:53:50,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:53:50,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:53:50,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:53:50,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:53:50,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:53:50,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:53:50,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:53:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:53:50,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:53:50,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:53:50,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:53:50,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:53:50,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-21 10:53:50,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-21 10:53:50,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-21 10:53:50,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:53:50,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:53:50,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-21 10:53:50,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-21 10:53:50,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-21 10:53:50,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 10:53:50,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-21 10:53:50,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:53:50,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-21 10:53:50,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:53:50,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 10:53:50,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-21 10:53:50,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-07-21 10:53:50,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-07-21 10:53:50,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:50,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1241 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1232 trivial. 0 not checked. [2022-07-21 10:53:50,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:53:50,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476428540] [2022-07-21 10:53:50,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476428540] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:53:50,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:53:50,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-21 10:53:50,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491554143] [2022-07-21 10:53:50,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:53:50,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 10:53:50,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:53:50,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 10:53:50,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-07-21 10:53:50,223 INFO L87 Difference]: Start difference. First operand 4351 states and 6118 transitions. Second operand has 10 states, 10 states have (on average 13.5) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (42), 9 states have call predecessors, (42), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-07-21 10:53:54,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:53:54,640 INFO L93 Difference]: Finished difference Result 11248 states and 16329 transitions. [2022-07-21 10:53:54,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 10:53:54,641 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.5) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (42), 9 states have call predecessors, (42), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 305 [2022-07-21 10:53:54,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:53:54,697 INFO L225 Difference]: With dead ends: 11248 [2022-07-21 10:53:54,697 INFO L226 Difference]: Without dead ends: 6950 [2022-07-21 10:53:54,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2022-07-21 10:53:54,711 INFO L413 NwaCegarLoop]: 1527 mSDtfsCounter, 2485 mSDsluCounter, 4441 mSDsCounter, 0 mSdLazyCounter, 4473 mSolverCounterSat, 2109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2636 SdHoareTripleChecker+Valid, 5968 SdHoareTripleChecker+Invalid, 6582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2109 IncrementalHoareTripleChecker+Valid, 4473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:53:54,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2636 Valid, 5968 Invalid, 6582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2109 Valid, 4473 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-07-21 10:53:54,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6950 states. [2022-07-21 10:53:54,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6950 to 6148. [2022-07-21 10:53:54,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6148 states, 4466 states have (on average 1.3463949843260188) internal successors, (6013), 4522 states have internal predecessors, (6013), 1279 states have call successors, (1279), 375 states have call predecessors, (1279), 402 states have return successors, (1410), 1292 states have call predecessors, (1410), 1278 states have call successors, (1410) [2022-07-21 10:53:54,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6148 states to 6148 states and 8702 transitions. [2022-07-21 10:53:54,913 INFO L78 Accepts]: Start accepts. Automaton has 6148 states and 8702 transitions. Word has length 305 [2022-07-21 10:53:54,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:53:54,914 INFO L495 AbstractCegarLoop]: Abstraction has 6148 states and 8702 transitions. [2022-07-21 10:53:54,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.5) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (42), 9 states have call predecessors, (42), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-07-21 10:53:54,914 INFO L276 IsEmpty]: Start isEmpty. Operand 6148 states and 8702 transitions. [2022-07-21 10:53:54,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2022-07-21 10:53:54,926 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:53:54,926 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-21 10:53:54,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 10:53:54,927 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:53:54,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:53:54,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1812933429, now seen corresponding path program 1 times [2022-07-21 10:53:54,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:53:54,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943448251] [2022-07-21 10:53:54,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:53:54,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:53:54,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:53:55,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:53:55,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:53:55,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:53:55,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:53:55,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:53:55,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:53:55,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:53:55,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:53:55,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:53:55,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:53:55,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:53:55,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:53:55,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:53:55,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:53:55,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:53:55,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:53:55,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:53:55,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:53:55,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:53:55,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:53:55,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:53:55,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:53:55,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:53:55,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-21 10:53:55,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-21 10:53:55,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-21 10:53:55,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-21 10:53:55,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:53:55,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:53:55,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-07-21 10:53:55,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-21 10:53:55,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-07-21 10:53:55,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-21 10:53:55,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-07-21 10:53:55,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:53:55,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-07-21 10:53:55,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:53:55,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 10:53:55,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-07-21 10:53:55,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-07-21 10:53:55,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2022-07-21 10:53:55,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:55,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1373 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 1341 trivial. 0 not checked. [2022-07-21 10:53:55,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:53:55,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943448251] [2022-07-21 10:53:55,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943448251] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:53:55,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:53:55,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-21 10:53:55,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767775678] [2022-07-21 10:53:55,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:53:55,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 10:53:55,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:53:55,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 10:53:55,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-07-21 10:53:55,300 INFO L87 Difference]: Start difference. First operand 6148 states and 8702 transitions. Second operand has 10 states, 10 states have (on average 14.9) internal successors, (149), 3 states have internal predecessors, (149), 2 states have call successors, (43), 9 states have call predecessors, (43), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-07-21 10:53:59,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:53:59,428 INFO L93 Difference]: Finished difference Result 10119 states and 14590 transitions. [2022-07-21 10:53:59,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 10:53:59,428 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.9) internal successors, (149), 3 states have internal predecessors, (149), 2 states have call successors, (43), 9 states have call predecessors, (43), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 332 [2022-07-21 10:53:59,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:53:59,440 INFO L225 Difference]: With dead ends: 10119 [2022-07-21 10:53:59,440 INFO L226 Difference]: Without dead ends: 4034 [2022-07-21 10:53:59,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2022-07-21 10:53:59,456 INFO L413 NwaCegarLoop]: 1457 mSDtfsCounter, 1695 mSDsluCounter, 4484 mSDsCounter, 0 mSdLazyCounter, 3940 mSolverCounterSat, 1809 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1764 SdHoareTripleChecker+Valid, 5941 SdHoareTripleChecker+Invalid, 5749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1809 IncrementalHoareTripleChecker+Valid, 3940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-07-21 10:53:59,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1764 Valid, 5941 Invalid, 5749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1809 Valid, 3940 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-07-21 10:53:59,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4034 states. [2022-07-21 10:53:59,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4034 to 3596. [2022-07-21 10:53:59,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3596 states, 2620 states have (on average 1.3458015267175572) internal successors, (3526), 2648 states have internal predecessors, (3526), 745 states have call successors, (745), 217 states have call predecessors, (745), 230 states have return successors, (810), 751 states have call predecessors, (810), 744 states have call successors, (810) [2022-07-21 10:53:59,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3596 states to 3596 states and 5081 transitions. [2022-07-21 10:53:59,570 INFO L78 Accepts]: Start accepts. Automaton has 3596 states and 5081 transitions. Word has length 332 [2022-07-21 10:53:59,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:53:59,571 INFO L495 AbstractCegarLoop]: Abstraction has 3596 states and 5081 transitions. [2022-07-21 10:53:59,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.9) internal successors, (149), 3 states have internal predecessors, (149), 2 states have call successors, (43), 9 states have call predecessors, (43), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-07-21 10:53:59,571 INFO L276 IsEmpty]: Start isEmpty. Operand 3596 states and 5081 transitions. [2022-07-21 10:53:59,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2022-07-21 10:53:59,584 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:53:59,584 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:53:59,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 10:53:59,585 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:53:59,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:53:59,585 INFO L85 PathProgramCache]: Analyzing trace with hash -441968209, now seen corresponding path program 1 times [2022-07-21 10:53:59,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:53:59,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45950869] [2022-07-21 10:53:59,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:53:59,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:53:59,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:53:59,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:53:59,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:53:59,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:53:59,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:53:59,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:53:59,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:53:59,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:53:59,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:53:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:53:59,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:53:59,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:53:59,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:53:59,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:53:59,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:53:59,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:53:59,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:53:59,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:53:59,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:53:59,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:53:59,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:53:59,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:53:59,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:53:59,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:53:59,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-21 10:53:59,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-21 10:53:59,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-21 10:53:59,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-21 10:53:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-21 10:53:59,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-21 10:53:59,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-21 10:53:59,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-21 10:53:59,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 10:53:59,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-21 10:53:59,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-21 10:53:59,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-21 10:53:59,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-21 10:53:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-21 10:53:59,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-21 10:53:59,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-07-21 10:53:59,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:53:59,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:53:59,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-07-21 10:53:59,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-07-21 10:53:59,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2022-07-21 10:53:59,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2022-07-21 10:53:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-07-21 10:53:59,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:53:59,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-21 10:53:59,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:53:59,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 10:53:59,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:53:59,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2022-07-21 10:54:00,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:00,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-07-21 10:54:00,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:00,015 INFO L134 CoverageAnalysis]: Checked inductivity of 2727 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2705 trivial. 0 not checked. [2022-07-21 10:54:00,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:54:00,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45950869] [2022-07-21 10:54:00,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45950869] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:54:00,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:54:00,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 10:54:00,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407093848] [2022-07-21 10:54:00,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:54:00,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 10:54:00,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:54:00,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 10:54:00,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-21 10:54:00,018 INFO L87 Difference]: Start difference. First operand 3596 states and 5081 transitions. Second operand has 11 states, 11 states have (on average 14.727272727272727) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (54), 9 states have call predecessors, (54), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-07-21 10:54:04,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:54:04,136 INFO L93 Difference]: Finished difference Result 8752 states and 13117 transitions. [2022-07-21 10:54:04,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 10:54:04,137 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 14.727272727272727) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (54), 9 states have call predecessors, (54), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 400 [2022-07-21 10:54:04,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:54:04,156 INFO L225 Difference]: With dead ends: 8752 [2022-07-21 10:54:04,157 INFO L226 Difference]: Without dead ends: 5645 [2022-07-21 10:54:04,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-21 10:54:04,169 INFO L413 NwaCegarLoop]: 1889 mSDtfsCounter, 2353 mSDsluCounter, 4714 mSDsCounter, 0 mSdLazyCounter, 3635 mSolverCounterSat, 1703 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2499 SdHoareTripleChecker+Valid, 6603 SdHoareTripleChecker+Invalid, 5338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1703 IncrementalHoareTripleChecker+Valid, 3635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-07-21 10:54:04,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2499 Valid, 6603 Invalid, 5338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1703 Valid, 3635 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-07-21 10:54:04,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5645 states. [2022-07-21 10:54:04,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5645 to 3600. [2022-07-21 10:54:04,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3600 states, 2624 states have (on average 1.3452743902439024) internal successors, (3530), 2652 states have internal predecessors, (3530), 745 states have call successors, (745), 217 states have call predecessors, (745), 230 states have return successors, (810), 751 states have call predecessors, (810), 744 states have call successors, (810) [2022-07-21 10:54:04,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3600 states to 3600 states and 5085 transitions. [2022-07-21 10:54:04,321 INFO L78 Accepts]: Start accepts. Automaton has 3600 states and 5085 transitions. Word has length 400 [2022-07-21 10:54:04,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:54:04,322 INFO L495 AbstractCegarLoop]: Abstraction has 3600 states and 5085 transitions. [2022-07-21 10:54:04,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 14.727272727272727) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (54), 9 states have call predecessors, (54), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-07-21 10:54:04,322 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 5085 transitions. [2022-07-21 10:54:04,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2022-07-21 10:54:04,387 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:54:04,387 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:54:04,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 10:54:04,388 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:54:04,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:54:04,389 INFO L85 PathProgramCache]: Analyzing trace with hash 218678581, now seen corresponding path program 1 times [2022-07-21 10:54:04,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:54:04,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690931616] [2022-07-21 10:54:04,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:54:04,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:54:04,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:54:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:54:04,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:54:04,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:54:04,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:54:04,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:54:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:54:04,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:54:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:54:04,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:54:04,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:54:04,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:54:04,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:54:04,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:54:04,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:54:04,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:54:04,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:54:04,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:54:04,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:54:04,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:54:04,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:54:04,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:54:04,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:54:04,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:54:04,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-21 10:54:04,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-21 10:54:04,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-21 10:54:04,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-21 10:54:04,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-21 10:54:04,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-21 10:54:04,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-21 10:54:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-21 10:54:04,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 10:54:04,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-21 10:54:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-21 10:54:04,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-21 10:54:04,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-21 10:54:04,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-21 10:54:04,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-21 10:54:04,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-07-21 10:54:04,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:04,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:04,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-07-21 10:54:04,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-07-21 10:54:04,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2022-07-21 10:54:04,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:04,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-07-21 10:54:04,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-07-21 10:54:04,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:04,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-21 10:54:04,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-07-21 10:54:04,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-07-21 10:54:04,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2022-07-21 10:54:04,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-07-21 10:54:04,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2022-07-21 10:54:04,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2022-07-21 10:54:04,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:04,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-07-21 10:54:04,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:04,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 10:54:04,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2022-07-21 10:54:04,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2022-07-21 10:54:04,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:04,893 INFO L134 CoverageAnalysis]: Checked inductivity of 2780 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2758 trivial. 0 not checked. [2022-07-21 10:54:04,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:54:04,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690931616] [2022-07-21 10:54:04,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690931616] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:54:04,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:54:04,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 10:54:04,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232469679] [2022-07-21 10:54:04,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:54:04,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 10:54:04,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:54:04,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 10:54:04,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-07-21 10:54:04,896 INFO L87 Difference]: Start difference. First operand 3600 states and 5085 transitions. Second operand has 12 states, 12 states have (on average 15.583333333333334) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (62), 9 states have call predecessors, (62), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2022-07-21 10:54:09,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:54:09,222 INFO L93 Difference]: Finished difference Result 9663 states and 14650 transitions. [2022-07-21 10:54:09,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 10:54:09,226 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 15.583333333333334) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (62), 9 states have call predecessors, (62), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 458 [2022-07-21 10:54:09,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:54:09,246 INFO L225 Difference]: With dead ends: 9663 [2022-07-21 10:54:09,247 INFO L226 Difference]: Without dead ends: 6552 [2022-07-21 10:54:09,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2022-07-21 10:54:09,257 INFO L413 NwaCegarLoop]: 2265 mSDtfsCounter, 3130 mSDsluCounter, 8235 mSDsCounter, 0 mSdLazyCounter, 5476 mSolverCounterSat, 1949 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3279 SdHoareTripleChecker+Valid, 10500 SdHoareTripleChecker+Invalid, 7425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1949 IncrementalHoareTripleChecker+Valid, 5476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-07-21 10:54:09,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3279 Valid, 10500 Invalid, 7425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1949 Valid, 5476 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-07-21 10:54:09,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6552 states. [2022-07-21 10:54:09,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6552 to 3606. [2022-07-21 10:54:09,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3606 states, 2630 states have (on average 1.3444866920152092) internal successors, (3536), 2658 states have internal predecessors, (3536), 745 states have call successors, (745), 217 states have call predecessors, (745), 230 states have return successors, (810), 751 states have call predecessors, (810), 744 states have call successors, (810) [2022-07-21 10:54:09,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3606 states to 3606 states and 5091 transitions. [2022-07-21 10:54:09,427 INFO L78 Accepts]: Start accepts. Automaton has 3606 states and 5091 transitions. Word has length 458 [2022-07-21 10:54:09,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:54:09,429 INFO L495 AbstractCegarLoop]: Abstraction has 3606 states and 5091 transitions. [2022-07-21 10:54:09,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.583333333333334) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (62), 9 states have call predecessors, (62), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2022-07-21 10:54:09,429 INFO L276 IsEmpty]: Start isEmpty. Operand 3606 states and 5091 transitions. [2022-07-21 10:54:09,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2022-07-21 10:54:09,441 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:54:09,441 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:54:09,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 10:54:09,441 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:54:09,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:54:09,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1282570820, now seen corresponding path program 1 times [2022-07-21 10:54:09,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:54:09,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400361823] [2022-07-21 10:54:09,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:54:09,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:54:09,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:54:09,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:54:09,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:54:09,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:54:09,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:54:09,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:54:09,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:54:09,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:54:09,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:54:09,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:54:09,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:54:09,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:54:09,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:54:09,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:54:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:54:09,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:54:09,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:54:09,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:54:09,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:54:09,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:54:09,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:54:09,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:54:09,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:54:09,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:54:09,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-21 10:54:09,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-21 10:54:09,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-21 10:54:09,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-21 10:54:09,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-21 10:54:09,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-21 10:54:09,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-21 10:54:09,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-21 10:54:09,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 10:54:09,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-21 10:54:09,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-21 10:54:09,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-21 10:54:09,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-21 10:54:09,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-21 10:54:09,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-21 10:54:09,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-07-21 10:54:09,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:09,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:09,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-07-21 10:54:09,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-07-21 10:54:09,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2022-07-21 10:54:09,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:09,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-07-21 10:54:09,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-07-21 10:54:09,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:09,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-21 10:54:09,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-07-21 10:54:09,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-07-21 10:54:09,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-07-21 10:54:09,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2022-07-21 10:54:09,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-07-21 10:54:09,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2022-07-21 10:54:09,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:09,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2022-07-21 10:54:09,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:09,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 10:54:09,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-07-21 10:54:09,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2022-07-21 10:54:09,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:09,934 INFO L134 CoverageAnalysis]: Checked inductivity of 2780 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2758 trivial. 0 not checked. [2022-07-21 10:54:09,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:54:09,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400361823] [2022-07-21 10:54:09,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400361823] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:54:09,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:54:09,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 10:54:09,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23697693] [2022-07-21 10:54:09,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:54:09,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 10:54:09,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:54:09,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 10:54:09,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-07-21 10:54:09,937 INFO L87 Difference]: Start difference. First operand 3606 states and 5091 transitions. Second operand has 12 states, 12 states have (on average 15.75) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (62), 9 states have call predecessors, (62), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2022-07-21 10:54:15,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:54:15,112 INFO L93 Difference]: Finished difference Result 9703 states and 14702 transitions. [2022-07-21 10:54:15,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 10:54:15,113 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 15.75) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (62), 9 states have call predecessors, (62), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 460 [2022-07-21 10:54:15,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:54:15,131 INFO L225 Difference]: With dead ends: 9703 [2022-07-21 10:54:15,131 INFO L226 Difference]: Without dead ends: 6586 [2022-07-21 10:54:15,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2022-07-21 10:54:15,139 INFO L413 NwaCegarLoop]: 2303 mSDtfsCounter, 3596 mSDsluCounter, 8505 mSDsCounter, 0 mSdLazyCounter, 5369 mSolverCounterSat, 2592 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3744 SdHoareTripleChecker+Valid, 10808 SdHoareTripleChecker+Invalid, 7961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2592 IncrementalHoareTripleChecker+Valid, 5369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-07-21 10:54:15,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3744 Valid, 10808 Invalid, 7961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2592 Valid, 5369 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-07-21 10:54:15,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6586 states. [2022-07-21 10:54:15,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6586 to 3612. [2022-07-21 10:54:15,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3612 states, 2636 states have (on average 1.3437025796661608) internal successors, (3542), 2664 states have internal predecessors, (3542), 745 states have call successors, (745), 217 states have call predecessors, (745), 230 states have return successors, (810), 751 states have call predecessors, (810), 744 states have call successors, (810) [2022-07-21 10:54:15,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3612 states to 3612 states and 5097 transitions. [2022-07-21 10:54:15,298 INFO L78 Accepts]: Start accepts. Automaton has 3612 states and 5097 transitions. Word has length 460 [2022-07-21 10:54:15,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:54:15,298 INFO L495 AbstractCegarLoop]: Abstraction has 3612 states and 5097 transitions. [2022-07-21 10:54:15,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.75) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (62), 9 states have call predecessors, (62), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2022-07-21 10:54:15,299 INFO L276 IsEmpty]: Start isEmpty. Operand 3612 states and 5097 transitions. [2022-07-21 10:54:15,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2022-07-21 10:54:15,307 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:54:15,308 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:54:15,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 10:54:15,308 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:54:15,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:54:15,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1486019019, now seen corresponding path program 1 times [2022-07-21 10:54:15,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:54:15,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835418036] [2022-07-21 10:54:15,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:54:15,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:54:15,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:54:15,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:54:15,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:54:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:54:15,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:54:15,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:54:15,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:54:15,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:54:15,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:54:15,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:54:15,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:54:15,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:54:15,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:54:15,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:54:15,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:54:15,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:54:15,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:54:15,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:54:15,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:54:15,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:54:15,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:54:15,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:54:15,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:54:15,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:54:15,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-21 10:54:15,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-21 10:54:15,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-21 10:54:15,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-21 10:54:15,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-21 10:54:15,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-21 10:54:15,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-21 10:54:15,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-21 10:54:15,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 10:54:15,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-21 10:54:15,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-21 10:54:15,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-21 10:54:15,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-21 10:54:15,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-21 10:54:15,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-21 10:54:15,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-07-21 10:54:15,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:15,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:15,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-07-21 10:54:15,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-07-21 10:54:15,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2022-07-21 10:54:15,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:15,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-07-21 10:54:15,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-07-21 10:54:15,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:15,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-21 10:54:15,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-07-21 10:54:15,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-07-21 10:54:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2022-07-21 10:54:15,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2022-07-21 10:54:15,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2022-07-21 10:54:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-07-21 10:54:15,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:15,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2022-07-21 10:54:15,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:15,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 10:54:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2022-07-21 10:54:15,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2022-07-21 10:54:15,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:15,922 INFO L134 CoverageAnalysis]: Checked inductivity of 2780 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 2748 trivial. 0 not checked. [2022-07-21 10:54:15,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:54:15,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835418036] [2022-07-21 10:54:15,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835418036] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:54:15,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94301666] [2022-07-21 10:54:15,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:54:15,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:54:15,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:54:15,929 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:54:15,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-21 10:54:16,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:16,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 4432 conjuncts, 59 conjunts are in the unsatisfiable core [2022-07-21 10:54:17,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:54:17,262 INFO L134 CoverageAnalysis]: Checked inductivity of 2780 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 2724 trivial. 0 not checked. [2022-07-21 10:54:17,263 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:54:17,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [94301666] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:54:17,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:54:17,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 19 [2022-07-21 10:54:17,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540639425] [2022-07-21 10:54:17,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:54:17,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 10:54:17,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:54:17,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 10:54:17,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2022-07-21 10:54:17,266 INFO L87 Difference]: Start difference. First operand 3612 states and 5097 transitions. Second operand has 10 states, 10 states have (on average 19.6) internal successors, (196), 7 states have internal predecessors, (196), 2 states have call successors, (62), 2 states have call predecessors, (62), 5 states have return successors, (61), 5 states have call predecessors, (61), 2 states have call successors, (61) [2022-07-21 10:54:17,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:54:17,582 INFO L93 Difference]: Finished difference Result 7546 states and 10805 transitions. [2022-07-21 10:54:17,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 10:54:17,583 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 19.6) internal successors, (196), 7 states have internal predecessors, (196), 2 states have call successors, (62), 2 states have call predecessors, (62), 5 states have return successors, (61), 5 states have call predecessors, (61), 2 states have call successors, (61) Word has length 462 [2022-07-21 10:54:17,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:54:17,602 INFO L225 Difference]: With dead ends: 7546 [2022-07-21 10:54:17,602 INFO L226 Difference]: Without dead ends: 4423 [2022-07-21 10:54:17,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 592 GetRequests, 573 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2022-07-21 10:54:17,614 INFO L413 NwaCegarLoop]: 1969 mSDtfsCounter, 286 mSDsluCounter, 15372 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 17341 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 10:54:17,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 17341 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 10:54:17,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4423 states. [2022-07-21 10:54:17,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4423 to 3632. [2022-07-21 10:54:17,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3632 states, 2651 states have (on average 1.3417578272350057) internal successors, (3557), 2678 states have internal predecessors, (3557), 745 states have call successors, (745), 217 states have call predecessors, (745), 235 states have return successors, (825), 757 states have call predecessors, (825), 744 states have call successors, (825) [2022-07-21 10:54:17,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3632 states to 3632 states and 5127 transitions. [2022-07-21 10:54:17,769 INFO L78 Accepts]: Start accepts. Automaton has 3632 states and 5127 transitions. Word has length 462 [2022-07-21 10:54:17,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:54:17,770 INFO L495 AbstractCegarLoop]: Abstraction has 3632 states and 5127 transitions. [2022-07-21 10:54:17,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 19.6) internal successors, (196), 7 states have internal predecessors, (196), 2 states have call successors, (62), 2 states have call predecessors, (62), 5 states have return successors, (61), 5 states have call predecessors, (61), 2 states have call successors, (61) [2022-07-21 10:54:17,771 INFO L276 IsEmpty]: Start isEmpty. Operand 3632 states and 5127 transitions. [2022-07-21 10:54:17,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2022-07-21 10:54:17,780 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:54:17,780 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:54:17,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-21 10:54:18,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-21 10:54:18,004 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:54:18,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:54:18,005 INFO L85 PathProgramCache]: Analyzing trace with hash 983297457, now seen corresponding path program 1 times [2022-07-21 10:54:18,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:54:18,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638633445] [2022-07-21 10:54:18,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:54:18,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:54:18,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:54:18,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:54:18,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:54:18,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:54:18,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:54:18,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:54:18,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:54:18,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:54:18,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:54:18,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:54:18,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:54:18,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:54:18,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:54:18,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:54:18,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:54:18,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:54:18,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:54:18,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:54:18,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:54:18,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:54:18,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:54:18,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:54:18,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:54:18,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:54:18,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-21 10:54:18,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-21 10:54:18,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-21 10:54:18,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-21 10:54:18,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-21 10:54:18,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-21 10:54:18,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-21 10:54:18,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-21 10:54:18,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 10:54:18,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-21 10:54:18,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-21 10:54:18,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-21 10:54:18,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-21 10:54:18,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-21 10:54:18,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-21 10:54:18,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-07-21 10:54:18,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:18,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:18,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:54:18,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-07-21 10:54:18,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-07-21 10:54:18,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-07-21 10:54:18,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:18,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-07-21 10:54:18,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-07-21 10:54:18,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2022-07-21 10:54:18,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-07-21 10:54:18,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-07-21 10:54:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-07-21 10:54:18,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2022-07-21 10:54:18,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-07-21 10:54:18,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2022-07-21 10:54:18,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:18,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2022-07-21 10:54:18,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:18,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 10:54:18,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-07-21 10:54:18,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2022-07-21 10:54:18,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:18,547 INFO L134 CoverageAnalysis]: Checked inductivity of 2780 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 2748 trivial. 0 not checked. [2022-07-21 10:54:18,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:54:18,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638633445] [2022-07-21 10:54:18,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638633445] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:54:18,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112143133] [2022-07-21 10:54:18,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:54:18,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:54:18,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:54:18,568 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:54:18,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-21 10:54:19,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:19,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 4458 conjuncts, 19 conjunts are in the unsatisfiable core [2022-07-21 10:54:19,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:54:19,681 INFO L134 CoverageAnalysis]: Checked inductivity of 2780 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 2738 trivial. 0 not checked. [2022-07-21 10:54:19,681 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:54:19,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [112143133] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:54:19,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:54:19,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 12 [2022-07-21 10:54:19,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715907950] [2022-07-21 10:54:19,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:54:19,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 10:54:19,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:54:19,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 10:54:19,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-07-21 10:54:19,683 INFO L87 Difference]: Start difference. First operand 3632 states and 5127 transitions. Second operand has 5 states, 5 states have (on average 39.8) internal successors, (199), 4 states have internal predecessors, (199), 2 states have call successors, (63), 2 states have call predecessors, (63), 3 states have return successors, (62), 3 states have call predecessors, (62), 2 states have call successors, (62) [2022-07-21 10:54:19,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:54:19,832 INFO L93 Difference]: Finished difference Result 6779 states and 9566 transitions. [2022-07-21 10:54:19,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 10:54:19,833 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 4 states have internal predecessors, (199), 2 states have call successors, (63), 2 states have call predecessors, (63), 3 states have return successors, (62), 3 states have call predecessors, (62), 2 states have call successors, (62) Word has length 468 [2022-07-21 10:54:19,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:54:19,846 INFO L225 Difference]: With dead ends: 6779 [2022-07-21 10:54:19,846 INFO L226 Difference]: Without dead ends: 3632 [2022-07-21 10:54:19,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 599 GetRequests, 587 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-07-21 10:54:19,865 INFO L413 NwaCegarLoop]: 1587 mSDtfsCounter, 0 mSDsluCounter, 4750 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6337 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:54:19,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6337 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 10:54:19,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3632 states. [2022-07-21 10:54:20,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3632 to 3632. [2022-07-21 10:54:20,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3632 states, 2651 states have (on average 1.3417578272350057) internal successors, (3557), 2678 states have internal predecessors, (3557), 745 states have call successors, (745), 217 states have call predecessors, (745), 235 states have return successors, (823), 757 states have call predecessors, (823), 744 states have call successors, (823) [2022-07-21 10:54:20,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3632 states to 3632 states and 5125 transitions. [2022-07-21 10:54:20,056 INFO L78 Accepts]: Start accepts. Automaton has 3632 states and 5125 transitions. Word has length 468 [2022-07-21 10:54:20,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:54:20,057 INFO L495 AbstractCegarLoop]: Abstraction has 3632 states and 5125 transitions. [2022-07-21 10:54:20,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 4 states have internal predecessors, (199), 2 states have call successors, (63), 2 states have call predecessors, (63), 3 states have return successors, (62), 3 states have call predecessors, (62), 2 states have call successors, (62) [2022-07-21 10:54:20,057 INFO L276 IsEmpty]: Start isEmpty. Operand 3632 states and 5125 transitions. [2022-07-21 10:54:20,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2022-07-21 10:54:20,066 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:54:20,066 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 6, 6, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:54:20,094 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-07-21 10:54:20,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-07-21 10:54:20,280 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:54:20,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:54:20,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1043309421, now seen corresponding path program 2 times [2022-07-21 10:54:20,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:54:20,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867587828] [2022-07-21 10:54:20,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:54:20,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:54:20,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:54:20,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:54:20,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:54:20,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:54:20,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:54:20,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:54:20,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:54:20,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:54:20,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:54:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:54:20,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:54:20,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:54:20,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:54:20,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:54:20,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:54:20,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:54:20,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:54:20,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:54:20,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:54:20,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:54:20,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:54:20,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:54:20,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:54:20,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:54:20,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-21 10:54:20,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-21 10:54:20,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-21 10:54:20,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-21 10:54:20,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-21 10:54:20,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-21 10:54:20,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-21 10:54:20,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-21 10:54:20,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 10:54:20,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-21 10:54:20,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-21 10:54:20,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-21 10:54:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-21 10:54:20,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-21 10:54:20,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-21 10:54:20,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:54:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-07-21 10:54:20,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:20,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:20,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:54:20,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-07-21 10:54:20,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-07-21 10:54:20,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-07-21 10:54:20,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:20,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-07-21 10:54:20,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-21 10:54:20,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:20,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2022-07-21 10:54:20,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-07-21 10:54:20,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-07-21 10:54:20,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2022-07-21 10:54:20,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-07-21 10:54:20,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2022-07-21 10:54:20,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2022-07-21 10:54:20,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:20,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-07-21 10:54:20,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:20,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 10:54:20,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2022-07-21 10:54:20,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2022-07-21 10:54:20,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:20,793 INFO L134 CoverageAnalysis]: Checked inductivity of 2786 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2764 trivial. 0 not checked. [2022-07-21 10:54:20,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:54:20,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867587828] [2022-07-21 10:54:20,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867587828] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:54:20,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:54:20,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 10:54:20,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132125746] [2022-07-21 10:54:20,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:54:20,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 10:54:20,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:54:20,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 10:54:20,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-21 10:54:20,796 INFO L87 Difference]: Start difference. First operand 3632 states and 5125 transitions. Second operand has 11 states, 11 states have (on average 17.818181818181817) internal successors, (196), 4 states have internal predecessors, (196), 2 states have call successors, (63), 9 states have call predecessors, (63), 1 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2022-07-21 10:54:25,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:54:25,545 INFO L93 Difference]: Finished difference Result 8025 states and 11832 transitions. [2022-07-21 10:54:25,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 10:54:25,546 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 17.818181818181817) internal successors, (196), 4 states have internal predecessors, (196), 2 states have call successors, (63), 9 states have call predecessors, (63), 1 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) Word has length 474 [2022-07-21 10:54:25,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:54:25,564 INFO L225 Difference]: With dead ends: 8025 [2022-07-21 10:54:25,564 INFO L226 Difference]: Without dead ends: 4882 [2022-07-21 10:54:25,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-21 10:54:25,574 INFO L413 NwaCegarLoop]: 1842 mSDtfsCounter, 2356 mSDsluCounter, 6120 mSDsCounter, 0 mSdLazyCounter, 4561 mSolverCounterSat, 2013 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2425 SdHoareTripleChecker+Valid, 7962 SdHoareTripleChecker+Invalid, 6574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2013 IncrementalHoareTripleChecker+Valid, 4561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-07-21 10:54:25,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2425 Valid, 7962 Invalid, 6574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2013 Valid, 4561 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-07-21 10:54:25,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4882 states. [2022-07-21 10:54:25,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4882 to 3636. [2022-07-21 10:54:25,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3636 states, 2655 states have (on average 1.3412429378531074) internal successors, (3561), 2682 states have internal predecessors, (3561), 745 states have call successors, (745), 217 states have call predecessors, (745), 235 states have return successors, (823), 757 states have call predecessors, (823), 744 states have call successors, (823) [2022-07-21 10:54:25,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3636 states to 3636 states and 5129 transitions. [2022-07-21 10:54:25,735 INFO L78 Accepts]: Start accepts. Automaton has 3636 states and 5129 transitions. Word has length 474 [2022-07-21 10:54:25,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:54:25,735 INFO L495 AbstractCegarLoop]: Abstraction has 3636 states and 5129 transitions. [2022-07-21 10:54:25,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 17.818181818181817) internal successors, (196), 4 states have internal predecessors, (196), 2 states have call successors, (63), 9 states have call predecessors, (63), 1 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2022-07-21 10:54:25,736 INFO L276 IsEmpty]: Start isEmpty. Operand 3636 states and 5129 transitions. [2022-07-21 10:54:25,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2022-07-21 10:54:25,745 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:54:25,745 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 6, 6, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:54:25,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-21 10:54:25,746 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:54:25,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:54:25,746 INFO L85 PathProgramCache]: Analyzing trace with hash -685530874, now seen corresponding path program 1 times [2022-07-21 10:54:25,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:54:25,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642145399] [2022-07-21 10:54:25,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:54:25,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:54:25,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:25,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:54:25,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:25,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:54:25,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:25,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:54:25,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:25,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:54:25,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:25,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:54:25,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:25,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:54:25,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:25,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:54:25,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:25,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:54:25,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:25,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:54:25,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:25,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:54:25,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:25,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:54:25,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:25,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:54:25,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:25,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:54:25,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:25,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:54:25,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:54:26,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:54:26,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:54:26,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:54:26,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:54:26,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:54:26,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:54:26,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:54:26,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:54:26,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:54:26,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-21 10:54:26,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-21 10:54:26,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-21 10:54:26,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-21 10:54:26,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-21 10:54:26,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-21 10:54:26,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-21 10:54:26,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-21 10:54:26,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 10:54:26,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-21 10:54:26,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-21 10:54:26,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-21 10:54:26,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-21 10:54:26,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-21 10:54:26,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-21 10:54:26,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:54:26,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-07-21 10:54:26,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:26,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:54:26,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-07-21 10:54:26,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-07-21 10:54:26,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-07-21 10:54:26,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2022-07-21 10:54:26,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:26,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-07-21 10:54:26,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2022-07-21 10:54:26,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:26,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2022-07-21 10:54:26,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-07-21 10:54:26,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-07-21 10:54:26,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2022-07-21 10:54:26,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2022-07-21 10:54:26,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2022-07-21 10:54:26,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-07-21 10:54:26,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:26,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2022-07-21 10:54:26,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:26,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 10:54:26,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2022-07-21 10:54:26,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2022-07-21 10:54:26,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:26,321 INFO L134 CoverageAnalysis]: Checked inductivity of 2786 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2764 trivial. 0 not checked. [2022-07-21 10:54:26,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:54:26,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642145399] [2022-07-21 10:54:26,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642145399] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:54:26,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:54:26,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-21 10:54:26,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90691631] [2022-07-21 10:54:26,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:54:26,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 10:54:26,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:54:26,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 10:54:26,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-07-21 10:54:26,323 INFO L87 Difference]: Start difference. First operand 3636 states and 5129 transitions. Second operand has 10 states, 10 states have (on average 20.6) internal successors, (206), 3 states have internal predecessors, (206), 2 states have call successors, (64), 9 states have call predecessors, (64), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2022-07-21 10:54:30,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:54:30,514 INFO L93 Difference]: Finished difference Result 7202 states and 10433 transitions. [2022-07-21 10:54:30,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 10:54:30,515 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 20.6) internal successors, (206), 3 states have internal predecessors, (206), 2 states have call successors, (64), 9 states have call predecessors, (64), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) Word has length 486 [2022-07-21 10:54:30,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:54:30,537 INFO L225 Difference]: With dead ends: 7202 [2022-07-21 10:54:30,537 INFO L226 Difference]: Without dead ends: 4055 [2022-07-21 10:54:30,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2022-07-21 10:54:30,549 INFO L413 NwaCegarLoop]: 1441 mSDtfsCounter, 1186 mSDsluCounter, 4315 mSDsCounter, 0 mSdLazyCounter, 4070 mSolverCounterSat, 1173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1255 SdHoareTripleChecker+Valid, 5756 SdHoareTripleChecker+Invalid, 5243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1173 IncrementalHoareTripleChecker+Valid, 4070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-07-21 10:54:30,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1255 Valid, 5756 Invalid, 5243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1173 Valid, 4070 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-07-21 10:54:30,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4055 states. [2022-07-21 10:54:30,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4055 to 3638. [2022-07-21 10:54:30,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3638 states, 2657 states have (on average 1.3409860745201354) internal successors, (3563), 2684 states have internal predecessors, (3563), 745 states have call successors, (745), 217 states have call predecessors, (745), 235 states have return successors, (823), 757 states have call predecessors, (823), 744 states have call successors, (823) [2022-07-21 10:54:30,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3638 states to 3638 states and 5131 transitions. [2022-07-21 10:54:30,782 INFO L78 Accepts]: Start accepts. Automaton has 3638 states and 5131 transitions. Word has length 486 [2022-07-21 10:54:30,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:54:30,782 INFO L495 AbstractCegarLoop]: Abstraction has 3638 states and 5131 transitions. [2022-07-21 10:54:30,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 20.6) internal successors, (206), 3 states have internal predecessors, (206), 2 states have call successors, (64), 9 states have call predecessors, (64), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2022-07-21 10:54:30,783 INFO L276 IsEmpty]: Start isEmpty. Operand 3638 states and 5131 transitions. [2022-07-21 10:54:30,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2022-07-21 10:54:30,793 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:54:30,794 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 6, 6, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:54:30,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-21 10:54:30,794 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:54:30,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:54:30,795 INFO L85 PathProgramCache]: Analyzing trace with hash 100467016, now seen corresponding path program 1 times [2022-07-21 10:54:30,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:54:30,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54780204] [2022-07-21 10:54:30,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:54:30,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:54:30,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:54:31,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:54:31,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:54:31,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:54:31,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:54:31,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:54:31,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:54:31,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:54:31,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:54:31,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:54:31,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:54:31,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:54:31,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:54:31,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:54:31,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:54:31,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:54:31,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:54:31,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:54:31,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:54:31,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:54:31,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:54:31,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:54:31,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:54:31,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:54:31,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-21 10:54:31,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-21 10:54:31,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-21 10:54:31,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-21 10:54:31,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-21 10:54:31,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-21 10:54:31,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-21 10:54:31,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-21 10:54:31,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 10:54:31,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-21 10:54:31,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-21 10:54:31,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-21 10:54:31,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-21 10:54:31,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-21 10:54:31,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-21 10:54:31,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:54:31,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-07-21 10:54:31,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:31,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:31,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:54:31,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-07-21 10:54:31,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-07-21 10:54:31,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-07-21 10:54:31,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2022-07-21 10:54:31,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:31,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-07-21 10:54:31,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2022-07-21 10:54:31,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:31,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2022-07-21 10:54:31,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-07-21 10:54:31,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-07-21 10:54:31,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2022-07-21 10:54:31,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2022-07-21 10:54:31,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2022-07-21 10:54:31,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-07-21 10:54:31,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:31,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2022-07-21 10:54:31,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 10:54:31,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2022-07-21 10:54:31,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2022-07-21 10:54:31,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:31,396 INFO L134 CoverageAnalysis]: Checked inductivity of 2786 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 2754 trivial. 0 not checked. [2022-07-21 10:54:31,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:54:31,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54780204] [2022-07-21 10:54:31,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54780204] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:54:31,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:54:31,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 10:54:31,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707632989] [2022-07-21 10:54:31,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:54:31,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 10:54:31,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:54:31,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 10:54:31,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-07-21 10:54:31,398 INFO L87 Difference]: Start difference. First operand 3638 states and 5131 transitions. Second operand has 12 states, 12 states have (on average 17.333333333333332) internal successors, (208), 4 states have internal predecessors, (208), 3 states have call successors, (64), 9 states have call predecessors, (64), 3 states have return successors, (63), 4 states have call predecessors, (63), 3 states have call successors, (63) [2022-07-21 10:54:36,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:54:36,172 INFO L93 Difference]: Finished difference Result 7201 states and 10431 transitions. [2022-07-21 10:54:36,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 10:54:36,172 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 17.333333333333332) internal successors, (208), 4 states have internal predecessors, (208), 3 states have call successors, (64), 9 states have call predecessors, (64), 3 states have return successors, (63), 4 states have call predecessors, (63), 3 states have call successors, (63) Word has length 486 [2022-07-21 10:54:36,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:54:36,186 INFO L225 Difference]: With dead ends: 7201 [2022-07-21 10:54:36,187 INFO L226 Difference]: Without dead ends: 4052 [2022-07-21 10:54:36,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2022-07-21 10:54:36,195 INFO L413 NwaCegarLoop]: 1435 mSDtfsCounter, 1502 mSDsluCounter, 4874 mSDsCounter, 0 mSdLazyCounter, 4485 mSolverCounterSat, 1569 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1571 SdHoareTripleChecker+Valid, 6309 SdHoareTripleChecker+Invalid, 6054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1569 IncrementalHoareTripleChecker+Valid, 4485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-07-21 10:54:36,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1571 Valid, 6309 Invalid, 6054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1569 Valid, 4485 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-07-21 10:54:36,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4052 states. [2022-07-21 10:54:36,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4052 to 3643. [2022-07-21 10:54:36,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3643 states, 2661 states have (on average 1.3404735062006765) internal successors, (3567), 2687 states have internal predecessors, (3567), 746 states have call successors, (746), 217 states have call predecessors, (746), 235 states have return successors, (824), 759 states have call predecessors, (824), 745 states have call successors, (824) [2022-07-21 10:54:36,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3643 states to 3643 states and 5137 transitions. [2022-07-21 10:54:36,438 INFO L78 Accepts]: Start accepts. Automaton has 3643 states and 5137 transitions. Word has length 486 [2022-07-21 10:54:36,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:54:36,438 INFO L495 AbstractCegarLoop]: Abstraction has 3643 states and 5137 transitions. [2022-07-21 10:54:36,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 17.333333333333332) internal successors, (208), 4 states have internal predecessors, (208), 3 states have call successors, (64), 9 states have call predecessors, (64), 3 states have return successors, (63), 4 states have call predecessors, (63), 3 states have call successors, (63) [2022-07-21 10:54:36,439 INFO L276 IsEmpty]: Start isEmpty. Operand 3643 states and 5137 transitions. [2022-07-21 10:54:36,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2022-07-21 10:54:36,449 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:54:36,449 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:54:36,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-21 10:54:36,450 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:54:36,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:54:36,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1967867468, now seen corresponding path program 2 times [2022-07-21 10:54:36,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:54:36,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143733302] [2022-07-21 10:54:36,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:54:36,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:54:36,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:54:36,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:54:36,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:54:36,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:54:36,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:54:36,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:54:36,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:54:36,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:54:36,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:54:36,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:54:36,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:54:36,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:54:36,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:54:36,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:54:36,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:54:36,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:54:36,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:54:36,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:54:36,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:54:36,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:54:36,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:54:36,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:54:36,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:54:36,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:54:36,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-21 10:54:36,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-21 10:54:36,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-21 10:54:36,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-21 10:54:36,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-21 10:54:36,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-21 10:54:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-21 10:54:36,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-21 10:54:36,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 10:54:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-21 10:54:36,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-21 10:54:36,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-21 10:54:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-21 10:54:36,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-21 10:54:36,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-21 10:54:36,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:54:36,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-07-21 10:54:36,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:36,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:36,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:54:36,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-07-21 10:54:36,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-07-21 10:54:36,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-07-21 10:54:36,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2022-07-21 10:54:36,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:36,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-07-21 10:54:36,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2022-07-21 10:54:36,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:36,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2022-07-21 10:54:36,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-07-21 10:54:36,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-07-21 10:54:36,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2022-07-21 10:54:36,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2022-07-21 10:54:36,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2022-07-21 10:54:36,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-07-21 10:54:36,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:36,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2022-07-21 10:54:36,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:36,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:54:36,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:54:36,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-07-21 10:54:36,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2022-07-21 10:54:36,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:36,990 INFO L134 CoverageAnalysis]: Checked inductivity of 2798 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 2766 trivial. 0 not checked. [2022-07-21 10:54:36,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:54:36,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143733302] [2022-07-21 10:54:36,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143733302] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:54:36,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652895900] [2022-07-21 10:54:36,991 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 10:54:36,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:54:36,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:54:37,008 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:54:37,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-21 10:54:38,192 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-21 10:54:38,192 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 10:54:38,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 4599 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-21 10:54:38,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:54:38,287 INFO L134 CoverageAnalysis]: Checked inductivity of 2798 backedges. 1248 proven. 0 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2022-07-21 10:54:38,288 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:54:38,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [652895900] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:54:38,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:54:38,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [14] total 16 [2022-07-21 10:54:38,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561647177] [2022-07-21 10:54:38,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:54:38,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 10:54:38,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:54:38,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 10:54:38,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-07-21 10:54:38,289 INFO L87 Difference]: Start difference. First operand 3643 states and 5137 transitions. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 2 states have call successors, (64), 2 states have call predecessors, (64), 3 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2022-07-21 10:54:38,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:54:38,436 INFO L93 Difference]: Finished difference Result 7238 states and 10222 transitions. [2022-07-21 10:54:38,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 10:54:38,437 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 2 states have call successors, (64), 2 states have call predecessors, (64), 3 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) Word has length 492 [2022-07-21 10:54:38,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:54:38,447 INFO L225 Difference]: With dead ends: 7238 [2022-07-21 10:54:38,447 INFO L226 Difference]: Without dead ends: 3658 [2022-07-21 10:54:38,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 631 GetRequests, 616 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2022-07-21 10:54:38,457 INFO L413 NwaCegarLoop]: 1585 mSDtfsCounter, 2 mSDsluCounter, 3166 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4751 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:54:38,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4751 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 10:54:38,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3658 states. [2022-07-21 10:54:38,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3658 to 3652. [2022-07-21 10:54:38,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3652 states, 2667 states have (on average 1.3408323959505062) internal successors, (3576), 2696 states have internal predecessors, (3576), 746 states have call successors, (746), 217 states have call predecessors, (746), 238 states have return successors, (827), 759 states have call predecessors, (827), 745 states have call successors, (827) [2022-07-21 10:54:38,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3652 states to 3652 states and 5149 transitions. [2022-07-21 10:54:38,594 INFO L78 Accepts]: Start accepts. Automaton has 3652 states and 5149 transitions. Word has length 492 [2022-07-21 10:54:38,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:54:38,594 INFO L495 AbstractCegarLoop]: Abstraction has 3652 states and 5149 transitions. [2022-07-21 10:54:38,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 2 states have call successors, (64), 2 states have call predecessors, (64), 3 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2022-07-21 10:54:38,595 INFO L276 IsEmpty]: Start isEmpty. Operand 3652 states and 5149 transitions. [2022-07-21 10:54:38,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2022-07-21 10:54:38,604 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:54:38,604 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:54:38,650 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-21 10:54:38,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:54:38,828 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:54:38,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:54:38,828 INFO L85 PathProgramCache]: Analyzing trace with hash -552781394, now seen corresponding path program 1 times [2022-07-21 10:54:38,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:54:38,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850913012] [2022-07-21 10:54:38,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:54:38,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:54:38,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:54:39,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:54:39,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:54:39,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:54:39,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:54:39,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:54:39,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:54:39,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:54:39,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:54:39,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:54:39,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:54:39,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:54:39,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:54:39,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:54:39,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:54:39,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:54:39,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:54:39,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:54:39,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:54:39,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:54:39,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:54:39,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:54:39,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:54:39,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:54:39,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-21 10:54:39,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-21 10:54:39,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-21 10:54:39,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-21 10:54:39,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-21 10:54:39,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-21 10:54:39,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-21 10:54:39,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-21 10:54:39,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-21 10:54:39,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-21 10:54:39,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-07-21 10:54:39,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-07-21 10:54:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-21 10:54:39,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-07-21 10:54:39,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-07-21 10:54:39,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:54:39,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-21 10:54:39,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:39,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:39,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:54:39,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-07-21 10:54:39,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2022-07-21 10:54:39,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-07-21 10:54:39,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-07-21 10:54:39,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:39,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2022-07-21 10:54:39,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-07-21 10:54:39,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:39,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-07-21 10:54:39,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2022-07-21 10:54:39,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-07-21 10:54:39,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-07-21 10:54:39,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-07-21 10:54:39,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-07-21 10:54:39,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-07-21 10:54:39,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:39,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2022-07-21 10:54:39,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:39,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:54:39,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:54:39,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2022-07-21 10:54:39,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 465 [2022-07-21 10:54:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:39,399 INFO L134 CoverageAnalysis]: Checked inductivity of 2799 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 2767 trivial. 0 not checked. [2022-07-21 10:54:39,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:54:39,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850913012] [2022-07-21 10:54:39,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850913012] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:54:39,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008175813] [2022-07-21 10:54:39,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:54:39,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:54:39,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:54:39,416 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:54:39,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-21 10:54:40,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:40,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 4614 conjuncts, 19 conjunts are in the unsatisfiable core [2022-07-21 10:54:40,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:54:40,580 INFO L134 CoverageAnalysis]: Checked inductivity of 2799 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 2733 trivial. 0 not checked. [2022-07-21 10:54:40,580 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:54:40,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1008175813] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:54:40,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:54:40,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2022-07-21 10:54:40,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508679373] [2022-07-21 10:54:40,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:54:40,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 10:54:40,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:54:40,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 10:54:40,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2022-07-21 10:54:40,582 INFO L87 Difference]: Start difference. First operand 3652 states and 5149 transitions. Second operand has 6 states, 5 states have (on average 42.8) internal successors, (214), 5 states have internal predecessors, (214), 3 states have call successors, (65), 2 states have call predecessors, (65), 3 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2022-07-21 10:54:40,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:54:40,815 INFO L93 Difference]: Finished difference Result 7644 states and 10929 transitions. [2022-07-21 10:54:40,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 10:54:40,816 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 42.8) internal successors, (214), 5 states have internal predecessors, (214), 3 states have call successors, (65), 2 states have call predecessors, (65), 3 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) Word has length 493 [2022-07-21 10:54:40,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:54:40,828 INFO L225 Difference]: With dead ends: 7644 [2022-07-21 10:54:40,828 INFO L226 Difference]: Without dead ends: 4481 [2022-07-21 10:54:40,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 632 GetRequests, 615 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-07-21 10:54:40,839 INFO L413 NwaCegarLoop]: 1967 mSDtfsCounter, 495 mSDsluCounter, 7248 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 9215 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:54:40,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 9215 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 10:54:40,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4481 states. [2022-07-21 10:54:40,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4481 to 3652. [2022-07-21 10:54:40,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3652 states, 2667 states have (on average 1.3400824896887888) internal successors, (3574), 2696 states have internal predecessors, (3574), 746 states have call successors, (746), 217 states have call predecessors, (746), 238 states have return successors, (827), 759 states have call predecessors, (827), 745 states have call successors, (827) [2022-07-21 10:54:40,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3652 states to 3652 states and 5147 transitions. [2022-07-21 10:54:40,997 INFO L78 Accepts]: Start accepts. Automaton has 3652 states and 5147 transitions. Word has length 493 [2022-07-21 10:54:40,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:54:40,997 INFO L495 AbstractCegarLoop]: Abstraction has 3652 states and 5147 transitions. [2022-07-21 10:54:40,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 42.8) internal successors, (214), 5 states have internal predecessors, (214), 3 states have call successors, (65), 2 states have call predecessors, (65), 3 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2022-07-21 10:54:40,998 INFO L276 IsEmpty]: Start isEmpty. Operand 3652 states and 5147 transitions. [2022-07-21 10:54:41,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2022-07-21 10:54:41,005 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:54:41,005 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:54:41,034 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-21 10:54:41,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-21 10:54:41,219 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:54:41,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:54:41,219 INFO L85 PathProgramCache]: Analyzing trace with hash 114600496, now seen corresponding path program 1 times [2022-07-21 10:54:41,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:54:41,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401254896] [2022-07-21 10:54:41,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:54:41,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:54:41,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:54:41,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:54:41,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:54:41,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:54:41,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:54:41,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:54:41,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:54:41,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:54:41,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:54:41,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:54:41,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:54:41,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:54:41,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:54:41,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:54:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:54:41,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:54:41,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:54:41,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:54:41,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:54:41,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:54:41,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:54:41,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:54:41,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:54:41,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:54:41,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-21 10:54:41,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-21 10:54:41,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-21 10:54:41,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-21 10:54:41,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-21 10:54:41,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-21 10:54:41,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-21 10:54:41,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-21 10:54:41,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-21 10:54:41,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-21 10:54:41,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-07-21 10:54:41,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-07-21 10:54:41,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-21 10:54:41,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-07-21 10:54:41,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-07-21 10:54:41,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:54:41,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-21 10:54:41,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:41,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:41,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:54:41,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-07-21 10:54:41,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2022-07-21 10:54:41,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-07-21 10:54:41,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-07-21 10:54:41,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:41,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2022-07-21 10:54:41,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-07-21 10:54:41,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:41,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-07-21 10:54:41,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2022-07-21 10:54:41,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-07-21 10:54:41,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-07-21 10:54:41,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-07-21 10:54:41,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-07-21 10:54:41,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-07-21 10:54:41,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:41,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2022-07-21 10:54:41,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:41,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:54:41,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:54:41,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2022-07-21 10:54:41,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 465 [2022-07-21 10:54:41,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:41,791 INFO L134 CoverageAnalysis]: Checked inductivity of 2799 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 2767 trivial. 0 not checked. [2022-07-21 10:54:41,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:54:41,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401254896] [2022-07-21 10:54:41,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401254896] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:54:41,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727900843] [2022-07-21 10:54:41,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:54:41,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:54:41,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:54:41,808 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:54:41,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-21 10:54:43,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:43,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 4615 conjuncts, 56 conjunts are in the unsatisfiable core [2022-07-21 10:54:43,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:54:43,512 INFO L134 CoverageAnalysis]: Checked inductivity of 2799 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 2763 trivial. 0 not checked. [2022-07-21 10:54:43,513 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:54:43,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727900843] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:54:43,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:54:43,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [14] total 23 [2022-07-21 10:54:43,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173478327] [2022-07-21 10:54:43,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:54:43,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 10:54:43,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:54:43,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 10:54:43,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2022-07-21 10:54:43,515 INFO L87 Difference]: Start difference. First operand 3652 states and 5147 transitions. Second operand has 11 states, 11 states have (on average 19.09090909090909) internal successors, (210), 9 states have internal predecessors, (210), 4 states have call successors, (65), 2 states have call predecessors, (65), 4 states have return successors, (64), 6 states have call predecessors, (64), 4 states have call successors, (64) [2022-07-21 10:54:44,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:54:44,867 INFO L93 Difference]: Finished difference Result 8056 states and 11567 transitions. [2022-07-21 10:54:44,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-21 10:54:44,868 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 19.09090909090909) internal successors, (210), 9 states have internal predecessors, (210), 4 states have call successors, (65), 2 states have call predecessors, (65), 4 states have return successors, (64), 6 states have call predecessors, (64), 4 states have call successors, (64) Word has length 493 [2022-07-21 10:54:44,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:54:44,881 INFO L225 Difference]: With dead ends: 8056 [2022-07-21 10:54:44,881 INFO L226 Difference]: Without dead ends: 4893 [2022-07-21 10:54:44,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 642 GetRequests, 611 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=101, Invalid=955, Unknown=0, NotChecked=0, Total=1056 [2022-07-21 10:54:44,891 INFO L413 NwaCegarLoop]: 3149 mSDtfsCounter, 3072 mSDsluCounter, 27292 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3184 SdHoareTripleChecker+Valid, 30441 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 10:54:44,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3184 Valid, 30441 Invalid, 1361 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [248 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 10:54:44,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4893 states. [2022-07-21 10:54:45,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4893 to 3652. [2022-07-21 10:54:45,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3652 states, 2667 states have (on average 1.3397075365579303) internal successors, (3573), 2696 states have internal predecessors, (3573), 746 states have call successors, (746), 217 states have call predecessors, (746), 238 states have return successors, (827), 759 states have call predecessors, (827), 745 states have call successors, (827) [2022-07-21 10:54:45,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3652 states to 3652 states and 5146 transitions. [2022-07-21 10:54:45,063 INFO L78 Accepts]: Start accepts. Automaton has 3652 states and 5146 transitions. Word has length 493 [2022-07-21 10:54:45,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:54:45,063 INFO L495 AbstractCegarLoop]: Abstraction has 3652 states and 5146 transitions. [2022-07-21 10:54:45,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 19.09090909090909) internal successors, (210), 9 states have internal predecessors, (210), 4 states have call successors, (65), 2 states have call predecessors, (65), 4 states have return successors, (64), 6 states have call predecessors, (64), 4 states have call successors, (64) [2022-07-21 10:54:45,064 INFO L276 IsEmpty]: Start isEmpty. Operand 3652 states and 5146 transitions. [2022-07-21 10:54:45,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2022-07-21 10:54:45,071 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:54:45,071 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 7, 7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:54:45,098 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-07-21 10:54:45,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:54:45,296 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:54:45,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:54:45,296 INFO L85 PathProgramCache]: Analyzing trace with hash -2126322149, now seen corresponding path program 1 times [2022-07-21 10:54:45,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:54:45,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692345737] [2022-07-21 10:54:45,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:54:45,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:54:45,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:54:45,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:54:45,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:54:45,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:54:45,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:54:45,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:54:45,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:54:45,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:54:45,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:54:45,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:54:45,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:54:45,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:54:45,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:54:45,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:54:45,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:54:45,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:54:45,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:54:45,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:54:45,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:54:45,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:54:45,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:54:45,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:54:45,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:54:45,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:54:45,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-21 10:54:45,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-21 10:54:45,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-21 10:54:45,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-21 10:54:45,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-21 10:54:45,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-21 10:54:45,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-21 10:54:45,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-21 10:54:45,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-21 10:54:45,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-21 10:54:45,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-07-21 10:54:45,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-07-21 10:54:45,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-21 10:54:45,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-07-21 10:54:45,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-07-21 10:54:45,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:54:45,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-21 10:54:45,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:45,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:45,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:54:45,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-07-21 10:54:45,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2022-07-21 10:54:45,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-07-21 10:54:45,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-07-21 10:54:45,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:45,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2022-07-21 10:54:45,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-07-21 10:54:45,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:45,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-07-21 10:54:45,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2022-07-21 10:54:45,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-07-21 10:54:45,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-07-21 10:54:45,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-07-21 10:54:45,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-07-21 10:54:45,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-07-21 10:54:45,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:45,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2022-07-21 10:54:45,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:45,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:54:45,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:54:45,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-07-21 10:54:45,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-07-21 10:54:45,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:45,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 477 [2022-07-21 10:54:45,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2022-07-21 10:54:45,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 493 [2022-07-21 10:54:45,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:45,952 INFO L134 CoverageAnalysis]: Checked inductivity of 2829 backedges. 30 proven. 4 refuted. 0 times theorem prover too weak. 2795 trivial. 0 not checked. [2022-07-21 10:54:45,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:54:45,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692345737] [2022-07-21 10:54:45,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692345737] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:54:45,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735540991] [2022-07-21 10:54:45,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:54:45,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:54:45,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:54:45,954 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:54:45,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-21 10:54:47,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:47,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 4874 conjuncts, 127 conjunts are in the unsatisfiable core [2022-07-21 10:54:48,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:54:48,023 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 10:54:48,381 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-21 10:54:48,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:54:48,481 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-07-21 10:54:48,490 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-21 10:54:48,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:54:48,580 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-07-21 10:54:48,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:54:48,589 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-07-21 10:54:48,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:54:48,702 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-07-21 10:54:49,297 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-07-21 10:54:49,304 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-07-21 10:54:49,346 INFO L134 CoverageAnalysis]: Checked inductivity of 2829 backedges. 110 proven. 6 refuted. 0 times theorem prover too weak. 2713 trivial. 0 not checked. [2022-07-21 10:54:49,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 10:54:49,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735540991] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:54:49,443 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 10:54:49,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 24] total 36 [2022-07-21 10:54:49,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458598771] [2022-07-21 10:54:49,443 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 10:54:49,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-07-21 10:54:49,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:54:49,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-07-21 10:54:49,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=1206, Unknown=0, NotChecked=0, Total=1332 [2022-07-21 10:54:49,445 INFO L87 Difference]: Start difference. First operand 3652 states and 5146 transitions. Second operand has 36 states, 35 states have (on average 9.6) internal successors, (336), 22 states have internal predecessors, (336), 8 states have call successors, (135), 12 states have call predecessors, (135), 13 states have return successors, (95), 14 states have call predecessors, (95), 8 states have call successors, (95) [2022-07-21 10:54:58,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:54:58,490 INFO L93 Difference]: Finished difference Result 7471 states and 10790 transitions. [2022-07-21 10:54:58,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-07-21 10:54:58,491 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 9.6) internal successors, (336), 22 states have internal predecessors, (336), 8 states have call successors, (135), 12 states have call predecessors, (135), 13 states have return successors, (95), 14 states have call predecessors, (95), 8 states have call successors, (95) Word has length 521 [2022-07-21 10:54:58,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:54:58,503 INFO L225 Difference]: With dead ends: 7471 [2022-07-21 10:54:58,504 INFO L226 Difference]: Without dead ends: 4308 [2022-07-21 10:54:58,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 776 GetRequests, 697 SyntacticMatches, 18 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1271 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=437, Invalid=3469, Unknown=0, NotChecked=0, Total=3906 [2022-07-21 10:54:58,514 INFO L413 NwaCegarLoop]: 1485 mSDtfsCounter, 2260 mSDsluCounter, 12694 mSDsCounter, 0 mSdLazyCounter, 11214 mSolverCounterSat, 2293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2270 SdHoareTripleChecker+Valid, 14179 SdHoareTripleChecker+Invalid, 16777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2293 IncrementalHoareTripleChecker+Valid, 11214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3270 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:54:58,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2270 Valid, 14179 Invalid, 16777 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2293 Valid, 11214 Invalid, 0 Unknown, 3270 Unchecked, 8.0s Time] [2022-07-21 10:54:58,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4308 states. [2022-07-21 10:54:58,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4308 to 3761. [2022-07-21 10:54:58,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3761 states, 2747 states have (on average 1.33636694575901) internal successors, (3671), 2772 states have internal predecessors, (3671), 764 states have call successors, (764), 227 states have call predecessors, (764), 249 states have return successors, (817), 783 states have call predecessors, (817), 763 states have call successors, (817) [2022-07-21 10:54:58,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3761 states to 3761 states and 5252 transitions. [2022-07-21 10:54:58,695 INFO L78 Accepts]: Start accepts. Automaton has 3761 states and 5252 transitions. Word has length 521 [2022-07-21 10:54:58,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:54:58,696 INFO L495 AbstractCegarLoop]: Abstraction has 3761 states and 5252 transitions. [2022-07-21 10:54:58,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 9.6) internal successors, (336), 22 states have internal predecessors, (336), 8 states have call successors, (135), 12 states have call predecessors, (135), 13 states have return successors, (95), 14 states have call predecessors, (95), 8 states have call successors, (95) [2022-07-21 10:54:58,696 INFO L276 IsEmpty]: Start isEmpty. Operand 3761 states and 5252 transitions. [2022-07-21 10:54:58,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2022-07-21 10:54:58,703 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:54:58,704 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 7, 7, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:54:58,735 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-21 10:54:58,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:54:58,920 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:54:58,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:54:58,920 INFO L85 PathProgramCache]: Analyzing trace with hash 467890335, now seen corresponding path program 2 times [2022-07-21 10:54:58,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:54:58,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710127688] [2022-07-21 10:54:58,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:54:58,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:54:59,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:54:59,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:54:59,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:54:59,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:54:59,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:54:59,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:54:59,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:54:59,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:54:59,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:54:59,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:54:59,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:54:59,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:54:59,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:54:59,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:54:59,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:54:59,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:54:59,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:54:59,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:54:59,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:54:59,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:54:59,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:54:59,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:54:59,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:54:59,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:54:59,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-21 10:54:59,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-21 10:54:59,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-21 10:54:59,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-21 10:54:59,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-21 10:54:59,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-21 10:54:59,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-21 10:54:59,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-21 10:54:59,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-21 10:54:59,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-21 10:54:59,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-07-21 10:54:59,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-07-21 10:54:59,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-21 10:54:59,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-07-21 10:54:59,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-07-21 10:54:59,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:54:59,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-21 10:54:59,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:59,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:59,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:54:59,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-07-21 10:54:59,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2022-07-21 10:54:59,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-07-21 10:54:59,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-07-21 10:54:59,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:59,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2022-07-21 10:54:59,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-07-21 10:54:59,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:59,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-07-21 10:54:59,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2022-07-21 10:54:59,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-07-21 10:54:59,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-07-21 10:54:59,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-07-21 10:54:59,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-07-21 10:54:59,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-07-21 10:54:59,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:59,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:54:59,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2022-07-21 10:54:59,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:59,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:54:59,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:54:59,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 461 [2022-07-21 10:54:59,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 469 [2022-07-21 10:54:59,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:54:59,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2022-07-21 10:54:59,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2022-07-21 10:54:59,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 499 [2022-07-21 10:54:59,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:54:59,536 INFO L134 CoverageAnalysis]: Checked inductivity of 2847 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2846 trivial. 0 not checked. [2022-07-21 10:54:59,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:54:59,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710127688] [2022-07-21 10:54:59,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710127688] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:54:59,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462962562] [2022-07-21 10:54:59,537 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 10:54:59,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:54:59,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:54:59,538 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:54:59,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-21 10:55:08,544 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-21 10:55:08,545 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 10:55:08,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 4900 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-21 10:55:08,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:55:08,652 INFO L134 CoverageAnalysis]: Checked inductivity of 2847 backedges. 1248 proven. 1 refuted. 0 times theorem prover too weak. 1598 trivial. 0 not checked. [2022-07-21 10:55:08,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 10:55:08,998 INFO L134 CoverageAnalysis]: Checked inductivity of 2847 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2846 trivial. 0 not checked. [2022-07-21 10:55:08,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [462962562] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 10:55:08,999 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 10:55:08,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5] total 18 [2022-07-21 10:55:08,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932256758] [2022-07-21 10:55:08,999 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 10:55:09,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-21 10:55:09,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:55:09,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-21 10:55:09,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-07-21 10:55:09,002 INFO L87 Difference]: Start difference. First operand 3761 states and 5252 transitions. Second operand has 18 states, 18 states have (on average 15.61111111111111) internal successors, (281), 10 states have internal predecessors, (281), 2 states have call successors, (164), 10 states have call predecessors, (164), 5 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2022-07-21 10:55:14,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:55:14,085 INFO L93 Difference]: Finished difference Result 7981 states and 11473 transitions. [2022-07-21 10:55:14,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-21 10:55:14,086 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 15.61111111111111) internal successors, (281), 10 states have internal predecessors, (281), 2 states have call successors, (164), 10 states have call predecessors, (164), 5 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) Word has length 527 [2022-07-21 10:55:14,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:55:14,108 INFO L225 Difference]: With dead ends: 7981 [2022-07-21 10:55:14,108 INFO L226 Difference]: Without dead ends: 4283 [2022-07-21 10:55:14,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1222 GetRequests, 1187 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=305, Invalid=955, Unknown=0, NotChecked=0, Total=1260 [2022-07-21 10:55:14,117 INFO L413 NwaCegarLoop]: 1431 mSDtfsCounter, 2138 mSDsluCounter, 4729 mSDsCounter, 0 mSdLazyCounter, 3992 mSolverCounterSat, 2180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2148 SdHoareTripleChecker+Valid, 6160 SdHoareTripleChecker+Invalid, 6172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2180 IncrementalHoareTripleChecker+Valid, 3992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-07-21 10:55:14,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2148 Valid, 6160 Invalid, 6172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2180 Valid, 3992 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-07-21 10:55:14,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4283 states. [2022-07-21 10:55:14,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4283 to 3778. [2022-07-21 10:55:14,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3778 states, 2764 states have (on average 1.3397250361794502) internal successors, (3703), 2787 states have internal predecessors, (3703), 764 states have call successors, (764), 229 states have call predecessors, (764), 249 states have return successors, (817), 783 states have call predecessors, (817), 763 states have call successors, (817) [2022-07-21 10:55:14,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3778 states to 3778 states and 5284 transitions. [2022-07-21 10:55:14,366 INFO L78 Accepts]: Start accepts. Automaton has 3778 states and 5284 transitions. Word has length 527 [2022-07-21 10:55:14,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:55:14,366 INFO L495 AbstractCegarLoop]: Abstraction has 3778 states and 5284 transitions. [2022-07-21 10:55:14,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 15.61111111111111) internal successors, (281), 10 states have internal predecessors, (281), 2 states have call successors, (164), 10 states have call predecessors, (164), 5 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2022-07-21 10:55:14,367 INFO L276 IsEmpty]: Start isEmpty. Operand 3778 states and 5284 transitions. [2022-07-21 10:55:14,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2022-07-21 10:55:14,374 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:55:14,374 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:55:14,409 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-21 10:55:14,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:55:14,600 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:55:14,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:55:14,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1034255933, now seen corresponding path program 3 times [2022-07-21 10:55:14,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:55:14,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958017852] [2022-07-21 10:55:14,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:55:14,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:55:15,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:55:15,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:55:15,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:55:15,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:55:15,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:55:15,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:55:15,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:55:15,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:55:15,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:55:15,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:55:15,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:55:15,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:55:15,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:55:15,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:55:15,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:55:15,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:55:15,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:55:15,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:55:15,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:55:15,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:55:15,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:55:15,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:55:15,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:55:15,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:55:15,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-21 10:55:15,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-21 10:55:15,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 10:55:15,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-21 10:55:15,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-21 10:55:15,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-21 10:55:15,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-21 10:55:15,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-21 10:55:15,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-21 10:55:15,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-07-21 10:55:15,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-21 10:55:15,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-07-21 10:55:15,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-21 10:55:15,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-21 10:55:15,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-07-21 10:55:15,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:55:15,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-07-21 10:55:15,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:55:15,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:55:15,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:55:15,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2022-07-21 10:55:15,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-07-21 10:55:15,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-07-21 10:55:15,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-21 10:55:15,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:55:15,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-07-21 10:55:15,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2022-07-21 10:55:15,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:55:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2022-07-21 10:55:15,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-07-21 10:55:15,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-07-21 10:55:15,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2022-07-21 10:55:15,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-07-21 10:55:15,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2022-07-21 10:55:15,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2022-07-21 10:55:15,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:55:15,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:55:15,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2022-07-21 10:55:15,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:55:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:55:15,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:55:15,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2022-07-21 10:55:15,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2022-07-21 10:55:15,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:55:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2022-07-21 10:55:15,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 493 [2022-07-21 10:55:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:15,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2022-07-21 10:55:15,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:16,000 INFO L134 CoverageAnalysis]: Checked inductivity of 2856 backedges. 38 proven. 2 refuted. 0 times theorem prover too weak. 2816 trivial. 0 not checked. [2022-07-21 10:55:16,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:55:16,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958017852] [2022-07-21 10:55:16,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958017852] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:55:16,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139385427] [2022-07-21 10:55:16,001 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-21 10:55:16,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:55:16,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:55:16,002 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:55:16,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-21 10:55:17,223 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-07-21 10:55:17,224 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 10:55:17,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 2352 conjuncts, 82 conjunts are in the unsatisfiable core [2022-07-21 10:55:17,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:55:17,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:17,585 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 102 [2022-07-21 10:55:17,602 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-07-21 10:55:17,603 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 121 treesize of output 102 [2022-07-21 10:55:17,630 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 87 [2022-07-21 10:55:17,635 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 63 [2022-07-21 10:55:18,078 INFO L134 CoverageAnalysis]: Checked inductivity of 2856 backedges. 66 proven. 2 refuted. 0 times theorem prover too weak. 2788 trivial. 0 not checked. [2022-07-21 10:55:18,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 10:55:18,748 INFO L134 CoverageAnalysis]: Checked inductivity of 2856 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2834 trivial. 0 not checked. [2022-07-21 10:55:18,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139385427] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 10:55:18,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-07-21 10:55:18,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [21, 15] total 29 [2022-07-21 10:55:18,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537422553] [2022-07-21 10:55:18,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:55:18,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 10:55:18,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:55:18,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 10:55:18,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=712, Unknown=0, NotChecked=0, Total=812 [2022-07-21 10:55:18,751 INFO L87 Difference]: Start difference. First operand 3778 states and 5284 transitions. Second operand has 9 states, 8 states have (on average 27.5) internal successors, (220), 8 states have internal predecessors, (220), 5 states have call successors, (67), 3 states have call predecessors, (67), 2 states have return successors, (66), 3 states have call predecessors, (66), 4 states have call successors, (66) [2022-07-21 10:55:26,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:55:26,253 INFO L93 Difference]: Finished difference Result 8715 states and 12207 transitions. [2022-07-21 10:55:26,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 10:55:26,253 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 27.5) internal successors, (220), 8 states have internal predecessors, (220), 5 states have call successors, (67), 3 states have call predecessors, (67), 2 states have return successors, (66), 3 states have call predecessors, (66), 4 states have call successors, (66) Word has length 530 [2022-07-21 10:55:26,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:55:26,267 INFO L225 Difference]: With dead ends: 8715 [2022-07-21 10:55:26,267 INFO L226 Difference]: Without dead ends: 5420 [2022-07-21 10:55:26,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1216 GetRequests, 1181 SyntacticMatches, 6 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=116, Invalid=814, Unknown=0, NotChecked=0, Total=930 [2022-07-21 10:55:26,276 INFO L413 NwaCegarLoop]: 1757 mSDtfsCounter, 5240 mSDsluCounter, 4113 mSDsCounter, 0 mSdLazyCounter, 4300 mSolverCounterSat, 1907 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5348 SdHoareTripleChecker+Valid, 5870 SdHoareTripleChecker+Invalid, 6207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1907 IncrementalHoareTripleChecker+Valid, 4300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:55:26,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5348 Valid, 5870 Invalid, 6207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1907 Valid, 4300 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-07-21 10:55:26,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5420 states. [2022-07-21 10:55:26,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5420 to 5400. [2022-07-21 10:55:26,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5400 states, 3951 states have (on average 1.3391546443938243) internal successors, (5291), 3985 states have internal predecessors, (5291), 1093 states have call successors, (1093), 330 states have call predecessors, (1093), 355 states have return successors, (1166), 1117 states have call predecessors, (1166), 1092 states have call successors, (1166) [2022-07-21 10:55:26,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5400 states to 5400 states and 7550 transitions. [2022-07-21 10:55:26,535 INFO L78 Accepts]: Start accepts. Automaton has 5400 states and 7550 transitions. Word has length 530 [2022-07-21 10:55:26,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:55:26,535 INFO L495 AbstractCegarLoop]: Abstraction has 5400 states and 7550 transitions. [2022-07-21 10:55:26,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 27.5) internal successors, (220), 8 states have internal predecessors, (220), 5 states have call successors, (67), 3 states have call predecessors, (67), 2 states have return successors, (66), 3 states have call predecessors, (66), 4 states have call successors, (66) [2022-07-21 10:55:26,536 INFO L276 IsEmpty]: Start isEmpty. Operand 5400 states and 7550 transitions. [2022-07-21 10:55:26,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2022-07-21 10:55:26,544 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:55:26,544 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:55:26,571 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-21 10:55:26,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-07-21 10:55:26,764 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:55:26,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:55:26,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1299136705, now seen corresponding path program 1 times [2022-07-21 10:55:26,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:55:26,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591189636] [2022-07-21 10:55:26,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:55:26,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:55:27,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:55:27,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:55:27,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:55:27,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:55:27,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:55:27,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:55:27,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:55:27,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:55:27,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:55:27,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:55:27,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:55:27,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:55:27,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:55:27,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:55:27,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:55:27,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:55:27,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:55:27,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:55:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:55:27,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:55:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:55:27,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:55:27,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:55:27,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:55:27,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-21 10:55:27,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-21 10:55:27,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 10:55:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-21 10:55:27,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-21 10:55:27,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-21 10:55:27,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-21 10:55:27,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-21 10:55:27,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-21 10:55:27,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-07-21 10:55:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-21 10:55:27,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-07-21 10:55:27,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-21 10:55:27,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-21 10:55:27,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-07-21 10:55:27,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:55:27,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-07-21 10:55:27,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:55:27,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:27,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:55:27,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:28,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:55:28,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:28,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2022-07-21 10:55:28,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:28,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-07-21 10:55:28,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:28,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-07-21 10:55:28,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:28,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-21 10:55:28,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:28,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:55:28,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:28,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-07-21 10:55:28,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:28,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2022-07-21 10:55:28,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:28,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:55:28,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:28,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2022-07-21 10:55:28,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:28,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-07-21 10:55:28,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:28,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-07-21 10:55:28,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:28,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2022-07-21 10:55:28,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:28,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-07-21 10:55:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:28,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2022-07-21 10:55:28,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:28,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2022-07-21 10:55:28,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:28,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:55:28,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:28,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:55:28,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:28,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2022-07-21 10:55:28,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:28,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:55:28,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:28,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:55:28,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:28,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:55:28,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:28,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2022-07-21 10:55:28,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:28,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2022-07-21 10:55:28,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:28,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:55:28,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:28,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2022-07-21 10:55:28,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:28,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 493 [2022-07-21 10:55:28,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:28,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2022-07-21 10:55:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:28,363 INFO L134 CoverageAnalysis]: Checked inductivity of 2856 backedges. 38 proven. 16 refuted. 0 times theorem prover too weak. 2802 trivial. 0 not checked. [2022-07-21 10:55:28,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:55:28,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591189636] [2022-07-21 10:55:28,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591189636] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:55:28,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810378654] [2022-07-21 10:55:28,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:55:28,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:55:28,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:55:28,380 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:55:28,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-21 10:55:30,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:30,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 4938 conjuncts, 142 conjunts are in the unsatisfiable core [2022-07-21 10:55:30,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:55:30,589 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-07-21 10:55:30,595 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-07-21 10:55:30,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:30,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:30,683 INFO L356 Elim1Store]: treesize reduction 70, result has 26.3 percent of original size [2022-07-21 10:55:30,688 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 161 treesize of output 116 [2022-07-21 10:55:30,751 INFO L356 Elim1Store]: treesize reduction 238, result has 19.3 percent of original size [2022-07-21 10:55:30,752 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 147 treesize of output 165 [2022-07-21 10:55:30,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:30,808 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:30,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:30,868 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:30,920 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-07-21 10:55:30,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:30,969 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:31,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:31,041 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:31,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:31,086 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:31,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:31,364 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:31,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:31,412 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:31,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:31,434 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:31,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:31,480 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:31,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:31,533 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:31,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:31,555 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:31,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:31,591 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:31,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:31,620 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:31,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:31,652 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:31,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:31,702 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:31,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:31,853 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:31,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:31,891 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:31,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:31,907 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:31,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:31,942 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:31,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:31,978 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:31,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:31,997 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:32,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:32,034 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:32,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:32,062 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:32,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:32,128 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:32,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:32,187 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:32,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:32,251 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:32,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:32,291 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:32,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:32,306 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:32,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:32,349 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:32,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:32,400 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:32,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:32,429 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:32,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:32,476 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:32,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:32,528 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:32,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:32,569 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:32,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:32,629 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:32,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:32,718 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:32,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:32,773 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:32,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:32,943 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:32,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:32,963 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:33,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:33,024 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:33,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:33,085 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:33,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:33,120 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:33,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:33,177 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:33,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:33,222 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:33,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:33,272 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:33,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:33,349 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-21 10:55:33,577 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 289 treesize of output 217 [2022-07-21 10:55:33,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:33,604 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 31 [2022-07-21 10:55:33,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 10:55:33,646 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 31 [2022-07-21 10:55:33,841 INFO L134 CoverageAnalysis]: Checked inductivity of 2856 backedges. 70 proven. 8 refuted. 0 times theorem prover too weak. 2778 trivial. 0 not checked. [2022-07-21 10:55:33,842 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 10:55:55,298 INFO L134 CoverageAnalysis]: Checked inductivity of 2856 backedges. 42 proven. 16 refuted. 0 times theorem prover too weak. 2798 trivial. 0 not checked. [2022-07-21 10:55:55,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810378654] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 10:55:55,298 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 10:55:55,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 23, 23] total 59 [2022-07-21 10:55:55,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128751811] [2022-07-21 10:55:55,298 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 10:55:55,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2022-07-21 10:55:55,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:55:55,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2022-07-21 10:55:55,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=3213, Unknown=4, NotChecked=0, Total=3422 [2022-07-21 10:55:55,301 INFO L87 Difference]: Start difference. First operand 5400 states and 7550 transitions. Second operand has 59 states, 59 states have (on average 6.288135593220339) internal successors, (371), 38 states have internal predecessors, (371), 14 states have call successors, (152), 11 states have call predecessors, (152), 14 states have return successors, (110), 27 states have call predecessors, (110), 14 states have call successors, (110) [2022-07-21 10:56:36,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:56:36,873 INFO L93 Difference]: Finished difference Result 17685 states and 26683 transitions. [2022-07-21 10:56:36,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-07-21 10:56:36,876 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 6.288135593220339) internal successors, (371), 38 states have internal predecessors, (371), 14 states have call successors, (152), 11 states have call predecessors, (152), 14 states have return successors, (110), 27 states have call predecessors, (110), 14 states have call successors, (110) Word has length 530 [2022-07-21 10:56:36,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:56:36,915 INFO L225 Difference]: With dead ends: 17685 [2022-07-21 10:56:36,915 INFO L226 Difference]: Without dead ends: 12774 [2022-07-21 10:56:36,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1289 GetRequests, 1176 SyntacticMatches, 5 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2961 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=978, Invalid=11003, Unknown=9, NotChecked=0, Total=11990 [2022-07-21 10:56:36,928 INFO L413 NwaCegarLoop]: 2896 mSDtfsCounter, 4551 mSDsluCounter, 75340 mSDsCounter, 0 mSdLazyCounter, 47847 mSolverCounterSat, 3341 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4748 SdHoareTripleChecker+Valid, 78236 SdHoareTripleChecker+Invalid, 55265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3341 IncrementalHoareTripleChecker+Valid, 47847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4077 IncrementalHoareTripleChecker+Unchecked, 37.4s IncrementalHoareTripleChecker+Time [2022-07-21 10:56:36,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4748 Valid, 78236 Invalid, 55265 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3341 Valid, 47847 Invalid, 0 Unknown, 4077 Unchecked, 37.4s Time] [2022-07-21 10:56:36,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12774 states. [2022-07-21 10:56:37,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12774 to 6829. [2022-07-21 10:56:37,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6829 states, 5029 states have (on average 1.3479817061045933) internal successors, (6779), 5089 states have internal predecessors, (6779), 1352 states have call successors, (1352), 423 states have call predecessors, (1352), 447 states have return successors, (1490), 1348 states have call predecessors, (1490), 1351 states have call successors, (1490) [2022-07-21 10:56:37,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6829 states to 6829 states and 9621 transitions. [2022-07-21 10:56:37,343 INFO L78 Accepts]: Start accepts. Automaton has 6829 states and 9621 transitions. Word has length 530 [2022-07-21 10:56:37,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:56:37,344 INFO L495 AbstractCegarLoop]: Abstraction has 6829 states and 9621 transitions. [2022-07-21 10:56:37,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 6.288135593220339) internal successors, (371), 38 states have internal predecessors, (371), 14 states have call successors, (152), 11 states have call predecessors, (152), 14 states have return successors, (110), 27 states have call predecessors, (110), 14 states have call successors, (110) [2022-07-21 10:56:37,344 INFO L276 IsEmpty]: Start isEmpty. Operand 6829 states and 9621 transitions. [2022-07-21 10:56:37,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 570 [2022-07-21 10:56:37,356 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:56:37,356 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 9, 9, 6, 6, 6, 6, 6, 6, 6, 4, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:56:37,394 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-21 10:56:37,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:56:37,583 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:56:37,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:56:37,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1810012641, now seen corresponding path program 1 times [2022-07-21 10:56:37,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:56:37,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328529588] [2022-07-21 10:56:37,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:56:37,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:56:37,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:37,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:56:37,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:56:37,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:56:37,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:56:37,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:56:37,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:56:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:56:37,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:56:37,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:56:37,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:56:37,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:56:37,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:56:37,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:56:37,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:56:37,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:56:37,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:56:37,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:56:37,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:56:37,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:56:37,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:56:37,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:56:37,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:56:37,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:56:37,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-21 10:56:37,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-21 10:56:37,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 10:56:37,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-21 10:56:37,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-21 10:56:37,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-21 10:56:37,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-21 10:56:37,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-21 10:56:37,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-21 10:56:37,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-07-21 10:56:37,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-21 10:56:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-07-21 10:56:37,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-21 10:56:37,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-21 10:56:37,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-07-21 10:56:37,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:37,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-07-21 10:56:37,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:37,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:37,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:37,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2022-07-21 10:56:37,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-07-21 10:56:37,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-07-21 10:56:37,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-21 10:56:37,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:37,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-07-21 10:56:37,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2022-07-21 10:56:37,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:37,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2022-07-21 10:56:37,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-07-21 10:56:37,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-07-21 10:56:37,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2022-07-21 10:56:37,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-07-21 10:56:37,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2022-07-21 10:56:37,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2022-07-21 10:56:37,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:37,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:37,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:38,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:38,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:38,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2022-07-21 10:56:38,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:38,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:38,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:38,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 10:56:38,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:38,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 457 [2022-07-21 10:56:38,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:38,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 465 [2022-07-21 10:56:38,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:38,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:38,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:38,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:38,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:38,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2022-07-21 10:56:38,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:38,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:38,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:38,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:38,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:38,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2022-07-21 10:56:38,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:38,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:38,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:38,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:38,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:38,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:56:38,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:38,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 529 [2022-07-21 10:56:38,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:38,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 541 [2022-07-21 10:56:38,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:38,074 INFO L134 CoverageAnalysis]: Checked inductivity of 2990 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2968 trivial. 0 not checked. [2022-07-21 10:56:38,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:56:38,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328529588] [2022-07-21 10:56:38,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328529588] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:56:38,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:56:38,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 10:56:38,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091085003] [2022-07-21 10:56:38,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:56:38,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 10:56:38,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:56:38,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 10:56:38,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-21 10:56:38,076 INFO L87 Difference]: Start difference. First operand 6829 states and 9621 transitions. Second operand has 11 states, 11 states have (on average 20.09090909090909) internal successors, (221), 4 states have internal predecessors, (221), 2 states have call successors, (68), 9 states have call predecessors, (68), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2022-07-21 10:56:44,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:56:44,034 INFO L93 Difference]: Finished difference Result 16813 states and 25305 transitions. [2022-07-21 10:56:44,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 10:56:44,035 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 20.09090909090909) internal successors, (221), 4 states have internal predecessors, (221), 2 states have call successors, (68), 9 states have call predecessors, (68), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) Word has length 569 [2022-07-21 10:56:44,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:56:44,079 INFO L225 Difference]: With dead ends: 16813 [2022-07-21 10:56:44,079 INFO L226 Difference]: Without dead ends: 11873 [2022-07-21 10:56:44,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-21 10:56:44,098 INFO L413 NwaCegarLoop]: 2865 mSDtfsCounter, 2918 mSDsluCounter, 8849 mSDsCounter, 0 mSdLazyCounter, 4750 mSolverCounterSat, 2418 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3212 SdHoareTripleChecker+Valid, 11714 SdHoareTripleChecker+Invalid, 7168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2418 IncrementalHoareTripleChecker+Valid, 4750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:56:44,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3212 Valid, 11714 Invalid, 7168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2418 Valid, 4750 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-07-21 10:56:44,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11873 states. [2022-07-21 10:56:44,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11873 to 6835. [2022-07-21 10:56:44,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6835 states, 5035 states have (on average 1.3475670307845085) internal successors, (6785), 5095 states have internal predecessors, (6785), 1352 states have call successors, (1352), 423 states have call predecessors, (1352), 447 states have return successors, (1490), 1348 states have call predecessors, (1490), 1351 states have call successors, (1490) [2022-07-21 10:56:44,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6835 states to 6835 states and 9627 transitions. [2022-07-21 10:56:44,551 INFO L78 Accepts]: Start accepts. Automaton has 6835 states and 9627 transitions. Word has length 569 [2022-07-21 10:56:44,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:56:44,551 INFO L495 AbstractCegarLoop]: Abstraction has 6835 states and 9627 transitions. [2022-07-21 10:56:44,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 20.09090909090909) internal successors, (221), 4 states have internal predecessors, (221), 2 states have call successors, (68), 9 states have call predecessors, (68), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2022-07-21 10:56:44,551 INFO L276 IsEmpty]: Start isEmpty. Operand 6835 states and 9627 transitions. [2022-07-21 10:56:44,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 587 [2022-07-21 10:56:44,610 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:56:44,611 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 9, 9, 6, 6, 6, 6, 6, 6, 6, 4, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:56:44,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-21 10:56:44,611 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:56:44,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:56:44,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1251838758, now seen corresponding path program 1 times [2022-07-21 10:56:44,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:56:44,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417328688] [2022-07-21 10:56:44,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:56:44,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:56:44,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:44,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:56:44,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:56:44,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:56:44,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:56:44,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:56:44,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:56:44,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:56:44,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:56:44,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:56:44,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:56:44,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:56:44,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:56:44,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:56:44,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:56:44,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:56:44,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:56:44,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:56:44,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:56:44,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:56:44,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:56:44,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:56:44,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:56:44,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:56:44,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-21 10:56:44,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-21 10:56:45,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 10:56:45,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-21 10:56:45,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-21 10:56:45,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-21 10:56:45,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-21 10:56:45,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-21 10:56:45,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-21 10:56:45,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-07-21 10:56:45,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-21 10:56:45,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-07-21 10:56:45,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-21 10:56:45,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-21 10:56:45,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-07-21 10:56:45,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:45,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-07-21 10:56:45,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:45,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:45,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:45,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2022-07-21 10:56:45,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-07-21 10:56:45,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-07-21 10:56:45,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-21 10:56:45,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:45,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-07-21 10:56:45,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2022-07-21 10:56:45,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:45,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:45,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-07-21 10:56:45,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-07-21 10:56:45,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-07-21 10:56:45,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2022-07-21 10:56:45,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2022-07-21 10:56:45,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2022-07-21 10:56:45,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2022-07-21 10:56:45,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:45,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:45,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2022-07-21 10:56:45,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:45,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 10:56:45,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-07-21 10:56:45,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-07-21 10:56:45,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:45,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:45,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2022-07-21 10:56:45,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:45,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2022-07-21 10:56:45,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:45,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:45,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:56:45,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 530 [2022-07-21 10:56:45,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 536 [2022-07-21 10:56:45,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 542 [2022-07-21 10:56:45,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 549 [2022-07-21 10:56:45,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 558 [2022-07-21 10:56:45,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2993 backedges. 22 proven. 8 refuted. 0 times theorem prover too weak. 2963 trivial. 0 not checked. [2022-07-21 10:56:45,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:56:45,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417328688] [2022-07-21 10:56:45,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417328688] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:56:45,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116042633] [2022-07-21 10:56:45,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:56:45,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:56:45,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:56:45,344 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 10:56:45,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-21 10:56:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:46,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 5248 conjuncts, 75 conjunts are in the unsatisfiable core [2022-07-21 10:56:46,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:56:48,045 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-07-21 10:56:48,050 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-07-21 10:56:48,088 INFO L134 CoverageAnalysis]: Checked inductivity of 2993 backedges. 169 proven. 30 refuted. 0 times theorem prover too weak. 2794 trivial. 0 not checked. [2022-07-21 10:56:48,088 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 10:56:49,139 INFO L134 CoverageAnalysis]: Checked inductivity of 2993 backedges. 22 proven. 9 refuted. 0 times theorem prover too weak. 2962 trivial. 0 not checked. [2022-07-21 10:56:49,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116042633] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 10:56:49,139 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 10:56:49,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 18, 8] total 35 [2022-07-21 10:56:49,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141215378] [2022-07-21 10:56:49,140 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 10:56:49,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-07-21 10:56:49,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:56:49,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-07-21 10:56:49,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=1064, Unknown=0, NotChecked=0, Total=1190 [2022-07-21 10:56:49,149 INFO L87 Difference]: Start difference. First operand 6835 states and 9627 transitions. Second operand has 35 states, 35 states have (on average 14.428571428571429) internal successors, (505), 22 states have internal predecessors, (505), 9 states have call successors, (215), 12 states have call predecessors, (215), 9 states have return successors, (202), 15 states have call predecessors, (202), 9 states have call successors, (202) [2022-07-21 10:57:27,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:57:27,110 INFO L93 Difference]: Finished difference Result 14971 states and 22169 transitions. [2022-07-21 10:57:27,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-07-21 10:57:27,111 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 14.428571428571429) internal successors, (505), 22 states have internal predecessors, (505), 9 states have call successors, (215), 12 states have call predecessors, (215), 9 states have return successors, (202), 15 states have call predecessors, (202), 9 states have call successors, (202) Word has length 586 [2022-07-21 10:57:27,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:57:27,133 INFO L225 Difference]: With dead ends: 14971 [2022-07-21 10:57:27,134 INFO L226 Difference]: Without dead ends: 10025 [2022-07-21 10:57:27,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1384 GetRequests, 1314 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1273 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=652, Invalid=4460, Unknown=0, NotChecked=0, Total=5112 [2022-07-21 10:57:27,143 INFO L413 NwaCegarLoop]: 2709 mSDtfsCounter, 10224 mSDsluCounter, 42650 mSDsCounter, 0 mSdLazyCounter, 39353 mSolverCounterSat, 8382 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10441 SdHoareTripleChecker+Valid, 45359 SdHoareTripleChecker+Invalid, 47735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 8382 IncrementalHoareTripleChecker+Valid, 39353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.7s IncrementalHoareTripleChecker+Time [2022-07-21 10:57:27,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10441 Valid, 45359 Invalid, 47735 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [8382 Valid, 39353 Invalid, 0 Unknown, 0 Unchecked, 35.7s Time] [2022-07-21 10:57:27,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10025 states.