./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--media--usb--gspca--gspca_main.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--media--usb--gspca--gspca_main.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 161acb090810893f5857465330b1e9af98cd436d8b1ab4337fc3709fda2d3260 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 10:55:46,935 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 10:55:46,937 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 10:55:46,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 10:55:46,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 10:55:46,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 10:55:46,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 10:55:46,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 10:55:46,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 10:55:46,978 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 10:55:46,979 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 10:55:46,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 10:55:46,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 10:55:46,983 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 10:55:46,983 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 10:55:46,986 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 10:55:46,986 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 10:55:46,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 10:55:46,990 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 10:55:46,994 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 10:55:46,995 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 10:55:46,996 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 10:55:46,997 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 10:55:46,998 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 10:55:46,999 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 10:55:47,004 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 10:55:47,004 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 10:55:47,004 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 10:55:47,005 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 10:55:47,005 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 10:55:47,006 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 10:55:47,006 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 10:55:47,007 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 10:55:47,008 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 10:55:47,009 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 10:55:47,009 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 10:55:47,010 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 10:55:47,010 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 10:55:47,010 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 10:55:47,010 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 10:55:47,011 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 10:55:47,012 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 10:55:47,018 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 10:55:47,043 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 10:55:47,044 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 10:55:47,044 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 10:55:47,044 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 10:55:47,045 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 10:55:47,045 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 10:55:47,045 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 10:55:47,046 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 10:55:47,046 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 10:55:47,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 10:55:47,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 10:55:47,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 10:55:47,055 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 10:55:47,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 10:55:47,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 10:55:47,055 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 10:55:47,055 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 10:55:47,056 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 10:55:47,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 10:55:47,056 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 10:55:47,056 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 10:55:47,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 10:55:47,056 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 10:55:47,056 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 10:55:47,057 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 10:55:47,057 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 10:55:47,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 10:55:47,057 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 10:55:47,057 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 10:55:47,057 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 10:55:47,057 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 161acb090810893f5857465330b1e9af98cd436d8b1ab4337fc3709fda2d3260 [2022-07-21 10:55:47,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 10:55:47,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 10:55:47,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 10:55:47,349 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 10:55:47,350 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 10:55:47,352 INFO L432 ainManager$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--media--usb--gspca--gspca_main.ko-entry_point.cil.out.i [2022-07-21 10:55:47,451 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a2b197d5/2e6686106a794d5eb599a757fa1f0fd5/FLAGe683ae235 [2022-07-21 10:55:47,936 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 10:55:47,936 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--media--usb--gspca--gspca_main.ko-entry_point.cil.out.i [2022-07-21 10:55:47,965 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a2b197d5/2e6686106a794d5eb599a757fa1f0fd5/FLAGe683ae235 [2022-07-21 10:55:48,176 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a2b197d5/2e6686106a794d5eb599a757fa1f0fd5 [2022-07-21 10:55:48,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 10:55:48,179 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 10:55:48,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 10:55:48,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 10:55:48,189 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 10:55:48,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:55:48" (1/1) ... [2022-07-21 10:55:48,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54c4044a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:48, skipping insertion in model container [2022-07-21 10:55:48,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:55:48" (1/1) ... [2022-07-21 10:55:48,208 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 10:55:48,319 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 10:55:48,745 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name match at C: (*match)(struct device * , struct v4l2_async_subdev * ) [4482] [2022-07-21 10:55:49,091 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--media--usb--gspca--gspca_main.ko-entry_point.cil.out.i[155153,155166] [2022-07-21 10:55:49,782 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-21 10:55:49,804 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 10:55:49,851 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 10:55:49,936 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name match at C: (*match)(struct device * , struct v4l2_async_subdev * ) [4482] [2022-07-21 10:55:49,949 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--media--usb--gspca--gspca_main.ko-entry_point.cil.out.i[155153,155166] [2022-07-21 10:55:50,254 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-21 10:55:50,261 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 10:55:50,321 INFO L208 MainTranslator]: Completed translation [2022-07-21 10:55:50,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:50 WrapperNode [2022-07-21 10:55:50,322 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 10:55:50,323 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 10:55:50,323 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 10:55:50,323 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 10:55:50,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:50" (1/1) ... [2022-07-21 10:55:50,408 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:50" (1/1) ... [2022-07-21 10:55:50,507 INFO L137 Inliner]: procedures = 242, calls = 2936, calls flagged for inlining = 95, calls inlined = 71, statements flattened = 4044 [2022-07-21 10:55:50,508 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 10:55:50,509 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 10:55:50,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 10:55:50,509 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 10:55:50,515 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:50" (1/1) ... [2022-07-21 10:55:50,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:50" (1/1) ... [2022-07-21 10:55:50,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:50" (1/1) ... [2022-07-21 10:55:50,553 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:50" (1/1) ... [2022-07-21 10:55:50,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:50" (1/1) ... [2022-07-21 10:55:50,690 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:50" (1/1) ... [2022-07-21 10:55:50,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:50" (1/1) ... [2022-07-21 10:55:50,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 10:55:50,780 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 10:55:50,780 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 10:55:50,781 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 10:55:50,782 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:50" (1/1) ... [2022-07-21 10:55:50,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 10:55:50,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:55:50,841 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 10:55:50,859 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 10:55:50,880 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-21 10:55:50,880 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-21 10:55:50,880 INFO L130 BoogieDeclarations]: Found specification of procedure wxh_to_mode [2022-07-21 10:55:50,881 INFO L138 BoogieDeclarations]: Found implementation of procedure wxh_to_mode [2022-07-21 10:55:50,881 INFO L130 BoogieDeclarations]: Found specification of procedure PDEBUG_MODE [2022-07-21 10:55:50,881 INFO L138 BoogieDeclarations]: Found implementation of procedure PDEBUG_MODE [2022-07-21 10:55:50,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 10:55:50,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 10:55:50,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 10:55:50,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 10:55:50,881 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2022-07-21 10:55:50,881 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2022-07-21 10:55:50,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-07-21 10:55:50,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-07-21 10:55:50,882 INFO L130 BoogieDeclarations]: Found specification of procedure frame_free [2022-07-21 10:55:50,882 INFO L138 BoogieDeclarations]: Found implementation of procedure frame_free [2022-07-21 10:55:50,882 INFO L130 BoogieDeclarations]: Found specification of procedure alt_xfer [2022-07-21 10:55:50,882 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_xfer [2022-07-21 10:55:50,882 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamon [2022-07-21 10:55:50,916 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamon [2022-07-21 10:55:50,916 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-21 10:55:50,916 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-21 10:55:50,916 INFO L130 BoogieDeclarations]: Found specification of procedure dev_mmap [2022-07-21 10:55:50,916 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_mmap [2022-07-21 10:55:50,916 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2022-07-21 10:55:50,916 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2022-07-21 10:55:50,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 10:55:50,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 10:55:50,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-07-21 10:55:50,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-07-21 10:55:50,917 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamoff [2022-07-21 10:55:50,917 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamoff [2022-07-21 10:55:50,917 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_init_transfer [2022-07-21 10:55:50,917 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_init_transfer [2022-07-21 10:55:50,917 INFO L130 BoogieDeclarations]: Found specification of procedure dev_poll [2022-07-21 10:55:50,917 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_poll [2022-07-21 10:55:50,917 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-07-21 10:55:50,917 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-07-21 10:55:50,917 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_reqbufs [2022-07-21 10:55:50,917 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_reqbufs [2022-07-21 10:55:50,917 INFO L130 BoogieDeclarations]: Found specification of procedure frame_ready_nolock [2022-07-21 10:55:50,917 INFO L138 BoogieDeclarations]: Found implementation of procedure frame_ready_nolock [2022-07-21 10:55:50,917 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-21 10:55:50,917 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-21 10:55:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 10:55:50,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 10:55:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure frame_ready [2022-07-21 10:55:50,918 INFO L138 BoogieDeclarations]: Found implementation of procedure frame_ready [2022-07-21 10:55:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-07-21 10:55:50,918 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-07-21 10:55:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-21 10:55:50,918 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-21 10:55:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 10:55:50,918 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 10:55:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 10:55:50,918 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 10:55:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_set_alt0 [2022-07-21 10:55:50,918 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_set_alt0 [2022-07-21 10:55:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure bulk_irq [2022-07-21 10:55:50,918 INFO L138 BoogieDeclarations]: Found implementation of procedure bulk_irq [2022-07-21 10:55:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-07-21 10:55:50,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-07-21 10:55:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure video_drvdata [2022-07-21 10:55:50,919 INFO L138 BoogieDeclarations]: Found implementation of procedure video_drvdata [2022-07-21 10:55:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get [2022-07-21 10:55:50,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get [2022-07-21 10:55:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 10:55:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-07-21 10:55:50,919 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-07-21 10:55:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-07-21 10:55:50,919 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-07-21 10:55:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 10:55:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_12 [2022-07-21 10:55:50,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_12 [2022-07-21 10:55:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-21 10:55:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_free [2022-07-21 10:55:50,919 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_free [2022-07-21 10:55:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_and_submit_int_urb [2022-07-21 10:55:50,919 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_and_submit_int_urb [2022-07-21 10:55:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-21 10:55:50,920 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-21 10:55:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-07-21 10:55:50,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-07-21 10:55:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2022-07-21 10:55:50,920 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2022-07-21 10:55:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure int_irq [2022-07-21 10:55:50,920 INFO L138 BoogieDeclarations]: Found implementation of procedure int_irq [2022-07-21 10:55:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_setup [2022-07-21 10:55:50,920 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_setup [2022-07-21 10:55:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 10:55:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 10:55:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure fill_frame [2022-07-21 10:55:50,920 INFO L138 BoogieDeclarations]: Found implementation of procedure fill_frame [2022-07-21 10:55:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure read_alloc [2022-07-21 10:55:50,920 INFO L138 BoogieDeclarations]: Found implementation of procedure read_alloc [2022-07-21 10:55:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_stream_off [2022-07-21 10:55:50,920 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_stream_off [2022-07-21 10:55:50,920 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-21 10:55:50,920 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-21 10:55:50,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-21 10:55:50,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-21 10:55:50,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-21 10:55:50,921 INFO L130 BoogieDeclarations]: Found specification of procedure isoc_irq [2022-07-21 10:55:50,921 INFO L138 BoogieDeclarations]: Found implementation of procedure isoc_irq [2022-07-21 10:55:50,921 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_dqbuf [2022-07-21 10:55:50,921 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_dqbuf [2022-07-21 10:55:50,921 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_input_create_urb [2022-07-21 10:55:50,921 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_input_create_urb [2022-07-21 10:55:50,921 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_timeval [2022-07-21 10:55:50,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_timeval [2022-07-21 10:55:50,921 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2022-07-21 10:55:50,921 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2022-07-21 10:55:50,921 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release_empty [2022-07-21 10:55:50,921 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release_empty [2022-07-21 10:55:50,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-21 10:55:50,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2022-07-21 10:55:50,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2022-07-21 10:55:50,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_8 [2022-07-21 10:55:50,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_8 [2022-07-21 10:55:50,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_5 [2022-07-21 10:55:50,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_5 [2022-07-21 10:55:50,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_9 [2022-07-21 10:55:50,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_9 [2022-07-21 10:55:50,922 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_input_destroy_urb [2022-07-21 10:55:50,922 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_input_destroy_urb [2022-07-21 10:55:50,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 10:55:50,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 10:55:50,922 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 10:55:50,922 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-21 10:55:50,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-21 10:55:50,922 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-07-21 10:55:50,922 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-07-21 10:55:50,922 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-07-21 10:55:50,922 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-07-21 10:55:50,922 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-07-21 10:55:50,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-07-21 10:55:50,923 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 10:55:50,923 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 10:55:50,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 10:55:50,923 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-21 10:55:50,923 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-21 10:55:50,923 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_subscribe_event [2022-07-21 10:55:50,926 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_subscribe_event [2022-07-21 10:55:50,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 10:55:50,926 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_urbs [2022-07-21 10:55:50,926 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_urbs [2022-07-21 10:55:50,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 10:55:50,927 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_input [2022-07-21 10:55:50,927 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_input [2022-07-21 10:55:50,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-21 10:55:50,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-21 10:55:50,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 10:55:50,927 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-21 10:55:50,928 INFO L130 BoogieDeclarations]: Found specification of procedure try_fmt_vid_cap [2022-07-21 10:55:50,928 INFO L138 BoogieDeclarations]: Found implementation of procedure try_fmt_vid_cap [2022-07-21 10:55:50,928 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 10:55:50,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 10:55:50,928 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-21 10:55:50,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-21 10:55:50,928 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2022-07-21 10:55:50,928 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2022-07-21 10:55:50,928 INFO L130 BoogieDeclarations]: Found specification of procedure dev_open [2022-07-21 10:55:50,929 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_open [2022-07-21 10:55:50,929 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_vm_close [2022-07-21 10:55:50,929 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_vm_close [2022-07-21 10:55:50,929 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-21 10:55:50,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-21 10:55:50,929 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_qbuf [2022-07-21 10:55:50,929 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_qbuf [2022-07-21 10:55:50,929 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-21 10:55:50,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-21 10:55:50,930 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_unsubscribe [2022-07-21 10:55:50,930 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_unsubscribe [2022-07-21 10:55:50,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-07-21 10:55:50,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-07-21 10:55:50,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 10:55:50,930 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-07-21 10:55:50,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-07-21 10:55:50,931 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_vm_open [2022-07-21 10:55:50,931 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_vm_open [2022-07-21 10:55:50,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 10:55:50,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 10:55:51,445 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 10:55:51,449 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 10:55:51,553 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 10:55:52,466 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-07-21 10:55:53,758 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 10:55:53,794 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 10:55:53,795 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 10:55:53,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:55:53 BoogieIcfgContainer [2022-07-21 10:55:53,799 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 10:55:53,800 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 10:55:53,800 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 10:55:53,802 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 10:55:53,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:55:48" (1/3) ... [2022-07-21 10:55:53,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@364253b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:55:53, skipping insertion in model container [2022-07-21 10:55:53,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:50" (2/3) ... [2022-07-21 10:55:53,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@364253b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:55:53, skipping insertion in model container [2022-07-21 10:55:53,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:55:53" (3/3) ... [2022-07-21 10:55:53,804 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--gspca--gspca_main.ko-entry_point.cil.out.i [2022-07-21 10:55:53,814 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 10:55:53,814 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 10:55:53,883 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 10:55:53,889 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@5a1e7c1, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5ae40984 [2022-07-21 10:55:53,889 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 10:55:53,896 INFO L276 IsEmpty]: Start isEmpty. Operand has 1436 states, 1067 states have (on average 1.415182755388941) internal successors, (1510), 1095 states have internal predecessors, (1510), 287 states have call successors, (287), 82 states have call predecessors, (287), 80 states have return successors, (280), 274 states have call predecessors, (280), 280 states have call successors, (280) [2022-07-21 10:55:53,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-07-21 10:55:53,920 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:55:53,921 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 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] [2022-07-21 10:55:53,921 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:55:53,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:55:53,924 INFO L85 PathProgramCache]: Analyzing trace with hash -984320848, now seen corresponding path program 1 times [2022-07-21 10:55:53,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:55:53,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722747397] [2022-07-21 10:55:53,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:55:53,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:55:54,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:55:54,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:55:54,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:55:54,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:55:54,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:55:54,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:55:54,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:55:54,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:55:54,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:55:54,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:55:54,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:55:54,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:55:54,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:55:54,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:55:54,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:55:54,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:55:54,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:55:54,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:55:54,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:55:54,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:55:54,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:55:54,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:55:54,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:55:54,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:55:54,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 10:55:54,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-21 10:55:54,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 10:55:54,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 10:55:54,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-21 10:55:54,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 10:55:54,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-21 10:55:54,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 10:55:54,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-21 10:55:54,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-21 10:55:54,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-21 10:55:54,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-21 10:55:54,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 10:55:54,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-21 10:55:54,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-21 10:55:54,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-21 10:55:54,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-21 10:55:54,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-07-21 10:55:54,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:55:54,793 INFO L134 CoverageAnalysis]: Checked inductivity of 3124 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3124 trivial. 0 not checked. [2022-07-21 10:55:54,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:55:54,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722747397] [2022-07-21 10:55:54,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722747397] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:55:54,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:55:54,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 10:55:54,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147383794] [2022-07-21 10:55:54,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:55:54,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 10:55:54,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:55:54,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 10:55:54,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:55:54,819 INFO L87 Difference]: Start difference. First operand has 1436 states, 1067 states have (on average 1.415182755388941) internal successors, (1510), 1095 states have internal predecessors, (1510), 287 states have call successors, (287), 82 states have call predecessors, (287), 80 states have return successors, (280), 274 states have call predecessors, (280), 280 states have call successors, (280) 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, (43), 3 states have call predecessors, (43), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2022-07-21 10:56:00,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:56:00,491 INFO L93 Difference]: Finished difference Result 5216 states and 8115 transitions. [2022-07-21 10:56:00,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 10:56:00,493 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, (43), 3 states have call predecessors, (43), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 267 [2022-07-21 10:56:00,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:56:00,552 INFO L225 Difference]: With dead ends: 5216 [2022-07-21 10:56:00,552 INFO L226 Difference]: Without dead ends: 3761 [2022-07-21 10:56:00,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 10:56:00,568 INFO L413 NwaCegarLoop]: 2099 mSDtfsCounter, 5147 mSDsluCounter, 3434 mSDsCounter, 0 mSdLazyCounter, 2737 mSolverCounterSat, 1993 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5367 SdHoareTripleChecker+Valid, 5533 SdHoareTripleChecker+Invalid, 4730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1993 IncrementalHoareTripleChecker+Valid, 2737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-07-21 10:56:00,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5367 Valid, 5533 Invalid, 4730 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1993 Valid, 2737 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-07-21 10:56:00,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3761 states. [2022-07-21 10:56:00,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3761 to 2713. [2022-07-21 10:56:00,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2713 states, 2051 states have (on average 1.401267674305217) internal successors, (2874), 2085 states have internal predecessors, (2874), 504 states have call successors, (504), 158 states have call predecessors, (504), 157 states have return successors, (499), 487 states have call predecessors, (499), 499 states have call successors, (499) [2022-07-21 10:56:00,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2713 states to 2713 states and 3877 transitions. [2022-07-21 10:56:00,741 INFO L78 Accepts]: Start accepts. Automaton has 2713 states and 3877 transitions. Word has length 267 [2022-07-21 10:56:00,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:56:00,742 INFO L495 AbstractCegarLoop]: Abstraction has 2713 states and 3877 transitions. [2022-07-21 10:56:00,743 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, (43), 3 states have call predecessors, (43), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2022-07-21 10:56:00,743 INFO L276 IsEmpty]: Start isEmpty. Operand 2713 states and 3877 transitions. [2022-07-21 10:56:00,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2022-07-21 10:56:00,746 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:56:00,747 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 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] [2022-07-21 10:56:00,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 10:56:00,747 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:56:00,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:56:00,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1051859172, now seen corresponding path program 1 times [2022-07-21 10:56:00,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:56:00,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030483586] [2022-07-21 10:56:00,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:56:00,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:56:00,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:00,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:00,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:00,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:56:00,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:00,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:56:00,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:56:01,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:56:01,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:56:01,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:56:01,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:56:01,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:56:01,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:56:01,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:56:01,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:56:01,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:56:01,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:56:01,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:56:01,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:56:01,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:56:01,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:56:01,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:56:01,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:56:01,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:56:01,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:56:01,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:56:01,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:56:01,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 10:56:01,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-21 10:56:01,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 10:56:01,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 10:56:01,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-21 10:56:01,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 10:56:01,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-21 10:56:01,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 10:56:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-21 10:56:01,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-21 10:56:01,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-21 10:56:01,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-21 10:56:01,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 10:56:01,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-21 10:56:01,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-21 10:56:01,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-21 10:56:01,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-21 10:56:01,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-07-21 10:56:01,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:01,307 INFO L134 CoverageAnalysis]: Checked inductivity of 3124 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3124 trivial. 0 not checked. [2022-07-21 10:56:01,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:56:01,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030483586] [2022-07-21 10:56:01,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030483586] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:56:01,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:56:01,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 10:56:01,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885089710] [2022-07-21 10:56:01,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:56:01,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 10:56:01,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:56:01,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 10:56:01,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 10:56:01,310 INFO L87 Difference]: Start difference. First operand 2713 states and 3877 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2022-07-21 10:56:05,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:56:05,393 INFO L93 Difference]: Finished difference Result 6386 states and 9364 transitions. [2022-07-21 10:56:05,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 10:56:05,393 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 270 [2022-07-21 10:56:05,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:56:05,414 INFO L225 Difference]: With dead ends: 6386 [2022-07-21 10:56:05,414 INFO L226 Difference]: Without dead ends: 3760 [2022-07-21 10:56:05,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-07-21 10:56:05,425 INFO L413 NwaCegarLoop]: 2322 mSDtfsCounter, 4236 mSDsluCounter, 3872 mSDsCounter, 0 mSdLazyCounter, 2389 mSolverCounterSat, 1424 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4457 SdHoareTripleChecker+Valid, 6194 SdHoareTripleChecker+Invalid, 3813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1424 IncrementalHoareTripleChecker+Valid, 2389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-07-21 10:56:05,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4457 Valid, 6194 Invalid, 3813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1424 Valid, 2389 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-07-21 10:56:05,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3760 states. [2022-07-21 10:56:05,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3760 to 2712. [2022-07-21 10:56:05,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2712 states, 2050 states have (on average 1.4) internal successors, (2870), 2084 states have internal predecessors, (2870), 504 states have call successors, (504), 158 states have call predecessors, (504), 157 states have return successors, (499), 487 states have call predecessors, (499), 499 states have call successors, (499) [2022-07-21 10:56:05,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2712 states to 2712 states and 3873 transitions. [2022-07-21 10:56:05,565 INFO L78 Accepts]: Start accepts. Automaton has 2712 states and 3873 transitions. Word has length 270 [2022-07-21 10:56:05,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:56:05,566 INFO L495 AbstractCegarLoop]: Abstraction has 2712 states and 3873 transitions. [2022-07-21 10:56:05,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2022-07-21 10:56:05,567 INFO L276 IsEmpty]: Start isEmpty. Operand 2712 states and 3873 transitions. [2022-07-21 10:56:05,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2022-07-21 10:56:05,575 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:56:05,575 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 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] [2022-07-21 10:56:05,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 10:56:05,576 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:56:05,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:56:05,576 INFO L85 PathProgramCache]: Analyzing trace with hash 2113432741, now seen corresponding path program 1 times [2022-07-21 10:56:05,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:56:05,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327672520] [2022-07-21 10:56:05,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:56:05,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:56:05,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:05,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:05,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:05,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:56:05,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:05,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:56:05,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:05,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:56:05,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:05,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:56:05,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:05,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:56:05,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:05,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:56:05,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:05,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:56:05,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:05,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:56:05,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:05,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:56:05,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:05,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:56:05,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:05,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:56:05,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:05,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:56:05,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:05,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:56:05,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:05,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:56:05,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:05,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:56:05,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:05,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:56:05,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:05,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:56:05,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:05,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:56:05,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:05,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:56:05,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:05,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:56:05,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:06,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:56:06,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:06,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:56:06,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:06,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:56:06,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:06,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 10:56:06,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:06,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-21 10:56:06,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:06,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 10:56:06,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:06,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 10:56:06,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:06,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-21 10:56:06,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:06,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 10:56:06,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:06,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-21 10:56:06,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:06,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 10:56:06,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:06,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-21 10:56:06,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:06,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-21 10:56:06,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:06,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-21 10:56:06,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:06,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-21 10:56:06,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:06,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 10:56:06,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:06,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-21 10:56:06,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:06,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-21 10:56:06,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:06,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-21 10:56:06,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:06,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-21 10:56:06,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:06,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-07-21 10:56:06,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:06,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-21 10:56:06,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:06,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-07-21 10:56:06,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:06,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-07-21 10:56:06,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:06,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-21 10:56:06,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:06,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-07-21 10:56:06,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:06,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-21 10:56:06,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:06,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-21 10:56:06,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:06,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-07-21 10:56:06,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:06,306 INFO L134 CoverageAnalysis]: Checked inductivity of 4522 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4522 trivial. 0 not checked. [2022-07-21 10:56:06,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:56:06,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327672520] [2022-07-21 10:56:06,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327672520] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:56:06,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:56:06,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 10:56:06,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002986901] [2022-07-21 10:56:06,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:56:06,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 10:56:06,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:56:06,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 10:56:06,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:56:06,320 INFO L87 Difference]: Start difference. First operand 2712 states and 3873 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2022-07-21 10:56:11,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:56:11,468 INFO L93 Difference]: Finished difference Result 10057 states and 15414 transitions. [2022-07-21 10:56:11,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 10:56:11,469 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 329 [2022-07-21 10:56:11,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:56:11,507 INFO L225 Difference]: With dead ends: 10057 [2022-07-21 10:56:11,507 INFO L226 Difference]: Without dead ends: 7432 [2022-07-21 10:56:11,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 101 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 10:56:11,524 INFO L413 NwaCegarLoop]: 2329 mSDtfsCounter, 5144 mSDsluCounter, 3388 mSDsCounter, 0 mSdLazyCounter, 2761 mSolverCounterSat, 1988 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5293 SdHoareTripleChecker+Valid, 5717 SdHoareTripleChecker+Invalid, 4749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1988 IncrementalHoareTripleChecker+Valid, 2761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-07-21 10:56:11,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5293 Valid, 5717 Invalid, 4749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1988 Valid, 2761 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-07-21 10:56:11,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7432 states. [2022-07-21 10:56:11,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7432 to 6032. [2022-07-21 10:56:11,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6032 states, 4572 states have (on average 1.3906386701662292) internal successors, (6358), 4672 states have internal predecessors, (6358), 1053 states have call successors, (1053), 315 states have call predecessors, (1053), 406 states have return successors, (1518), 1084 states have call predecessors, (1518), 1048 states have call successors, (1518) [2022-07-21 10:56:11,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6032 states to 6032 states and 8929 transitions. [2022-07-21 10:56:11,730 INFO L78 Accepts]: Start accepts. Automaton has 6032 states and 8929 transitions. Word has length 329 [2022-07-21 10:56:11,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:56:11,730 INFO L495 AbstractCegarLoop]: Abstraction has 6032 states and 8929 transitions. [2022-07-21 10:56:11,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2022-07-21 10:56:11,731 INFO L276 IsEmpty]: Start isEmpty. Operand 6032 states and 8929 transitions. [2022-07-21 10:56:11,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-07-21 10:56:11,737 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:56:11,737 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 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] [2022-07-21 10:56:11,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 10:56:11,737 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:56:11,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:56:11,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1091192360, now seen corresponding path program 1 times [2022-07-21 10:56:11,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:56:11,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150606445] [2022-07-21 10:56:11,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:56:11,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:56:11,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:12,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:56:12,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:56:12,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:56:12,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:56:12,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:56:12,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:56:12,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:56:12,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:56:12,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:56:12,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:56:12,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:56:12,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:56:12,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:56:12,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:56:12,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:56:12,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:56:12,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:56:12,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:56:12,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:56:12,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:56:12,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:56:12,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:56:12,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:56:12,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 10:56:12,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-21 10:56:12,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 10:56:12,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 10:56:12,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-21 10:56:12,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 10:56:12,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-21 10:56:12,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 10:56:12,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-21 10:56:12,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-21 10:56:12,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-21 10:56:12,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-21 10:56:12,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 10:56:12,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-21 10:56:12,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-21 10:56:12,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-21 10:56:12,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-21 10:56:12,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-07-21 10:56:12,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-21 10:56:12,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-07-21 10:56:12,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-07-21 10:56:12,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-21 10:56:12,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-07-21 10:56:12,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-21 10:56:12,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-21 10:56:12,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-07-21 10:56:12,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,442 INFO L134 CoverageAnalysis]: Checked inductivity of 4522 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4522 trivial. 0 not checked. [2022-07-21 10:56:12,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:56:12,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150606445] [2022-07-21 10:56:12,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150606445] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:56:12,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:56:12,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 10:56:12,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735552835] [2022-07-21 10:56:12,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:56:12,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 10:56:12,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:56:12,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 10:56:12,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:56:12,445 INFO L87 Difference]: Start difference. First operand 6032 states and 8929 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2022-07-21 10:56:15,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:56:15,617 INFO L93 Difference]: Finished difference Result 7424 states and 11366 transitions. [2022-07-21 10:56:15,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 10:56:15,618 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 330 [2022-07-21 10:56:15,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:56:15,662 INFO L225 Difference]: With dead ends: 7424 [2022-07-21 10:56:15,662 INFO L226 Difference]: Without dead ends: 7421 [2022-07-21 10:56:15,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 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 10:56:15,668 INFO L413 NwaCegarLoop]: 2051 mSDtfsCounter, 3451 mSDsluCounter, 1704 mSDsCounter, 0 mSdLazyCounter, 1435 mSolverCounterSat, 1147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3596 SdHoareTripleChecker+Valid, 3755 SdHoareTripleChecker+Invalid, 2582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1147 IncrementalHoareTripleChecker+Valid, 1435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-07-21 10:56:15,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3596 Valid, 3755 Invalid, 2582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1147 Valid, 1435 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-07-21 10:56:15,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7421 states. [2022-07-21 10:56:15,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7421 to 6031. [2022-07-21 10:56:15,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6031 states, 4572 states have (on average 1.3904199475065617) internal successors, (6357), 4671 states have internal predecessors, (6357), 1052 states have call successors, (1052), 315 states have call predecessors, (1052), 406 states have return successors, (1518), 1084 states have call predecessors, (1518), 1048 states have call successors, (1518) [2022-07-21 10:56:15,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6031 states to 6031 states and 8927 transitions. [2022-07-21 10:56:15,963 INFO L78 Accepts]: Start accepts. Automaton has 6031 states and 8927 transitions. Word has length 330 [2022-07-21 10:56:15,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:56:15,964 INFO L495 AbstractCegarLoop]: Abstraction has 6031 states and 8927 transitions. [2022-07-21 10:56:15,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2022-07-21 10:56:15,965 INFO L276 IsEmpty]: Start isEmpty. Operand 6031 states and 8927 transitions. [2022-07-21 10:56:15,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-07-21 10:56:15,973 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:56:15,973 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 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] [2022-07-21 10:56:15,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 10:56:15,974 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:56:15,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:56:15,974 INFO L85 PathProgramCache]: Analyzing trace with hash -533483512, now seen corresponding path program 1 times [2022-07-21 10:56:15,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:56:15,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732201266] [2022-07-21 10:56:15,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:56:15,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:56:16,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:16,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:56:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:56:16,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:56:16,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:56:16,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:56:16,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:56:16,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:56:16,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:56:16,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:56:16,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:56:16,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:56:16,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:56:16,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:56:16,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:56:16,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:56:16,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:56:16,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:56:16,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:56:16,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:56:16,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:56:16,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:56:16,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:56:16,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:56:16,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 10:56:16,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-21 10:56:16,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 10:56:16,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 10:56:16,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-21 10:56:16,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 10:56:16,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-21 10:56:16,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 10:56:16,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-21 10:56:16,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-21 10:56:16,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-21 10:56:16,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-21 10:56:16,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 10:56:16,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-21 10:56:16,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-21 10:56:16,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-21 10:56:16,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-21 10:56:16,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-07-21 10:56:16,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-21 10:56:16,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-07-21 10:56:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-07-21 10:56:16,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-21 10:56:16,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-07-21 10:56:16,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-21 10:56:16,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-21 10:56:16,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-07-21 10:56:16,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:16,642 INFO L134 CoverageAnalysis]: Checked inductivity of 4522 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4522 trivial. 0 not checked. [2022-07-21 10:56:16,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:56:16,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732201266] [2022-07-21 10:56:16,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732201266] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:56:16,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:56:16,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 10:56:16,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756014813] [2022-07-21 10:56:16,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:56:16,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 10:56:16,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:56:16,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 10:56:16,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:56:16,644 INFO L87 Difference]: Start difference. First operand 6031 states and 8927 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2022-07-21 10:56:19,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:56:19,873 INFO L93 Difference]: Finished difference Result 7423 states and 11364 transitions. [2022-07-21 10:56:19,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 10:56:19,873 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 331 [2022-07-21 10:56:19,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:56:19,910 INFO L225 Difference]: With dead ends: 7423 [2022-07-21 10:56:19,910 INFO L226 Difference]: Without dead ends: 7420 [2022-07-21 10:56:19,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 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 10:56:19,916 INFO L413 NwaCegarLoop]: 2058 mSDtfsCounter, 3431 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 1433 mSolverCounterSat, 1136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3578 SdHoareTripleChecker+Valid, 3759 SdHoareTripleChecker+Invalid, 2569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1136 IncrementalHoareTripleChecker+Valid, 1433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:56:19,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3578 Valid, 3759 Invalid, 2569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1136 Valid, 1433 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-07-21 10:56:19,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7420 states. [2022-07-21 10:56:20,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7420 to 6030. [2022-07-21 10:56:20,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6030 states, 4572 states have (on average 1.3902012248468942) internal successors, (6356), 4670 states have internal predecessors, (6356), 1051 states have call successors, (1051), 315 states have call predecessors, (1051), 406 states have return successors, (1518), 1084 states have call predecessors, (1518), 1048 states have call successors, (1518) [2022-07-21 10:56:20,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6030 states to 6030 states and 8925 transitions. [2022-07-21 10:56:20,200 INFO L78 Accepts]: Start accepts. Automaton has 6030 states and 8925 transitions. Word has length 331 [2022-07-21 10:56:20,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:56:20,201 INFO L495 AbstractCegarLoop]: Abstraction has 6030 states and 8925 transitions. [2022-07-21 10:56:20,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2022-07-21 10:56:20,204 INFO L276 IsEmpty]: Start isEmpty. Operand 6030 states and 8925 transitions. [2022-07-21 10:56:20,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2022-07-21 10:56:20,216 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:56:20,216 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 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] [2022-07-21 10:56:20,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 10:56:20,217 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:56:20,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:56:20,217 INFO L85 PathProgramCache]: Analyzing trace with hash 641176875, now seen corresponding path program 1 times [2022-07-21 10:56:20,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:56:20,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089014639] [2022-07-21 10:56:20,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:56:20,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:56:20,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:20,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:56:20,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:56:20,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:56:20,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:56:20,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:56:20,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:56:20,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:56:20,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:56:20,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:56:20,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:56:20,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:56:20,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:56:20,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:56:20,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:56:20,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:56:20,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:56:20,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:56:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:56:20,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:56:20,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:56:20,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:56:20,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:56:20,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:56:20,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 10:56:20,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-21 10:56:20,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 10:56:20,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 10:56:20,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-21 10:56:20,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 10:56:20,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-21 10:56:20,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 10:56:20,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-21 10:56:20,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-21 10:56:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-21 10:56:20,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-21 10:56:20,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 10:56:20,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-21 10:56:20,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-21 10:56:20,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-21 10:56:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-21 10:56:20,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-07-21 10:56:20,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-21 10:56:20,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-07-21 10:56:20,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-07-21 10:56:20,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-21 10:56:20,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-07-21 10:56:20,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-21 10:56:20,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-21 10:56:20,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-07-21 10:56:20,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:20,766 INFO L134 CoverageAnalysis]: Checked inductivity of 4522 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4522 trivial. 0 not checked. [2022-07-21 10:56:20,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:56:20,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089014639] [2022-07-21 10:56:20,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089014639] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:56:20,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:56:20,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 10:56:20,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427175615] [2022-07-21 10:56:20,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:56:20,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 10:56:20,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:56:20,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 10:56:20,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:56:20,769 INFO L87 Difference]: Start difference. First operand 6030 states and 8925 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2022-07-21 10:56:24,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:56:24,255 INFO L93 Difference]: Finished difference Result 7422 states and 11362 transitions. [2022-07-21 10:56:24,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 10:56:24,256 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 332 [2022-07-21 10:56:24,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:56:24,282 INFO L225 Difference]: With dead ends: 7422 [2022-07-21 10:56:24,282 INFO L226 Difference]: Without dead ends: 7419 [2022-07-21 10:56:24,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 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 10:56:24,287 INFO L413 NwaCegarLoop]: 2039 mSDtfsCounter, 3421 mSDsluCounter, 1700 mSDsCounter, 0 mSdLazyCounter, 1427 mSolverCounterSat, 1146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3575 SdHoareTripleChecker+Valid, 3739 SdHoareTripleChecker+Invalid, 2573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1146 IncrementalHoareTripleChecker+Valid, 1427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-07-21 10:56:24,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3575 Valid, 3739 Invalid, 2573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1146 Valid, 1427 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-07-21 10:56:24,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7419 states. [2022-07-21 10:56:24,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7419 to 6029. [2022-07-21 10:56:24,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6029 states, 4572 states have (on average 1.3899825021872265) internal successors, (6355), 4669 states have internal predecessors, (6355), 1050 states have call successors, (1050), 315 states have call predecessors, (1050), 406 states have return successors, (1518), 1084 states have call predecessors, (1518), 1048 states have call successors, (1518) [2022-07-21 10:56:24,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6029 states to 6029 states and 8923 transitions. [2022-07-21 10:56:24,481 INFO L78 Accepts]: Start accepts. Automaton has 6029 states and 8923 transitions. Word has length 332 [2022-07-21 10:56:24,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:56:24,483 INFO L495 AbstractCegarLoop]: Abstraction has 6029 states and 8923 transitions. [2022-07-21 10:56:24,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2022-07-21 10:56:24,483 INFO L276 IsEmpty]: Start isEmpty. Operand 6029 states and 8923 transitions. [2022-07-21 10:56:24,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2022-07-21 10:56:24,489 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:56:24,489 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 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] [2022-07-21 10:56:24,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 10:56:24,490 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:56:24,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:56:24,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1599051925, now seen corresponding path program 1 times [2022-07-21 10:56:24,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:56:24,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473793865] [2022-07-21 10:56:24,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:56:24,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:56:24,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:24,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:24,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:24,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:56:24,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:24,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:56:24,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:24,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:56:24,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:24,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:56:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:24,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:56:24,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:24,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:56:24,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:24,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:56:24,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:24,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:56:24,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:24,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:56:24,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:24,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:56:24,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:24,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:56:24,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:24,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:56:24,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:24,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:56:24,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:24,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:56:24,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:24,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:56:24,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:24,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:56:24,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:24,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:56:24,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:24,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:56:24,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:24,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:56:24,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:24,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:56:24,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:24,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:56:24,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:24,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:56:24,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:24,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:56:24,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:24,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 10:56:25,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:25,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-21 10:56:25,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:25,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 10:56:25,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:25,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 10:56:25,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:25,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-21 10:56:25,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:25,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 10:56:25,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:25,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-21 10:56:25,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:25,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 10:56:25,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:25,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-21 10:56:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:25,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-21 10:56:25,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:25,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-21 10:56:25,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:25,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-21 10:56:25,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:25,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 10:56:25,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:25,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-21 10:56:25,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:25,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-21 10:56:25,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:25,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-21 10:56:25,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:25,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-21 10:56:25,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:25,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-07-21 10:56:25,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:25,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-21 10:56:25,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:25,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-07-21 10:56:25,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:25,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-07-21 10:56:25,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:25,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-21 10:56:25,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:25,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-07-21 10:56:25,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:25,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-21 10:56:25,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:25,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-21 10:56:25,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:25,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-07-21 10:56:25,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:25,305 INFO L134 CoverageAnalysis]: Checked inductivity of 4522 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4522 trivial. 0 not checked. [2022-07-21 10:56:25,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:56:25,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473793865] [2022-07-21 10:56:25,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473793865] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:56:25,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:56:25,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 10:56:25,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886508303] [2022-07-21 10:56:25,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:56:25,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 10:56:25,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:56:25,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 10:56:25,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:56:25,309 INFO L87 Difference]: Start difference. First operand 6029 states and 8923 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2022-07-21 10:56:29,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:56:29,087 INFO L93 Difference]: Finished difference Result 7421 states and 11360 transitions. [2022-07-21 10:56:29,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 10:56:29,088 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 333 [2022-07-21 10:56:29,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:56:29,118 INFO L225 Difference]: With dead ends: 7421 [2022-07-21 10:56:29,119 INFO L226 Difference]: Without dead ends: 7411 [2022-07-21 10:56:29,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 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 10:56:29,126 INFO L413 NwaCegarLoop]: 2036 mSDtfsCounter, 3434 mSDsluCounter, 1698 mSDsCounter, 0 mSdLazyCounter, 1422 mSolverCounterSat, 1139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3585 SdHoareTripleChecker+Valid, 3734 SdHoareTripleChecker+Invalid, 2561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1139 IncrementalHoareTripleChecker+Valid, 1422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-07-21 10:56:29,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3585 Valid, 3734 Invalid, 2561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1139 Valid, 1422 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-07-21 10:56:29,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7411 states. [2022-07-21 10:56:29,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7411 to 6021. [2022-07-21 10:56:29,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6021 states, 4565 states have (on average 1.3901423877327492) internal successors, (6346), 4661 states have internal predecessors, (6346), 1049 states have call successors, (1049), 315 states have call predecessors, (1049), 406 states have return successors, (1518), 1084 states have call predecessors, (1518), 1048 states have call successors, (1518) [2022-07-21 10:56:29,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6021 states to 6021 states and 8913 transitions. [2022-07-21 10:56:29,353 INFO L78 Accepts]: Start accepts. Automaton has 6021 states and 8913 transitions. Word has length 333 [2022-07-21 10:56:29,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:56:29,354 INFO L495 AbstractCegarLoop]: Abstraction has 6021 states and 8913 transitions. [2022-07-21 10:56:29,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2022-07-21 10:56:29,354 INFO L276 IsEmpty]: Start isEmpty. Operand 6021 states and 8913 transitions. [2022-07-21 10:56:29,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2022-07-21 10:56:29,429 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:56:29,429 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:56:29,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 10:56:29,430 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:56:29,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:56:29,431 INFO L85 PathProgramCache]: Analyzing trace with hash -2060078146, now seen corresponding path program 1 times [2022-07-21 10:56:29,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:56:29,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271177165] [2022-07-21 10:56:29,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:56:29,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:56:29,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:29,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:29,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:29,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:56:29,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:29,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:56:29,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:29,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:56:29,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:29,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:56:29,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:29,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:56:29,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:29,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:56:29,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:29,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:56:29,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:29,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:56:29,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:29,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:56:29,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:29,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:56:29,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:29,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:56:29,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:29,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:56:29,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:29,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:56:29,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:29,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:56:29,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:29,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:56:29,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:29,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:56:29,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:29,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:56:29,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:29,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:56:29,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:29,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:56:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:29,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:56:29,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:29,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:56:29,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:29,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:56:29,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:29,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:56:29,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:29,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 10:56:29,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:29,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-21 10:56:29,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:29,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 10:56:29,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:29,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 10:56:29,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:29,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-21 10:56:29,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 10:56:30,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-21 10:56:30,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 10:56:30,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-21 10:56:30,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-21 10:56:30,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-21 10:56:30,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-21 10:56:30,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 10:56:30,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-21 10:56:30,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-21 10:56:30,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-21 10:56:30,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-21 10:56:30,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-07-21 10:56:30,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-07-21 10:56:30,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:30,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:30,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:56:30,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 10:56:30,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:56:30,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:30,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:30,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 10:56:30,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-21 10:56:30,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 10:56:30,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 10:56:30,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:30,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:30,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 10:56:30,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 10:56:30,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 10:56:30,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 10:56:30,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-21 10:56:30,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2022-07-21 10:56:30,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2022-07-21 10:56:30,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2022-07-21 10:56:30,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2022-07-21 10:56:30,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2022-07-21 10:56:30,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2022-07-21 10:56:30,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 481 [2022-07-21 10:56:30,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2022-07-21 10:56:30,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,552 INFO L134 CoverageAnalysis]: Checked inductivity of 4575 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4567 trivial. 0 not checked. [2022-07-21 10:56:30,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:56:30,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271177165] [2022-07-21 10:56:30,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271177165] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:56:30,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:56:30,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-21 10:56:30,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78551477] [2022-07-21 10:56:30,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:56:30,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 10:56:30,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:56:30,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 10:56:30,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-07-21 10:56:30,555 INFO L87 Difference]: Start difference. First operand 6021 states and 8913 transitions. Second operand has 10 states, 10 states have (on average 20.3) internal successors, (203), 3 states have internal predecessors, (203), 2 states have call successors, (70), 9 states have call predecessors, (70), 1 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2022-07-21 10:56:41,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:56:41,005 INFO L93 Difference]: Finished difference Result 20233 states and 32480 transitions. [2022-07-21 10:56:41,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-21 10:56:41,005 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 20.3) internal successors, (203), 3 states have internal predecessors, (203), 2 states have call successors, (70), 9 states have call predecessors, (70), 1 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) Word has length 508 [2022-07-21 10:56:41,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:56:41,088 INFO L225 Difference]: With dead ends: 20233 [2022-07-21 10:56:41,088 INFO L226 Difference]: Without dead ends: 14299 [2022-07-21 10:56:41,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=190, Invalid=460, Unknown=0, NotChecked=0, Total=650 [2022-07-21 10:56:41,119 INFO L413 NwaCegarLoop]: 2201 mSDtfsCounter, 12073 mSDsluCounter, 5433 mSDsCounter, 0 mSdLazyCounter, 5732 mSolverCounterSat, 6483 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12392 SdHoareTripleChecker+Valid, 7634 SdHoareTripleChecker+Invalid, 12215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6483 IncrementalHoareTripleChecker+Valid, 5732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2022-07-21 10:56:41,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12392 Valid, 7634 Invalid, 12215 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6483 Valid, 5732 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2022-07-21 10:56:41,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14299 states. [2022-07-21 10:56:41,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14299 to 9667. [2022-07-21 10:56:41,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9667 states, 7265 states have (on average 1.3710942876806607) internal successors, (9961), 7431 states have internal predecessors, (9961), 1612 states have call successors, (1612), 444 states have call predecessors, (1612), 789 states have return successors, (3011), 1869 states have call predecessors, (3011), 1611 states have call successors, (3011) [2022-07-21 10:56:41,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9667 states to 9667 states and 14584 transitions. [2022-07-21 10:56:41,661 INFO L78 Accepts]: Start accepts. Automaton has 9667 states and 14584 transitions. Word has length 508 [2022-07-21 10:56:41,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:56:41,662 INFO L495 AbstractCegarLoop]: Abstraction has 9667 states and 14584 transitions. [2022-07-21 10:56:41,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 20.3) internal successors, (203), 3 states have internal predecessors, (203), 2 states have call successors, (70), 9 states have call predecessors, (70), 1 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2022-07-21 10:56:41,662 INFO L276 IsEmpty]: Start isEmpty. Operand 9667 states and 14584 transitions. [2022-07-21 10:56:41,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 513 [2022-07-21 10:56:41,689 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:56:41,689 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:56:41,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 10:56:41,690 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:56:41,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:56:41,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1502957395, now seen corresponding path program 1 times [2022-07-21 10:56:41,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:56:41,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732000162] [2022-07-21 10:56:41,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:56:41,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:56:41,765 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 10:56:41,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [556766486] [2022-07-21 10:56:41,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:56:41,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:56:41,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:56:41,767 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 10:56:41,769 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 10:56:42,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:42,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 4747 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 10:56:42,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:56:43,076 INFO L134 CoverageAnalysis]: Checked inductivity of 4595 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 4565 trivial. 0 not checked. [2022-07-21 10:56:43,078 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:56:43,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:56:43,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732000162] [2022-07-21 10:56:43,078 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 10:56:43,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556766486] [2022-07-21 10:56:43,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [556766486] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:56:43,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:56:43,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 10:56:43,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091922196] [2022-07-21 10:56:43,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:56:43,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:56:43,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:56:43,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:56:43,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 10:56:43,081 INFO L87 Difference]: Start difference. First operand 9667 states and 14584 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 2 states have internal predecessors, (207), 2 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2022-07-21 10:56:43,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:56:43,533 INFO L93 Difference]: Finished difference Result 19204 states and 30545 transitions. [2022-07-21 10:56:43,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:56:43,533 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 2 states have internal predecessors, (207), 2 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) Word has length 512 [2022-07-21 10:56:43,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:56:43,575 INFO L225 Difference]: With dead ends: 19204 [2022-07-21 10:56:43,575 INFO L226 Difference]: Without dead ends: 9631 [2022-07-21 10:56:43,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 511 GetRequests, 510 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 10:56:43,620 INFO L413 NwaCegarLoop]: 1934 mSDtfsCounter, 1682 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1682 SdHoareTripleChecker+Valid, 1934 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 10:56:43,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1682 Valid, 1934 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 10:56:43,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9631 states. [2022-07-21 10:56:44,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9631 to 9631. [2022-07-21 10:56:44,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9631 states, 7247 states have (on average 1.3350351869739203) internal successors, (9675), 7413 states have internal predecessors, (9675), 1594 states have call successors, (1594), 444 states have call predecessors, (1594), 789 states have return successors, (2993), 1851 states have call predecessors, (2993), 1593 states have call successors, (2993) [2022-07-21 10:56:44,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9631 states to 9631 states and 14262 transitions. [2022-07-21 10:56:44,120 INFO L78 Accepts]: Start accepts. Automaton has 9631 states and 14262 transitions. Word has length 512 [2022-07-21 10:56:44,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:56:44,121 INFO L495 AbstractCegarLoop]: Abstraction has 9631 states and 14262 transitions. [2022-07-21 10:56:44,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 2 states have internal predecessors, (207), 2 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2022-07-21 10:56:44,122 INFO L276 IsEmpty]: Start isEmpty. Operand 9631 states and 14262 transitions. [2022-07-21 10:56:44,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2022-07-21 10:56:44,152 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:56:44,153 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:56:44,192 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 10:56:44,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:56:44,366 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:56:44,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:56:44,366 INFO L85 PathProgramCache]: Analyzing trace with hash 139839090, now seen corresponding path program 1 times [2022-07-21 10:56:44,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:56:44,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167091526] [2022-07-21 10:56:44,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:56:44,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:56:44,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:44,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:56:44,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:56:44,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:56:44,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:56:44,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:56:44,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:56:44,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:56:44,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:56:44,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:56:44,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:56:44,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:56:44,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:56:44,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:56:44,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:56:44,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:56:44,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:56:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:56:44,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:56:44,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:56:44,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:56:44,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:56:44,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:56:44,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:56:44,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 10:56:44,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-21 10:56:44,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 10:56:44,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 10:56:44,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-21 10:56:44,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 10:56:44,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-21 10:56:44,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 10:56:44,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-21 10:56:44,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-21 10:56:44,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-21 10:56:44,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-21 10:56:44,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 10:56:44,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-21 10:56:44,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-21 10:56:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-21 10:56:44,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-21 10:56:44,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-07-21 10:56:44,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-21 10:56:44,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-07-21 10:56:44,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-07-21 10:56:44,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-21 10:56:44,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-07-21 10:56:44,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-21 10:56:44,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-21 10:56:44,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-07-21 10:56:44,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-07-21 10:56:44,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:44,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:44,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:45,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:56:45,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:56:45,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 10:56:45,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:45,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-21 10:56:45,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:56:45,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:56:45,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:45,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:45,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 10:56:45,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 10:56:45,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 10:56:45,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:45,259 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 7 [2022-07-21 10:56:45,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-21 10:56:45,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:45,274 INFO L134 CoverageAnalysis]: Checked inductivity of 4554 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4544 trivial. 0 not checked. [2022-07-21 10:56:45,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:56:45,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167091526] [2022-07-21 10:56:45,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167091526] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:56:45,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:56:45,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-21 10:56:45,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859128528] [2022-07-21 10:56:45,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:56:45,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-21 10:56:45,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:56:45,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-21 10:56:45,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-07-21 10:56:45,276 INFO L87 Difference]: Start difference. First operand 9631 states and 14262 transitions. Second operand has 14 states, 14 states have (on average 13.142857142857142) internal successors, (184), 7 states have internal predecessors, (184), 3 states have call successors, (69), 9 states have call predecessors, (69), 2 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) [2022-07-21 10:56:56,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:56:56,768 INFO L93 Difference]: Finished difference Result 22225 states and 35089 transitions. [2022-07-21 10:56:56,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-21 10:56:56,769 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 13.142857142857142) internal successors, (184), 7 states have internal predecessors, (184), 3 states have call successors, (69), 9 states have call predecessors, (69), 2 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) Word has length 477 [2022-07-21 10:56:56,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:56:56,840 INFO L225 Difference]: With dead ends: 22225 [2022-07-21 10:56:56,840 INFO L226 Difference]: Without dead ends: 12688 [2022-07-21 10:56:56,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=168, Invalid=482, Unknown=0, NotChecked=0, Total=650 [2022-07-21 10:56:56,874 INFO L413 NwaCegarLoop]: 1968 mSDtfsCounter, 2442 mSDsluCounter, 7904 mSDsCounter, 0 mSdLazyCounter, 8393 mSolverCounterSat, 1211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2579 SdHoareTripleChecker+Valid, 9872 SdHoareTripleChecker+Invalid, 9604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1211 IncrementalHoareTripleChecker+Valid, 8393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-07-21 10:56:56,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2579 Valid, 9872 Invalid, 9604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1211 Valid, 8393 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2022-07-21 10:56:56,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12688 states. [2022-07-21 10:56:57,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12688 to 9637. [2022-07-21 10:56:57,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9637 states, 7253 states have (on average 1.3347580311595202) internal successors, (9681), 7419 states have internal predecessors, (9681), 1594 states have call successors, (1594), 444 states have call predecessors, (1594), 789 states have return successors, (2993), 1851 states have call predecessors, (2993), 1593 states have call successors, (2993) [2022-07-21 10:56:57,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9637 states to 9637 states and 14268 transitions. [2022-07-21 10:56:57,348 INFO L78 Accepts]: Start accepts. Automaton has 9637 states and 14268 transitions. Word has length 477 [2022-07-21 10:56:57,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:56:57,348 INFO L495 AbstractCegarLoop]: Abstraction has 9637 states and 14268 transitions. [2022-07-21 10:56:57,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 13.142857142857142) internal successors, (184), 7 states have internal predecessors, (184), 3 states have call successors, (69), 9 states have call predecessors, (69), 2 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) [2022-07-21 10:56:57,349 INFO L276 IsEmpty]: Start isEmpty. Operand 9637 states and 14268 transitions. [2022-07-21 10:56:57,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2022-07-21 10:56:57,368 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:56:57,368 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:56:57,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 10:56:57,369 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:56:57,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:56:57,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1805765777, now seen corresponding path program 1 times [2022-07-21 10:56:57,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:56:57,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201569742] [2022-07-21 10:56:57,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:56:57,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:56:57,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:57,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:56:57,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:56:57,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:56:57,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:56:57,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:56:57,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:56:57,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:56:57,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:56:57,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:56:57,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:56:57,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:56:57,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:56:57,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:56:57,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:56:57,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:56:57,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:56:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:56:57,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:56:57,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:56:57,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:56:57,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:56:57,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:56:57,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:56:57,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 10:56:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-21 10:56:57,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 10:56:57,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 10:56:57,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-21 10:56:57,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 10:56:57,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-21 10:56:57,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 10:56:57,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-21 10:56:57,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-21 10:56:57,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-21 10:56:57,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-21 10:56:57,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 10:56:57,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-21 10:56:57,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-21 10:56:57,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-21 10:56:57,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-21 10:56:57,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-07-21 10:56:57,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-21 10:56:57,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-07-21 10:56:57,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-07-21 10:56:57,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-21 10:56:57,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-07-21 10:56:57,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-21 10:56:57,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-21 10:56:57,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-07-21 10:56:57,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-07-21 10:56:57,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:57,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:58,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:58,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:58,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:58,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:56:58,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:58,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:58,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:58,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:56:58,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:58,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 10:56:58,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:58,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:58,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:58,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 10:56:58,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:58,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 10:56:58,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:58,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 10:56:58,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:58,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:58,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:58,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:58,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:58,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:58,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:58,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 10:56:58,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:58,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:56:58,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:58,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 10:56:58,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:58,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:56:58,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:58,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 10:56:58,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:58,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 10:56:58,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:58,362 INFO L134 CoverageAnalysis]: Checked inductivity of 4560 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 4544 trivial. 0 not checked. [2022-07-21 10:56:58,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:56:58,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201569742] [2022-07-21 10:56:58,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201569742] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:56:58,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:56:58,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 10:56:58,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873202086] [2022-07-21 10:56:58,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:56:58,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 10:56:58,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:56:58,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 10:56:58,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-07-21 10:56:58,365 INFO L87 Difference]: Start difference. First operand 9637 states and 14268 transitions. Second operand has 12 states, 12 states have (on average 16.083333333333332) internal successors, (193), 4 states have internal predecessors, (193), 3 states have call successors, (70), 9 states have call predecessors, (70), 3 states have return successors, (69), 4 states have call predecessors, (69), 3 states have call successors, (69) [2022-07-21 10:57:06,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:57:06,032 INFO L93 Difference]: Finished difference Result 21364 states and 32759 transitions. [2022-07-21 10:57:06,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 10:57:06,033 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 16.083333333333332) internal successors, (193), 4 states have internal predecessors, (193), 3 states have call successors, (70), 9 states have call predecessors, (70), 3 states have return successors, (69), 4 states have call predecessors, (69), 3 states have call successors, (69) Word has length 491 [2022-07-21 10:57:06,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:57:06,092 INFO L225 Difference]: With dead ends: 21364 [2022-07-21 10:57:06,092 INFO L226 Difference]: Without dead ends: 11821 [2022-07-21 10:57:06,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2022-07-21 10:57:06,124 INFO L413 NwaCegarLoop]: 1974 mSDtfsCounter, 4327 mSDsluCounter, 5592 mSDsCounter, 0 mSdLazyCounter, 5395 mSolverCounterSat, 2497 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4460 SdHoareTripleChecker+Valid, 7566 SdHoareTripleChecker+Invalid, 7892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2497 IncrementalHoareTripleChecker+Valid, 5395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-07-21 10:57:06,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4460 Valid, 7566 Invalid, 7892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2497 Valid, 5395 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2022-07-21 10:57:06,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11821 states. [2022-07-21 10:57:06,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11821 to 10030. [2022-07-21 10:57:06,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10030 states, 7523 states have (on average 1.329522796756613) internal successors, (10002), 7692 states have internal predecessors, (10002), 1660 states have call successors, (1660), 444 states have call predecessors, (1660), 846 states have return successors, (3256), 1974 states have call predecessors, (3256), 1659 states have call successors, (3256) [2022-07-21 10:57:06,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10030 states to 10030 states and 14918 transitions. [2022-07-21 10:57:06,591 INFO L78 Accepts]: Start accepts. Automaton has 10030 states and 14918 transitions. Word has length 491 [2022-07-21 10:57:06,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:57:06,592 INFO L495 AbstractCegarLoop]: Abstraction has 10030 states and 14918 transitions. [2022-07-21 10:57:06,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 16.083333333333332) internal successors, (193), 4 states have internal predecessors, (193), 3 states have call successors, (70), 9 states have call predecessors, (70), 3 states have return successors, (69), 4 states have call predecessors, (69), 3 states have call successors, (69) [2022-07-21 10:57:06,593 INFO L276 IsEmpty]: Start isEmpty. Operand 10030 states and 14918 transitions. [2022-07-21 10:57:06,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2022-07-21 10:57:06,611 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:57:06,612 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:57:06,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 10:57:06,612 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:57:06,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:57:06,612 INFO L85 PathProgramCache]: Analyzing trace with hash 446438955, now seen corresponding path program 1 times [2022-07-21 10:57:06,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:57:06,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098654602] [2022-07-21 10:57:06,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:57:06,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:57:06,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:06,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:06,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:06,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:57:06,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:06,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:57:06,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:06,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:57:06,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:06,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:57:06,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:06,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:57:06,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:06,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:57:06,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:06,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:57:06,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:06,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:57:06,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:06,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:57:06,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:06,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:57:06,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:06,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:57:06,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:06,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:57:06,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:06,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:57:06,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:06,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:57:06,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:06,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:57:06,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:06,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:57:06,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:06,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:57:06,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:06,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:57:06,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:06,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:57:06,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:06,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:57:06,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:06,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:57:06,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:06,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:57:06,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:06,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:57:06,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:06,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 10:57:06,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:06,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-21 10:57:06,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:06,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 10:57:06,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:06,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 10:57:06,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:06,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-21 10:57:06,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:06,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 10:57:06,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-21 10:57:07,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 10:57:07,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-21 10:57:07,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-21 10:57:07,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-21 10:57:07,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-21 10:57:07,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 10:57:07,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-21 10:57:07,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-21 10:57:07,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-21 10:57:07,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-21 10:57:07,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-07-21 10:57:07,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-21 10:57:07,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-07-21 10:57:07,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-07-21 10:57:07,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-21 10:57:07,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-07-21 10:57:07,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-21 10:57:07,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-21 10:57:07,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-07-21 10:57:07,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-07-21 10:57:07,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:07,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:07,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:57:07,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 10:57:07,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:57:07,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:07,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:07,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 10:57:07,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-21 10:57:07,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 10:57:07,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 10:57:07,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:07,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 10:57:07,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 10:57:07,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 10:57:07,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:07,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:07,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:57:07,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 10:57:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:07,351 INFO L134 CoverageAnalysis]: Checked inductivity of 4575 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4565 trivial. 0 not checked. [2022-07-21 10:57:07,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:57:07,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098654602] [2022-07-21 10:57:07,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098654602] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:57:07,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:57:07,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-21 10:57:07,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978028909] [2022-07-21 10:57:07,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:57:07,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 10:57:07,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:57:07,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 10:57:07,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-07-21 10:57:07,354 INFO L87 Difference]: Start difference. First operand 10030 states and 14918 transitions. Second operand has 10 states, 10 states have (on average 21.0) internal successors, (210), 3 states have internal predecessors, (210), 2 states have call successors, (71), 9 states have call predecessors, (71), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2022-07-21 10:57:14,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:57:14,383 INFO L93 Difference]: Finished difference Result 23721 states and 38571 transitions. [2022-07-21 10:57:14,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 10:57:14,383 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 21.0) internal successors, (210), 3 states have internal predecessors, (210), 2 states have call successors, (71), 9 states have call predecessors, (71), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) Word has length 514 [2022-07-21 10:57:14,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:57:14,453 INFO L225 Difference]: With dead ends: 23721 [2022-07-21 10:57:14,454 INFO L226 Difference]: Without dead ends: 13785 [2022-07-21 10:57:14,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2022-07-21 10:57:14,502 INFO L413 NwaCegarLoop]: 1997 mSDtfsCounter, 4507 mSDsluCounter, 5999 mSDsCounter, 0 mSdLazyCounter, 4598 mSolverCounterSat, 2880 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4626 SdHoareTripleChecker+Valid, 7996 SdHoareTripleChecker+Invalid, 7478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2880 IncrementalHoareTripleChecker+Valid, 4598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-07-21 10:57:14,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4626 Valid, 7996 Invalid, 7478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2880 Valid, 4598 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-07-21 10:57:14,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13785 states. [2022-07-21 10:57:15,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13785 to 10042. [2022-07-21 10:57:15,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10042 states, 7535 states have (on average 1.32899800928998) internal successors, (10014), 7704 states have internal predecessors, (10014), 1660 states have call successors, (1660), 444 states have call predecessors, (1660), 846 states have return successors, (3256), 1974 states have call predecessors, (3256), 1659 states have call successors, (3256) [2022-07-21 10:57:15,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10042 states to 10042 states and 14930 transitions. [2022-07-21 10:57:15,085 INFO L78 Accepts]: Start accepts. Automaton has 10042 states and 14930 transitions. Word has length 514 [2022-07-21 10:57:15,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:57:15,086 INFO L495 AbstractCegarLoop]: Abstraction has 10042 states and 14930 transitions. [2022-07-21 10:57:15,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 21.0) internal successors, (210), 3 states have internal predecessors, (210), 2 states have call successors, (71), 9 states have call predecessors, (71), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2022-07-21 10:57:15,086 INFO L276 IsEmpty]: Start isEmpty. Operand 10042 states and 14930 transitions. [2022-07-21 10:57:15,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2022-07-21 10:57:15,106 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:57:15,106 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 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 10:57:15,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 10:57:15,106 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:57:15,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:57:15,107 INFO L85 PathProgramCache]: Analyzing trace with hash 159388955, now seen corresponding path program 1 times [2022-07-21 10:57:15,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:57:15,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745009130] [2022-07-21 10:57:15,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:57:15,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:57:15,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:15,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:57:15,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:57:15,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:57:15,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:57:15,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:57:15,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:57:15,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:57:15,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:57:15,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:57:15,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:57:15,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:57:15,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:57:15,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:57:15,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:57:15,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:57:15,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:57:15,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:57:15,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:57:15,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:57:15,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:57:15,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:57:15,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:57:15,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:57:15,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 10:57:15,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-21 10:57:15,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 10:57:15,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 10:57:15,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-21 10:57:15,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 10:57:15,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-21 10:57:15,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 10:57:15,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-21 10:57:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-21 10:57:15,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-21 10:57:15,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-21 10:57:15,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 10:57:15,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-21 10:57:15,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-21 10:57:15,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-21 10:57:15,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-21 10:57:15,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-07-21 10:57:15,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-21 10:57:15,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-07-21 10:57:15,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-07-21 10:57:15,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-21 10:57:15,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-07-21 10:57:15,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-21 10:57:15,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-21 10:57:15,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-07-21 10:57:15,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-07-21 10:57:15,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:15,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:15,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:15,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:57:15,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-21 10:57:15,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:57:15,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:15,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:15,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 10:57:15,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-21 10:57:15,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 10:57:15,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:15,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 10:57:15,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:16,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:16,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:16,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:16,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:16,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:16,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:16,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 10:57:16,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:16,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:57:16,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:16,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 10:57:16,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:16,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:16,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:16,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:16,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:16,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:57:16,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:16,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-21 10:57:16,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:16,069 INFO L134 CoverageAnalysis]: Checked inductivity of 4593 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4583 trivial. 0 not checked. [2022-07-21 10:57:16,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:57:16,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745009130] [2022-07-21 10:57:16,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745009130] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:57:16,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:57:16,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 10:57:16,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845433053] [2022-07-21 10:57:16,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:57:16,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 10:57:16,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:57:16,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 10:57:16,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-07-21 10:57:16,072 INFO L87 Difference]: Start difference. First operand 10042 states and 14930 transitions. Second operand has 12 states, 12 states have (on average 17.5) internal successors, (210), 4 states have internal predecessors, (210), 2 states have call successors, (71), 9 states have call predecessors, (71), 3 states have return successors, (70), 3 states have call predecessors, (70), 2 states have call successors, (70) [2022-07-21 10:57:25,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:57:25,076 INFO L93 Difference]: Finished difference Result 23805 states and 37790 transitions. [2022-07-21 10:57:25,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-21 10:57:25,077 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 17.5) internal successors, (210), 4 states have internal predecessors, (210), 2 states have call successors, (71), 9 states have call predecessors, (71), 3 states have return successors, (70), 3 states have call predecessors, (70), 2 states have call successors, (70) Word has length 526 [2022-07-21 10:57:25,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:57:25,146 INFO L225 Difference]: With dead ends: 23805 [2022-07-21 10:57:25,146 INFO L226 Difference]: Without dead ends: 13857 [2022-07-21 10:57:25,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2022-07-21 10:57:25,190 INFO L413 NwaCegarLoop]: 1932 mSDtfsCounter, 3867 mSDsluCounter, 8776 mSDsCounter, 0 mSdLazyCounter, 6534 mSolverCounterSat, 2130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3986 SdHoareTripleChecker+Valid, 10708 SdHoareTripleChecker+Invalid, 8664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2130 IncrementalHoareTripleChecker+Valid, 6534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:57:25,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3986 Valid, 10708 Invalid, 8664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2130 Valid, 6534 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2022-07-21 10:57:25,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13857 states. [2022-07-21 10:57:25,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13857 to 10066. [2022-07-21 10:57:25,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10066 states, 7553 states have (on average 1.3282139547199787) internal successors, (10032), 7722 states have internal predecessors, (10032), 1660 states have call successors, (1660), 444 states have call predecessors, (1660), 852 states have return successors, (3274), 1980 states have call predecessors, (3274), 1659 states have call successors, (3274) [2022-07-21 10:57:25,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10066 states to 10066 states and 14966 transitions. [2022-07-21 10:57:25,773 INFO L78 Accepts]: Start accepts. Automaton has 10066 states and 14966 transitions. Word has length 526 [2022-07-21 10:57:25,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:57:25,774 INFO L495 AbstractCegarLoop]: Abstraction has 10066 states and 14966 transitions. [2022-07-21 10:57:25,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 17.5) internal successors, (210), 4 states have internal predecessors, (210), 2 states have call successors, (71), 9 states have call predecessors, (71), 3 states have return successors, (70), 3 states have call predecessors, (70), 2 states have call successors, (70) [2022-07-21 10:57:25,774 INFO L276 IsEmpty]: Start isEmpty. Operand 10066 states and 14966 transitions. [2022-07-21 10:57:25,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 508 [2022-07-21 10:57:25,809 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:57:25,809 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:57:25,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-21 10:57:25,810 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:57:25,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:57:25,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1860270777, now seen corresponding path program 1 times [2022-07-21 10:57:25,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:57:25,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099044698] [2022-07-21 10:57:25,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:57:25,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:57:25,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:25,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:25,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:25,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:57:25,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:57:26,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:57:26,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:57:26,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:57:26,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:57:26,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:57:26,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:57:26,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:57:26,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:57:26,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:57:26,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:57:26,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:57:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:57:26,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:57:26,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:57:26,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:57:26,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:57:26,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:57:26,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:57:26,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:57:26,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:57:26,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:57:26,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 10:57:26,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-21 10:57:26,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 10:57:26,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 10:57:26,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-21 10:57:26,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 10:57:26,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-21 10:57:26,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 10:57:26,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-21 10:57:26,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-21 10:57:26,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-21 10:57:26,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-21 10:57:26,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 10:57:26,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-21 10:57:26,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-21 10:57:26,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-21 10:57:26,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-21 10:57:26,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-07-21 10:57:26,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-21 10:57:26,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-07-21 10:57:26,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-07-21 10:57:26,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-21 10:57:26,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-07-21 10:57:26,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-21 10:57:26,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-21 10:57:26,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-07-21 10:57:26,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-07-21 10:57:26,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:26,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:26,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:57:26,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:57:26,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 10:57:26,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:26,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:26,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:57:26,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:57:26,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 10:57:26,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:57:26,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:57:26,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:57:26,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:26,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:26,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 10:57:26,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 10:57:26,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 10:57:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:26,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:26,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:57:26,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-21 10:57:26,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:26,803 INFO L134 CoverageAnalysis]: Checked inductivity of 4557 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4547 trivial. 0 not checked. [2022-07-21 10:57:26,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:57:26,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099044698] [2022-07-21 10:57:26,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099044698] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:57:26,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:57:26,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-07-21 10:57:26,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693631729] [2022-07-21 10:57:26,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:57:26,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-21 10:57:26,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:57:26,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-21 10:57:26,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2022-07-21 10:57:26,805 INFO L87 Difference]: Start difference. First operand 10066 states and 14966 transitions. Second operand has 17 states, 17 states have (on average 11.941176470588236) internal successors, (203), 9 states have internal predecessors, (203), 5 states have call successors, (74), 10 states have call predecessors, (74), 4 states have return successors, (73), 5 states have call predecessors, (73), 5 states have call successors, (73) [2022-07-21 10:57:42,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:57:42,661 INFO L93 Difference]: Finished difference Result 22708 states and 34518 transitions. [2022-07-21 10:57:42,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-07-21 10:57:42,671 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 11.941176470588236) internal successors, (203), 9 states have internal predecessors, (203), 5 states have call successors, (74), 10 states have call predecessors, (74), 4 states have return successors, (73), 5 states have call predecessors, (73), 5 states have call successors, (73) Word has length 507 [2022-07-21 10:57:42,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:57:42,726 INFO L225 Difference]: With dead ends: 22708 [2022-07-21 10:57:42,727 INFO L226 Difference]: Without dead ends: 12736 [2022-07-21 10:57:42,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=254, Invalid=802, Unknown=0, NotChecked=0, Total=1056 [2022-07-21 10:57:42,759 INFO L413 NwaCegarLoop]: 1978 mSDtfsCounter, 5116 mSDsluCounter, 7512 mSDsCounter, 0 mSdLazyCounter, 8994 mSolverCounterSat, 2911 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5253 SdHoareTripleChecker+Valid, 9490 SdHoareTripleChecker+Invalid, 11905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2911 IncrementalHoareTripleChecker+Valid, 8994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2022-07-21 10:57:42,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5253 Valid, 9490 Invalid, 11905 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2911 Valid, 8994 Invalid, 0 Unknown, 0 Unchecked, 14.6s Time] [2022-07-21 10:57:42,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12736 states. [2022-07-21 10:57:43,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12736 to 10504. [2022-07-21 10:57:43,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10504 states, 7862 states have (on average 1.3271432205545663) internal successors, (10434), 8043 states have internal predecessors, (10434), 1738 states have call successors, (1738), 444 states have call predecessors, (1738), 903 states have return successors, (3910), 2097 states have call predecessors, (3910), 1737 states have call successors, (3910) [2022-07-21 10:57:43,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10504 states to 10504 states and 16082 transitions. [2022-07-21 10:57:43,351 INFO L78 Accepts]: Start accepts. Automaton has 10504 states and 16082 transitions. Word has length 507 [2022-07-21 10:57:43,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:57:43,352 INFO L495 AbstractCegarLoop]: Abstraction has 10504 states and 16082 transitions. [2022-07-21 10:57:43,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 11.941176470588236) internal successors, (203), 9 states have internal predecessors, (203), 5 states have call successors, (74), 10 states have call predecessors, (74), 4 states have return successors, (73), 5 states have call predecessors, (73), 5 states have call successors, (73) [2022-07-21 10:57:43,352 INFO L276 IsEmpty]: Start isEmpty. Operand 10504 states and 16082 transitions. [2022-07-21 10:57:43,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2022-07-21 10:57:43,505 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:57:43,505 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:57:43,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-21 10:57:43,506 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:57:43,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:57:43,507 INFO L85 PathProgramCache]: Analyzing trace with hash 2066393558, now seen corresponding path program 1 times [2022-07-21 10:57:43,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:57:43,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941796419] [2022-07-21 10:57:43,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:57:43,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:57:43,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:43,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:57:43,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:57:43,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:57:43,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:57:43,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:57:43,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:57:43,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:57:43,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:57:43,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:57:43,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:57:43,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:57:43,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:57:43,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:57:43,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:57:43,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:57:43,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:57:43,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:57:43,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:57:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:57:43,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:57:43,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:57:43,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:57:43,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:57:43,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 10:57:43,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-21 10:57:43,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 10:57:43,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 10:57:43,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-21 10:57:43,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 10:57:43,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-21 10:57:43,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 10:57:43,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-21 10:57:43,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-21 10:57:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-21 10:57:43,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-21 10:57:43,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 10:57:43,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-21 10:57:43,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-21 10:57:43,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-21 10:57:43,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-21 10:57:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-07-21 10:57:43,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-21 10:57:43,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-07-21 10:57:43,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-07-21 10:57:43,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-21 10:57:43,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-07-21 10:57:43,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-07-21 10:57:43,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-21 10:57:43,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-07-21 10:57:43,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-07-21 10:57:43,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:43,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:43,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:44,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:44,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:44,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:57:44,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:44,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:57:44,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:44,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 10:57:44,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:44,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:44,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:44,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 10:57:44,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:44,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 10:57:44,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:44,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 10:57:44,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:44,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:44,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:44,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:44,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:44,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 10:57:44,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:44,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 10:57:44,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:44,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 10:57:44,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:44,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:44,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:44,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:44,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:44,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:57:44,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:44,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-21 10:57:44,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:44,134 INFO L134 CoverageAnalysis]: Checked inductivity of 4554 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4551 trivial. 0 not checked. [2022-07-21 10:57:44,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:57:44,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941796419] [2022-07-21 10:57:44,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941796419] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:57:44,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508536162] [2022-07-21 10:57:44,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:57:44,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:57:44,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:57:44,136 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 10:57:44,137 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 10:57:45,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:45,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 4465 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-21 10:57:45,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:57:45,121 INFO L134 CoverageAnalysis]: Checked inductivity of 4554 backedges. 1284 proven. 0 refuted. 0 times theorem prover too weak. 3270 trivial. 0 not checked. [2022-07-21 10:57:45,121 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:57:45,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [508536162] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:57:45,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:57:45,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 12 [2022-07-21 10:57:45,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40514079] [2022-07-21 10:57:45,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:57:45,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 10:57:45,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:57:45,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 10:57:45,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-07-21 10:57:45,123 INFO L87 Difference]: Start difference. First operand 10504 states and 16082 transitions. Second operand has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 2 states have call successors, (70), 2 states have call predecessors, (70), 3 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2022-07-21 10:57:45,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:57:45,643 INFO L93 Difference]: Finished difference Result 20935 states and 32141 transitions. [2022-07-21 10:57:45,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 10:57:45,644 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 2 states have call successors, (70), 2 states have call predecessors, (70), 3 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) Word has length 485 [2022-07-21 10:57:45,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:57:45,694 INFO L225 Difference]: With dead ends: 20935 [2022-07-21 10:57:45,694 INFO L226 Difference]: Without dead ends: 10510 [2022-07-21 10:57:45,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 626 GetRequests, 614 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-07-21 10:57:45,732 INFO L413 NwaCegarLoop]: 1973 mSDtfsCounter, 2 mSDsluCounter, 3940 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5913 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:57:45,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 5913 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 10:57:45,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10510 states. [2022-07-21 10:57:46,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10510 to 10510. [2022-07-21 10:57:46,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10510 states, 7868 states have (on average 1.3268937468225726) internal successors, (10440), 8049 states have internal predecessors, (10440), 1738 states have call successors, (1738), 444 states have call predecessors, (1738), 903 states have return successors, (3910), 2097 states have call predecessors, (3910), 1737 states have call successors, (3910) [2022-07-21 10:57:46,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10510 states to 10510 states and 16088 transitions. [2022-07-21 10:57:46,418 INFO L78 Accepts]: Start accepts. Automaton has 10510 states and 16088 transitions. Word has length 485 [2022-07-21 10:57:46,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:57:46,419 INFO L495 AbstractCegarLoop]: Abstraction has 10510 states and 16088 transitions. [2022-07-21 10:57:46,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 2 states have call successors, (70), 2 states have call predecessors, (70), 3 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2022-07-21 10:57:46,419 INFO L276 IsEmpty]: Start isEmpty. Operand 10510 states and 16088 transitions. [2022-07-21 10:57:46,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2022-07-21 10:57:46,440 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:57:46,441 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:57:46,465 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-21 10:57:46,651 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,SelfDestructingSolverStorable14 [2022-07-21 10:57:46,652 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:57:46,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:57:46,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1031683543, now seen corresponding path program 1 times [2022-07-21 10:57:46,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:57:46,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256090036] [2022-07-21 10:57:46,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:57:46,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:57:46,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:46,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:46,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:46,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:57:46,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:46,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:57:46,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:46,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:57:46,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:46,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:57:46,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:46,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:57:46,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:46,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:57:46,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:46,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:57:46,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:46,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:57:46,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:46,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:57:46,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:46,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:57:46,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:46,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:57:46,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:46,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:57:46,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:46,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:57:46,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:46,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:57:46,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:46,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:57:46,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:46,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:57:46,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:46,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:57:46,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:46,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:57:46,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:46,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:57:46,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:46,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:57:46,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:46,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:57:46,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:46,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:57:46,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:46,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:57:46,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:46,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 10:57:46,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:46,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-21 10:57:46,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:46,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 10:57:46,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:46,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 10:57:46,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:46,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-21 10:57:46,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:46,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 10:57:46,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:46,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-21 10:57:46,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:46,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 10:57:46,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:46,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-21 10:57:46,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:46,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-21 10:57:46,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:46,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-21 10:57:46,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:46,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-21 10:57:46,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:46,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 10:57:46,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-21 10:57:47,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-21 10:57:47,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-21 10:57:47,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-21 10:57:47,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-21 10:57:47,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-07-21 10:57:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-21 10:57:47,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-07-21 10:57:47,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-07-21 10:57:47,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-07-21 10:57:47,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2022-07-21 10:57:47,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-07-21 10:57:47,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-07-21 10:57:47,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-07-21 10:57:47,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:47,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:47,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:57:47,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:47,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:57:47,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 10:57:47,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:47,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:47,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:57:47,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:57:47,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 10:57:47,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 10:57:47,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:47,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 10:57:47,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 10:57:47,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 10:57:47,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 10:57:47,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:47,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:47,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:47,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 10:57:47,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:57:47,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 10:57:47,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:57:47,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:47,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:57:47,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-07-21 10:57:47,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:47,384 INFO L134 CoverageAnalysis]: Checked inductivity of 4580 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4573 trivial. 0 not checked. [2022-07-21 10:57:47,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:57:47,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256090036] [2022-07-21 10:57:47,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256090036] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:57:47,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [664743287] [2022-07-21 10:57:47,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:57:47,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:57:47,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:57:47,385 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 10:57:47,401 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 10:57:48,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:48,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 4778 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-21 10:57:48,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:57:48,466 INFO L134 CoverageAnalysis]: Checked inductivity of 4580 backedges. 1287 proven. 1 refuted. 0 times theorem prover too weak. 3292 trivial. 0 not checked. [2022-07-21 10:57:48,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 10:57:48,980 INFO L134 CoverageAnalysis]: Checked inductivity of 4580 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4573 trivial. 0 not checked. [2022-07-21 10:57:48,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [664743287] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 10:57:48,981 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 10:57:48,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 19 [2022-07-21 10:57:48,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985170276] [2022-07-21 10:57:48,982 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 10:57:48,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-21 10:57:48,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:57:48,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-21 10:57:48,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2022-07-21 10:57:48,984 INFO L87 Difference]: Start difference. First operand 10510 states and 16088 transitions. Second operand has 19 states, 19 states have (on average 19.210526315789473) internal successors, (365), 10 states have internal predecessors, (365), 2 states have call successors, (179), 11 states have call predecessors, (179), 5 states have return successors, (113), 2 states have call predecessors, (113), 2 states have call successors, (113) [2022-07-21 10:58:03,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:58:03,073 INFO L93 Difference]: Finished difference Result 24662 states and 38632 transitions. [2022-07-21 10:58:03,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-21 10:58:03,074 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 19.210526315789473) internal successors, (365), 10 states have internal predecessors, (365), 2 states have call successors, (179), 11 states have call predecessors, (179), 5 states have return successors, (113), 2 states have call predecessors, (113), 2 states have call successors, (113) Word has length 537 [2022-07-21 10:58:03,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:58:03,173 INFO L225 Difference]: With dead ends: 24662 [2022-07-21 10:58:03,180 INFO L226 Difference]: Without dead ends: 14231 [2022-07-21 10:58:03,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1245 GetRequests, 1216 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=223, Invalid=647, Unknown=0, NotChecked=0, Total=870 [2022-07-21 10:58:03,234 INFO L413 NwaCegarLoop]: 1903 mSDtfsCounter, 3195 mSDsluCounter, 10419 mSDsCounter, 0 mSdLazyCounter, 10025 mSolverCounterSat, 1577 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3391 SdHoareTripleChecker+Valid, 12322 SdHoareTripleChecker+Invalid, 11602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1577 IncrementalHoareTripleChecker+Valid, 10025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-07-21 10:58:03,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3391 Valid, 12322 Invalid, 11602 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1577 Valid, 10025 Invalid, 0 Unknown, 0 Unchecked, 12.7s Time] [2022-07-21 10:58:03,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14231 states. [2022-07-21 10:58:03,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14231 to 11659. [2022-07-21 10:58:03,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11659 states, 8738 states have (on average 1.3221560997940032) internal successors, (11553), 8903 states have internal predecessors, (11553), 1916 states have call successors, (1916), 445 states have call predecessors, (1916), 1004 states have return successors, (4825), 2391 states have call predecessors, (4825), 1915 states have call successors, (4825) [2022-07-21 10:58:03,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11659 states to 11659 states and 18294 transitions. [2022-07-21 10:58:03,889 INFO L78 Accepts]: Start accepts. Automaton has 11659 states and 18294 transitions. Word has length 537 [2022-07-21 10:58:03,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:58:03,890 INFO L495 AbstractCegarLoop]: Abstraction has 11659 states and 18294 transitions. [2022-07-21 10:58:03,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 19.210526315789473) internal successors, (365), 10 states have internal predecessors, (365), 2 states have call successors, (179), 11 states have call predecessors, (179), 5 states have return successors, (113), 2 states have call predecessors, (113), 2 states have call successors, (113) [2022-07-21 10:58:03,890 INFO L276 IsEmpty]: Start isEmpty. Operand 11659 states and 18294 transitions. [2022-07-21 10:58:03,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 500 [2022-07-21 10:58:03,916 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:58:03,916 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 8, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:58:03,942 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 10:58:04,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:58:04,124 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:58:04,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:58:04,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1783961789, now seen corresponding path program 1 times [2022-07-21 10:58:04,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:58:04,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893841291] [2022-07-21 10:58:04,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:58:04,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:58:04,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:58:04,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:58:04,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:58:04,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:58:04,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:58:04,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:58:04,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:58:04,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:58:04,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:58:04,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:58:04,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:58:04,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:58:04,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:58:04,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:58:04,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:58:04,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:58:04,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:58:04,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:58:04,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:58:04,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:58:04,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:58:04,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:58:04,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:58:04,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:58:04,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 10:58:04,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-21 10:58:04,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 10:58:04,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 10:58:04,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-21 10:58:04,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 10:58:04,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-21 10:58:04,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 10:58:04,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-21 10:58:04,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-21 10:58:04,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-21 10:58:04,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-21 10:58:04,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 10:58:04,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-21 10:58:04,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-21 10:58:04,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-21 10:58:04,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-21 10:58:04,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-07-21 10:58:04,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-21 10:58:04,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-07-21 10:58:04,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-07-21 10:58:04,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-07-21 10:58:04,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2022-07-21 10:58:04,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-07-21 10:58:04,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-07-21 10:58:04,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2022-07-21 10:58:04,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-07-21 10:58:04,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:58:04,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:58:04,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:58:04,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:58:04,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 10:58:04,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:58:04,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 10:58:04,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 10:58:04,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 10:58:04,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:58:04,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:58:04,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:58:04,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 10:58:04,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:04,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:58:04,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:05,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 10:58:05,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:05,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:58:05,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:05,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:58:05,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:05,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:58:05,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:05,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 10:58:05,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:05,212 INFO L134 CoverageAnalysis]: Checked inductivity of 4604 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4586 trivial. 0 not checked. [2022-07-21 10:58:05,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:58:05,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893841291] [2022-07-21 10:58:05,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893841291] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:58:05,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:58:05,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-21 10:58:05,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639474740] [2022-07-21 10:58:05,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:58:05,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-21 10:58:05,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:58:05,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-21 10:58:05,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-07-21 10:58:05,215 INFO L87 Difference]: Start difference. First operand 11659 states and 18294 transitions. Second operand has 19 states, 19 states have (on average 10.263157894736842) internal successors, (195), 10 states have internal predecessors, (195), 4 states have call successors, (71), 9 states have call predecessors, (71), 4 states have return successors, (70), 6 states have call predecessors, (70), 4 states have call successors, (70) [2022-07-21 10:58:39,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:58:39,094 INFO L93 Difference]: Finished difference Result 26994 states and 44863 transitions. [2022-07-21 10:58:39,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-07-21 10:58:39,097 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 10.263157894736842) internal successors, (195), 10 states have internal predecessors, (195), 4 states have call successors, (71), 9 states have call predecessors, (71), 4 states have return successors, (70), 6 states have call predecessors, (70), 4 states have call successors, (70) Word has length 499 [2022-07-21 10:58:39,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:58:39,188 INFO L225 Difference]: With dead ends: 26994 [2022-07-21 10:58:39,188 INFO L226 Difference]: Without dead ends: 15437 [2022-07-21 10:58:39,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1418 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=666, Invalid=4304, Unknown=0, NotChecked=0, Total=4970 [2022-07-21 10:58:39,255 INFO L413 NwaCegarLoop]: 3656 mSDtfsCounter, 4551 mSDsluCounter, 28465 mSDsCounter, 0 mSdLazyCounter, 30205 mSolverCounterSat, 2070 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4810 SdHoareTripleChecker+Valid, 32121 SdHoareTripleChecker+Invalid, 32275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2070 IncrementalHoareTripleChecker+Valid, 30205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.5s IncrementalHoareTripleChecker+Time [2022-07-21 10:58:39,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4810 Valid, 32121 Invalid, 32275 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2070 Valid, 30205 Invalid, 0 Unknown, 0 Unchecked, 30.5s Time] [2022-07-21 10:58:39,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15437 states. [2022-07-21 10:58:40,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15437 to 11725. [2022-07-21 10:58:40,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11725 states, 8786 states have (on average 1.3200546323696791) internal successors, (11598), 8951 states have internal predecessors, (11598), 1928 states have call successors, (1928), 445 states have call predecessors, (1928), 1010 states have return successors, (4852), 2409 states have call predecessors, (4852), 1927 states have call successors, (4852) [2022-07-21 10:58:40,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11725 states to 11725 states and 18378 transitions. [2022-07-21 10:58:40,254 INFO L78 Accepts]: Start accepts. Automaton has 11725 states and 18378 transitions. Word has length 499 [2022-07-21 10:58:40,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:58:40,255 INFO L495 AbstractCegarLoop]: Abstraction has 11725 states and 18378 transitions. [2022-07-21 10:58:40,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.263157894736842) internal successors, (195), 10 states have internal predecessors, (195), 4 states have call successors, (71), 9 states have call predecessors, (71), 4 states have return successors, (70), 6 states have call predecessors, (70), 4 states have call successors, (70) [2022-07-21 10:58:40,255 INFO L276 IsEmpty]: Start isEmpty. Operand 11725 states and 18378 transitions. [2022-07-21 10:58:40,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2022-07-21 10:58:40,285 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:58:40,286 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 8, 6, 6, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:58:40,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-21 10:58:40,286 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:58:40,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:58:40,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1101373891, now seen corresponding path program 1 times [2022-07-21 10:58:40,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:58:40,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50513390] [2022-07-21 10:58:40,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:58:40,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:58:40,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:58:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:58:40,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:58:40,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:58:40,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:58:40,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:58:40,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:58:40,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:58:40,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:58:40,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:58:40,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:58:40,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:58:40,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:58:40,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:58:40,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:58:40,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:58:40,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:58:40,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:58:40,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:58:40,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:58:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:58:40,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:58:40,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:58:40,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:58:40,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 10:58:40,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-21 10:58:40,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 10:58:40,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 10:58:40,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-21 10:58:40,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 10:58:40,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-21 10:58:40,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 10:58:40,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-21 10:58:40,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-21 10:58:40,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-21 10:58:40,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-21 10:58:40,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 10:58:40,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-21 10:58:40,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-21 10:58:40,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-21 10:58:40,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-21 10:58:40,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-07-21 10:58:40,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-21 10:58:40,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-07-21 10:58:40,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-07-21 10:58:40,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-07-21 10:58:40,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2022-07-21 10:58:40,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-07-21 10:58:40,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-07-21 10:58:40,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2022-07-21 10:58:40,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:40,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-07-21 10:58:41,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:41,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:58:41,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:41,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:58:41,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:41,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:58:41,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:41,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:58:41,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:41,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-21 10:58:41,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:41,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:58:41,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:41,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:58:41,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:41,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:58:41,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:41,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 10:58:41,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:41,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:58:41,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:41,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:58:41,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:41,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 10:58:41,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:41,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 10:58:41,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:41,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:58:41,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:41,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:58:41,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:41,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 10:58:41,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:41,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 10:58:41,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:41,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 10:58:41,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:41,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:58:41,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:41,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:58:41,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:41,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:58:41,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:41,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:58:41,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:41,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:58:41,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:41,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 10:58:41,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:41,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-21 10:58:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:41,304 INFO L134 CoverageAnalysis]: Checked inductivity of 4648 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 4636 trivial. 0 not checked. [2022-07-21 10:58:41,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:58:41,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50513390] [2022-07-21 10:58:41,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50513390] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:58:41,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144831057] [2022-07-21 10:58:41,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:58:41,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:58:41,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:58:41,320 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 10:58:41,321 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 10:58:42,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:42,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 4950 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-21 10:58:42,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:58:42,419 INFO L134 CoverageAnalysis]: Checked inductivity of 4648 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 4588 trivial. 0 not checked. [2022-07-21 10:58:42,419 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:58:42,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144831057] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:58:42,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:58:42,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [18] total 20 [2022-07-21 10:58:42,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744524469] [2022-07-21 10:58:42,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:58:42,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 10:58:42,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:58:42,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 10:58:42,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2022-07-21 10:58:42,421 INFO L87 Difference]: Start difference. First operand 11725 states and 18378 transitions. Second operand has 8 states, 8 states have (on average 30.125) internal successors, (241), 8 states have internal predecessors, (241), 4 states have call successors, (77), 2 states have call predecessors, (77), 3 states have return successors, (76), 3 states have call predecessors, (76), 4 states have call successors, (76) [2022-07-21 10:58:43,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:58:43,433 INFO L93 Difference]: Finished difference Result 25172 states and 41766 transitions. [2022-07-21 10:58:43,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 10:58:43,434 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 30.125) internal successors, (241), 8 states have internal predecessors, (241), 4 states have call successors, (77), 2 states have call predecessors, (77), 3 states have return successors, (76), 3 states have call predecessors, (76), 4 states have call successors, (76) Word has length 558 [2022-07-21 10:58:43,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:58:43,509 INFO L225 Difference]: With dead ends: 25172 [2022-07-21 10:58:43,509 INFO L226 Difference]: Without dead ends: 13549 [2022-07-21 10:58:43,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 726 GetRequests, 704 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=471, Unknown=0, NotChecked=0, Total=552 [2022-07-21 10:58:43,560 INFO L413 NwaCegarLoop]: 2051 mSDtfsCounter, 236 mSDsluCounter, 10150 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 12201 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 10:58:43,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 12201 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 10:58:43,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13549 states. [2022-07-21 10:58:44,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13549 to 13333. [2022-07-21 10:58:44,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13333 states, 10196 states have (on average 1.3393487642212631) internal successors, (13656), 10373 states have internal predecessors, (13656), 2114 states have call successors, (2114), 445 states have call predecessors, (2114), 1022 states have return successors, (5362), 2595 states have call predecessors, (5362), 2113 states have call successors, (5362) [2022-07-21 10:58:44,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13333 states to 13333 states and 21132 transitions. [2022-07-21 10:58:44,641 INFO L78 Accepts]: Start accepts. Automaton has 13333 states and 21132 transitions. Word has length 558 [2022-07-21 10:58:44,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:58:44,642 INFO L495 AbstractCegarLoop]: Abstraction has 13333 states and 21132 transitions. [2022-07-21 10:58:44,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 30.125) internal successors, (241), 8 states have internal predecessors, (241), 4 states have call successors, (77), 2 states have call predecessors, (77), 3 states have return successors, (76), 3 states have call predecessors, (76), 4 states have call successors, (76) [2022-07-21 10:58:44,642 INFO L276 IsEmpty]: Start isEmpty. Operand 13333 states and 21132 transitions. [2022-07-21 10:58:44,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2022-07-21 10:58:44,674 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:58:44,675 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 8, 7, 7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:58:44,710 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 10:58:44,891 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 10:58:44,892 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:58:44,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:58:44,892 INFO L85 PathProgramCache]: Analyzing trace with hash -25090429, now seen corresponding path program 1 times [2022-07-21 10:58:44,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:58:44,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742289565] [2022-07-21 10:58:44,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:58:44,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:58:44,983 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 10:58:44,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1422507685] [2022-07-21 10:58:44,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:58:44,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:58:44,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:58:45,012 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 10:58:45,013 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 10:58:45,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:45,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 5074 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 10:58:45,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:58:45,993 INFO L134 CoverageAnalysis]: Checked inductivity of 4684 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 4626 trivial. 0 not checked. [2022-07-21 10:58:45,993 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:58:45,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:58:45,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742289565] [2022-07-21 10:58:45,994 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 10:58:45,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422507685] [2022-07-21 10:58:45,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422507685] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:58:45,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:58:45,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 10:58:45,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949157566] [2022-07-21 10:58:45,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:58:45,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 10:58:45,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:58:45,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 10:58:45,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 10:58:45,997 INFO L87 Difference]: Start difference. First operand 13333 states and 21132 transitions. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 3 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) [2022-07-21 10:58:46,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:58:46,929 INFO L93 Difference]: Finished difference Result 26999 states and 42922 transitions. [2022-07-21 10:58:46,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 10:58:46,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 3 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) Word has length 568 [2022-07-21 10:58:46,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:58:46,998 INFO L225 Difference]: With dead ends: 26999 [2022-07-21 10:58:46,999 INFO L226 Difference]: Without dead ends: 13768 [2022-07-21 10:58:47,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 567 GetRequests, 566 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 10:58:47,046 INFO L413 NwaCegarLoop]: 1985 mSDtfsCounter, 18 mSDsluCounter, 1971 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 3956 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 10:58:47,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 3956 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 10:58:47,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13768 states. [2022-07-21 10:58:47,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13768 to 13693. [2022-07-21 10:58:47,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13693 states, 10496 states have (on average 1.3410823170731707) internal successors, (14076), 10688 states have internal predecessors, (14076), 2174 states have call successors, (2174), 445 states have call predecessors, (2174), 1022 states have return successors, (5437), 2655 states have call predecessors, (5437), 2173 states have call successors, (5437) [2022-07-21 10:58:47,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13693 states to 13693 states and 21687 transitions. [2022-07-21 10:58:47,923 INFO L78 Accepts]: Start accepts. Automaton has 13693 states and 21687 transitions. Word has length 568 [2022-07-21 10:58:47,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:58:47,923 INFO L495 AbstractCegarLoop]: Abstraction has 13693 states and 21687 transitions. [2022-07-21 10:58:47,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 3 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) [2022-07-21 10:58:47,924 INFO L276 IsEmpty]: Start isEmpty. Operand 13693 states and 21687 transitions. [2022-07-21 10:58:47,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2022-07-21 10:58:47,955 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:58:47,956 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 8, 6, 6, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:58:47,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-21 10:58:48,159 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 10:58:48,159 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:58:48,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:58:48,160 INFO L85 PathProgramCache]: Analyzing trace with hash -282810611, now seen corresponding path program 1 times [2022-07-21 10:58:48,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:58:48,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093945716] [2022-07-21 10:58:48,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:58:48,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:58:48,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:58:48,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:58:48,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:58:48,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:58:48,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:58:48,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:58:48,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:58:48,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:58:48,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:58:48,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:58:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:58:48,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:58:48,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:58:48,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:58:48,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:58:48,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:58:48,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:58:48,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:58:48,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:58:48,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:58:48,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:58:48,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:58:48,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:58:48,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:58:48,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 10:58:48,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-21 10:58:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 10:58:48,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 10:58:48,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-21 10:58:48,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 10:58:48,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-21 10:58:48,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 10:58:48,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-21 10:58:48,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-21 10:58:48,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-21 10:58:48,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-21 10:58:48,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 10:58:48,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-21 10:58:48,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-21 10:58:48,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-21 10:58:48,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-21 10:58:48,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-07-21 10:58:48,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-21 10:58:48,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-07-21 10:58:48,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-07-21 10:58:48,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-07-21 10:58:48,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2022-07-21 10:58:48,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-07-21 10:58:48,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-07-21 10:58:48,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2022-07-21 10:58:48,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-07-21 10:58:48,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:58:48,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:58:48,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:58:48,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:58:48,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-21 10:58:48,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:58:48,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:58:48,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:58:48,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 10:58:48,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:58:48,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:58:48,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 10:58:48,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 10:58:48,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:58:48,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:58:48,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 10:58:48,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 10:58:48,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 10:58:48,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:58:48,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:58:48,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:58:48,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:58:48,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:58:48,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 10:58:48,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-21 10:58:48,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:48,928 INFO L134 CoverageAnalysis]: Checked inductivity of 4648 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 4634 trivial. 0 not checked. [2022-07-21 10:58:48,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:58:48,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093945716] [2022-07-21 10:58:48,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093945716] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:58:48,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923106888] [2022-07-21 10:58:48,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:58:48,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:58:48,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:58:48,944 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 10:58:48,945 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 10:58:49,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:49,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 4951 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-21 10:58:49,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:58:50,051 INFO L134 CoverageAnalysis]: Checked inductivity of 4648 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 4588 trivial. 0 not checked. [2022-07-21 10:58:50,052 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 10:58:50,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1923106888] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:58:50,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 10:58:50,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17] total 19 [2022-07-21 10:58:50,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264442922] [2022-07-21 10:58:50,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:58:50,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 10:58:50,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:58:50,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 10:58:50,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-07-21 10:58:50,054 INFO L87 Difference]: Start difference. First operand 13693 states and 21687 transitions. Second operand has 8 states, 8 states have (on average 30.125) internal successors, (241), 8 states have internal predecessors, (241), 4 states have call successors, (77), 2 states have call predecessors, (77), 3 states have return successors, (76), 3 states have call predecessors, (76), 4 states have call successors, (76) [2022-07-21 10:58:51,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:58:51,003 INFO L93 Difference]: Finished difference Result 27428 states and 45162 transitions. [2022-07-21 10:58:51,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 10:58:51,004 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 30.125) internal successors, (241), 8 states have internal predecessors, (241), 4 states have call successors, (77), 2 states have call predecessors, (77), 3 states have return successors, (76), 3 states have call predecessors, (76), 4 states have call successors, (76) Word has length 558 [2022-07-21 10:58:51,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:58:51,162 INFO L225 Difference]: With dead ends: 27428 [2022-07-21 10:58:51,163 INFO L226 Difference]: Without dead ends: 13621 [2022-07-21 10:58:51,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 724 GetRequests, 703 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=428, Unknown=0, NotChecked=0, Total=506 [2022-07-21 10:58:51,201 INFO L413 NwaCegarLoop]: 1985 mSDtfsCounter, 258 mSDsluCounter, 9694 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 11679 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 10:58:51,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 11679 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 10:58:51,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13621 states. [2022-07-21 10:58:51,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13621 to 12157. [2022-07-21 10:58:51,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12157 states, 9158 states have (on average 1.3214675693382836) internal successors, (12102), 9338 states have internal predecessors, (12102), 1988 states have call successors, (1988), 445 states have call predecessors, (1988), 1010 states have return successors, (4927), 2469 states have call predecessors, (4927), 1987 states have call successors, (4927) [2022-07-21 10:58:51,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12157 states to 12157 states and 19017 transitions. [2022-07-21 10:58:51,942 INFO L78 Accepts]: Start accepts. Automaton has 12157 states and 19017 transitions. Word has length 558 [2022-07-21 10:58:51,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:58:51,942 INFO L495 AbstractCegarLoop]: Abstraction has 12157 states and 19017 transitions. [2022-07-21 10:58:51,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 30.125) internal successors, (241), 8 states have internal predecessors, (241), 4 states have call successors, (77), 2 states have call predecessors, (77), 3 states have return successors, (76), 3 states have call predecessors, (76), 4 states have call successors, (76) [2022-07-21 10:58:51,943 INFO L276 IsEmpty]: Start isEmpty. Operand 12157 states and 19017 transitions. [2022-07-21 10:58:51,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 562 [2022-07-21 10:58:51,965 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:58:51,965 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 8, 6, 6, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:58:51,994 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 10:58:52,181 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 10:58:52,184 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:58:52,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:58:52,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1931597420, now seen corresponding path program 1 times [2022-07-21 10:58:52,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:58:52,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282398657] [2022-07-21 10:58:52,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:58:52,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:58:52,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:58:52,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:58:52,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:58:52,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:58:52,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:58:52,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:58:52,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:58:52,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:58:52,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:58:52,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 10:58:52,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 10:58:52,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:58:52,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 10:58:52,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 10:58:52,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:58:52,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 10:58:52,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 10:58:52,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:58:52,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 10:58:52,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 10:58:52,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 10:58:52,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 10:58:52,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 10:58:52,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:58:52,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 10:58:52,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-21 10:58:52,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 10:58:52,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 10:58:52,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-21 10:58:52,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 10:58:52,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-21 10:58:52,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 10:58:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-21 10:58:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-21 10:58:52,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-21 10:58:52,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-21 10:58:52,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 10:58:52,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-21 10:58:52,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:52,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-21 10:58:52,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:53,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-21 10:58:53,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:53,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-21 10:58:53,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:53,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-07-21 10:58:53,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:53,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-21 10:58:53,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:53,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-07-21 10:58:53,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:53,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-07-21 10:58:53,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:53,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-07-21 10:58:53,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:53,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2022-07-21 10:58:53,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:53,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-07-21 10:58:53,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:53,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-07-21 10:58:53,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:53,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2022-07-21 10:58:53,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:53,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-07-21 10:58:53,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:53,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:58:53,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:53,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:58:53,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:53,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:58:53,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:53,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:58:53,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:53,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-21 10:58:53,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:53,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:58:53,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:53,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:58:53,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:53,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:58:53,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:53,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 10:58:53,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:53,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 10:58:53,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:53,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 10:58:53,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:53,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:58:53,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:53,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 10:58:53,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:53,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:58:53,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:53,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:58:53,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:53,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 10:58:53,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:53,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 10:58:53,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:53,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 10:58:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:53,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:58:53,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:53,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:58:53,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:53,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:58:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:53,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 10:58:53,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:53,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:58:53,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:53,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 10:58:54,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:54,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-21 10:58:54,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:54,144 INFO L134 CoverageAnalysis]: Checked inductivity of 4648 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 4626 trivial. 0 not checked. [2022-07-21 10:58:54,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:58:54,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282398657] [2022-07-21 10:58:54,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282398657] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 10:58:54,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125212346] [2022-07-21 10:58:54,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:58:54,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 10:58:54,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:58:54,160 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 10:58:54,191 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 10:58:55,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:55,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 4952 conjuncts, 62 conjunts are in the unsatisfiable core [2022-07-21 10:58:55,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 10:58:55,924 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 14 treesize of output 10 [2022-07-21 10:58:55,966 INFO L356 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-07-21 10:58:55,966 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 21 treesize of output 20 [2022-07-21 10:58:56,005 INFO L356 Elim1Store]: treesize reduction 23, result has 23.3 percent of original size [2022-07-21 10:58:56,006 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 22 treesize of output 21 [2022-07-21 10:58:56,042 INFO L356 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-07-21 10:58:56,043 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 21 treesize of output 20 [2022-07-21 10:58:56,596 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-07-21 10:58:56,936 INFO L134 CoverageAnalysis]: Checked inductivity of 4648 backedges. 1319 proven. 12 refuted. 0 times theorem prover too weak. 3317 trivial. 0 not checked. [2022-07-21 10:58:56,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 10:58:59,290 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 33 treesize of output 31 [2022-07-21 10:58:59,309 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 2752 treesize of output 2736 [2022-07-21 10:58:59,496 INFO L134 CoverageAnalysis]: Checked inductivity of 4648 backedges. 1312 proven. 19 refuted. 0 times theorem prover too weak. 3317 trivial. 0 not checked. [2022-07-21 10:58:59,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125212346] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 10:58:59,496 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 10:58:59,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 18, 19] total 56 [2022-07-21 10:58:59,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314543969] [2022-07-21 10:58:59,497 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 10:58:59,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-07-21 10:58:59,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:58:59,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-07-21 10:58:59,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=2857, Unknown=0, NotChecked=0, Total=3080 [2022-07-21 10:58:59,500 INFO L87 Difference]: Start difference. First operand 12157 states and 19017 transitions. Second operand has 56 states, 53 states have (on average 11.09433962264151) internal successors, (588), 46 states have internal predecessors, (588), 17 states have call successors, (220), 13 states have call predecessors, (220), 12 states have return successors, (170), 19 states have call predecessors, (170), 16 states have call successors, (170)