./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7f108eec0e6f75d7c7724c96156fb3bec5ecbcd0f2a8def1b3ebffa34d9deb6c --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 00:00:03,066 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 00:00:03,068 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 00:00:03,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 00:00:03,114 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 00:00:03,115 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 00:00:03,117 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 00:00:03,118 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 00:00:03,120 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 00:00:03,123 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 00:00:03,124 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 00:00:03,125 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 00:00:03,126 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 00:00:03,127 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 00:00:03,128 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 00:00:03,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 00:00:03,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 00:00:03,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 00:00:03,133 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 00:00:03,138 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 00:00:03,140 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 00:00:03,141 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 00:00:03,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 00:00:03,142 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 00:00:03,143 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 00:00:03,148 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 00:00:03,148 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 00:00:03,149 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 00:00:03,149 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 00:00:03,150 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 00:00:03,151 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 00:00:03,151 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 00:00:03,152 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 00:00:03,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 00:00:03,154 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 00:00:03,155 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 00:00:03,155 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 00:00:03,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 00:00:03,155 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 00:00:03,156 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 00:00:03,156 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 00:00:03,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 00:00:03,159 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 00:00:03,181 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 00:00:03,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 00:00:03,182 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 00:00:03,182 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 00:00:03,183 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 00:00:03,183 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 00:00:03,183 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 00:00:03,183 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 00:00:03,184 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 00:00:03,184 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 00:00:03,184 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 00:00:03,184 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 00:00:03,184 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 00:00:03,184 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 00:00:03,185 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 00:00:03,185 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 00:00:03,185 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 00:00:03,185 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 00:00:03,185 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 00:00:03,185 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 00:00:03,186 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 00:00:03,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:00:03,186 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 00:00:03,186 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 00:00:03,186 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 00:00:03,186 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 00:00:03,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 00:00:03,187 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 00:00:03,187 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 00:00:03,187 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 00:00:03,187 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f108eec0e6f75d7c7724c96156fb3bec5ecbcd0f2a8def1b3ebffa34d9deb6c [2022-07-14 00:00:03,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 00:00:03,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 00:00:03,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 00:00:03,408 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 00:00:03,409 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 00:00:03,410 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.cil.out.i [2022-07-14 00:00:03,448 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9ddd7916/5561afff1a88403ca7a9d36def02f1ec/FLAG37d661e79 [2022-07-14 00:00:04,083 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 00:00:04,083 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.cil.out.i [2022-07-14 00:00:04,116 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9ddd7916/5561afff1a88403ca7a9d36def02f1ec/FLAG37d661e79 [2022-07-14 00:00:04,531 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9ddd7916/5561afff1a88403ca7a9d36def02f1ec [2022-07-14 00:00:04,533 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 00:00:04,535 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 00:00:04,538 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 00:00:04,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 00:00:04,540 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 00:00:04,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:00:04" (1/1) ... [2022-07-14 00:00:04,542 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63f114bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:00:04, skipping insertion in model container [2022-07-14 00:00:04,542 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:00:04" (1/1) ... [2022-07-14 00:00:04,546 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 00:00:04,640 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:00:05,364 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.cil.out.i[114617,114630] [2022-07-14 00:00:05,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:00:05,728 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 00:00:05,837 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.cil.out.i[114617,114630] [2022-07-14 00:00:05,958 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:00:06,050 INFO L208 MainTranslator]: Completed translation [2022-07-14 00:00:06,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:00:06 WrapperNode [2022-07-14 00:00:06,052 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 00:00:06,053 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 00:00:06,053 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 00:00:06,053 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 00:00:06,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:00:06" (1/1) ... [2022-07-14 00:00:06,117 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:00:06" (1/1) ... [2022-07-14 00:00:06,268 INFO L137 Inliner]: procedures = 222, calls = 1486, calls flagged for inlining = 101, calls inlined = 96, statements flattened = 3995 [2022-07-14 00:00:06,268 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 00:00:06,270 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 00:00:06,270 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 00:00:06,270 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 00:00:06,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:00:06" (1/1) ... [2022-07-14 00:00:06,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:00:06" (1/1) ... [2022-07-14 00:00:06,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:00:06" (1/1) ... [2022-07-14 00:00:06,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:00:06" (1/1) ... [2022-07-14 00:00:06,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:00:06" (1/1) ... [2022-07-14 00:00:06,401 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:00:06" (1/1) ... [2022-07-14 00:00:06,438 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:00:06" (1/1) ... [2022-07-14 00:00:06,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 00:00:06,466 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 00:00:06,466 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 00:00:06,466 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 00:00:06,467 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:00:06" (1/1) ... [2022-07-14 00:00:06,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:00:06,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:00:06,515 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) [2022-07-14 00:00:06,571 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 [2022-07-14 00:00:06,589 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-14 00:00:06,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-14 00:00:06,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_18 [2022-07-14 00:00:06,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_18 [2022-07-14 00:00:06,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 00:00:06,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 00:00:06,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 00:00:06,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 00:00:06,591 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2022-07-14 00:00:06,591 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2022-07-14 00:00:06,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-07-14 00:00:06,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-07-14 00:00:06,591 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_handle_firmware_update [2022-07-14 00:00:06,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_handle_firmware_update [2022-07-14 00:00:06,591 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2022-07-14 00:00:06,592 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2022-07-14 00:00:06,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 00:00:06,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 00:00:06,592 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-07-14 00:00:06,592 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-07-14 00:00:06,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-07-14 00:00:06,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-07-14 00:00:06,592 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-07-14 00:00:06,593 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-07-14 00:00:06,593 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_get_info [2022-07-14 00:00:06,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_get_info [2022-07-14 00:00:06,593 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2022-07-14 00:00:06,593 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2022-07-14 00:00:06,593 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-14 00:00:06,593 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-14 00:00:06,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 00:00:06,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 00:00:06,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 00:00:06,594 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 00:00:06,594 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 00:00:06,594 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 00:00:06,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-07-14 00:00:06,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-07-14 00:00:06,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 00:00:06,595 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2022-07-14 00:00:06,595 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2022-07-14 00:00:06,595 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-14 00:00:06,595 INFO L130 BoogieDeclarations]: Found specification of procedure ihex_next_binrec [2022-07-14 00:00:06,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ihex_next_binrec [2022-07-14 00:00:06,596 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-07-14 00:00:06,596 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-07-14 00:00:06,596 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_buffers_free [2022-07-14 00:00:06,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_buffers_free [2022-07-14 00:00:06,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 00:00:06,597 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2022-07-14 00:00:06,597 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2022-07-14 00:00:06,597 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-07-14 00:00:06,597 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2022-07-14 00:00:06,597 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2022-07-14 00:00:06,598 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_attribute_show [2022-07-14 00:00:06,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_attribute_show [2022-07-14 00:00:06,598 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2022-07-14 00:00:06,599 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2022-07-14 00:00:06,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 00:00:06,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 00:00:06,600 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-14 00:00:06,600 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-14 00:00:06,600 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-14 00:00:06,600 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-14 00:00:06,600 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-14 00:00:06,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-14 00:00:06,600 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-14 00:00:06,600 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-14 00:00:06,628 INFO L130 BoogieDeclarations]: Found specification of procedure __ims_pcu_execute_command [2022-07-14 00:00:06,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __ims_pcu_execute_command [2022-07-14 00:00:06,628 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-07-14 00:00:06,628 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-07-14 00:00:06,628 INFO L130 BoogieDeclarations]: Found specification of procedure __ims_pcu_execute_bl_command [2022-07-14 00:00:06,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __ims_pcu_execute_bl_command [2022-07-14 00:00:06,629 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2022-07-14 00:00:06,629 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2022-07-14 00:00:06,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-14 00:00:06,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-14 00:00:06,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-14 00:00:06,629 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2022-07-14 00:00:06,629 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2022-07-14 00:00:06,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-14 00:00:06,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_8 [2022-07-14 00:00:06,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_8 [2022-07-14 00:00:06,629 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2022-07-14 00:00:06,629 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2022-07-14 00:00:06,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 00:00:06,629 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-07-14 00:00:06,629 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-07-14 00:00:06,629 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2022-07-14 00:00:06,630 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2022-07-14 00:00:06,630 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_destroy_backlight [2022-07-14 00:00:06,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_destroy_backlight [2022-07-14 00:00:06,630 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_attribute_store [2022-07-14 00:00:06,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_attribute_store [2022-07-14 00:00:06,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-14 00:00:06,630 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-14 00:00:06,630 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-14 00:00:06,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-14 00:00:06,630 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_resume [2022-07-14 00:00:06,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_resume [2022-07-14 00:00:06,630 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-07-14 00:00:06,630 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-07-14 00:00:06,630 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_destroy_buttons [2022-07-14 00:00:06,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_destroy_buttons [2022-07-14 00:00:06,630 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 00:00:06,630 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 00:00:06,630 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_start_io [2022-07-14 00:00:06,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_start_io [2022-07-14 00:00:06,631 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-07-14 00:00:06,631 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-07-14 00:00:06,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 00:00:06,631 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2022-07-14 00:00:06,631 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2022-07-14 00:00:06,631 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2022-07-14 00:00:06,631 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2022-07-14 00:00:06,631 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_send_cmd_chunk [2022-07-14 00:00:06,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_send_cmd_chunk [2022-07-14 00:00:06,631 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoint [2022-07-14 00:00:06,631 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoint [2022-07-14 00:00:06,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 00:00:06,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 00:00:06,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 00:00:06,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_2 [2022-07-14 00:00:06,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_2 [2022-07-14 00:00:06,631 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2022-07-14 00:00:06,631 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2022-07-14 00:00:06,632 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_line_setup [2022-07-14 00:00:06,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_line_setup [2022-07-14 00:00:06,632 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-07-14 00:00:06,632 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-07-14 00:00:06,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 00:00:06,632 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_stop_io [2022-07-14 00:00:06,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_stop_io [2022-07-14 00:00:06,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-14 00:00:06,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-14 00:00:06,632 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_byte_needs_escape [2022-07-14 00:00:06,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_byte_needs_escape [2022-07-14 00:00:06,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 00:00:06,632 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2022-07-14 00:00:06,632 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2022-07-14 00:00:06,632 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 00:00:06,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 00:00:06,632 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2022-07-14 00:00:06,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2022-07-14 00:00:06,632 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2022-07-14 00:00:06,633 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2022-07-14 00:00:06,633 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-07-14 00:00:06,633 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-07-14 00:00:06,633 INFO L130 BoogieDeclarations]: Found specification of procedure ihex_validate_fw [2022-07-14 00:00:06,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ihex_validate_fw [2022-07-14 00:00:06,633 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_irq [2022-07-14 00:00:06,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_irq [2022-07-14 00:00:06,633 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2022-07-14 00:00:06,633 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2022-07-14 00:00:06,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-07-14 00:00:06,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-07-14 00:00:06,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 00:00:06,633 INFO L130 BoogieDeclarations]: Found specification of procedure ims_pcu_disconnect [2022-07-14 00:00:06,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ims_pcu_disconnect [2022-07-14 00:00:06,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 00:00:06,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 00:00:07,150 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 00:00:07,152 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 00:00:07,339 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 00:00:08,587 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-07-14 00:00:10,132 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 00:00:10,167 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 00:00:10,168 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-14 00:00:10,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:00:10 BoogieIcfgContainer [2022-07-14 00:00:10,171 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 00:00:10,173 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 00:00:10,173 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 00:00:10,189 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 00:00:10,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 12:00:04" (1/3) ... [2022-07-14 00:00:10,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25456d75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:00:10, skipping insertion in model container [2022-07-14 00:00:10,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:00:06" (2/3) ... [2022-07-14 00:00:10,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25456d75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:00:10, skipping insertion in model container [2022-07-14 00:00:10,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:00:10" (3/3) ... [2022-07-14 00:00:10,192 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--input--misc--ims-pcu.ko-entry_point.cil.out.i [2022-07-14 00:00:10,202 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 00:00:10,213 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 00:00:10,384 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 00:00:10,391 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@2d85d309, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@66953aad [2022-07-14 00:00:10,391 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 00:00:10,412 INFO L276 IsEmpty]: Start isEmpty. Operand has 1168 states, 813 states have (on average 1.3444034440344403) internal successors, (1093), 846 states have internal predecessors, (1093), 283 states have call successors, (283), 72 states have call predecessors, (283), 70 states have return successors, (268), 267 states have call predecessors, (268), 268 states have call successors, (268) [2022-07-14 00:00:10,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-07-14 00:00:10,449 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:00:10,450 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:00:10,450 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:00:10,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:00:10,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1340860104, now seen corresponding path program 1 times [2022-07-14 00:00:10,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:00:10,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929448290] [2022-07-14 00:00:10,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:00:10,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:00:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:11,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:00:11,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:11,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:00:11,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:11,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:00:11,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:11,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:00:11,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:11,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:00:11,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:11,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:00:11,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:11,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:00:11,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:11,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:00:11,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:11,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:00:11,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:11,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:00:11,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:11,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:00:11,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:11,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 00:00:11,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:11,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 00:00:11,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:11,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 00:00:11,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:11,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:00:11,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:11,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-14 00:00:11,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:11,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 00:00:11,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:11,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 00:00:11,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:11,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-14 00:00:11,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:11,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 00:00:11,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:11,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 00:00:11,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:11,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-14 00:00:11,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:11,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 00:00:11,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:11,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-14 00:00:11,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:11,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-14 00:00:11,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:11,905 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2022-07-14 00:00:11,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:00:11,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929448290] [2022-07-14 00:00:11,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929448290] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:00:11,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:00:11,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:00:11,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366304788] [2022-07-14 00:00:11,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:00:11,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:00:11,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:00:11,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:00:11,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:00:11,989 INFO L87 Difference]: Start difference. First operand has 1168 states, 813 states have (on average 1.3444034440344403) internal successors, (1093), 846 states have internal predecessors, (1093), 283 states have call successors, (283), 72 states have call predecessors, (283), 70 states have return successors, (268), 267 states have call predecessors, (268), 268 states have call successors, (268) Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-07-14 00:00:17,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:00:17,925 INFO L93 Difference]: Finished difference Result 3639 states and 5331 transitions. [2022-07-14 00:00:17,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:00:17,928 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 174 [2022-07-14 00:00:17,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:00:18,010 INFO L225 Difference]: With dead ends: 3639 [2022-07-14 00:00:18,010 INFO L226 Difference]: Without dead ends: 2436 [2022-07-14 00:00:18,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:00:18,043 INFO L413 NwaCegarLoop]: 1764 mSDtfsCounter, 2415 mSDsluCounter, 2731 mSDsCounter, 0 mSdLazyCounter, 1916 mSolverCounterSat, 1434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2586 SdHoareTripleChecker+Valid, 4495 SdHoareTripleChecker+Invalid, 3350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1434 IncrementalHoareTripleChecker+Valid, 1916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-07-14 00:00:18,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2586 Valid, 4495 Invalid, 3350 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1434 Valid, 1916 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-07-14 00:00:18,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2436 states. [2022-07-14 00:00:18,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2436 to 2184. [2022-07-14 00:00:18,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2184 states, 1552 states have (on average 1.3324742268041236) internal successors, (2068), 1580 states have internal predecessors, (2068), 493 states have call successors, (493), 139 states have call predecessors, (493), 138 states have return successors, (488), 486 states have call predecessors, (488), 488 states have call successors, (488) [2022-07-14 00:00:18,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2184 states to 2184 states and 3049 transitions. [2022-07-14 00:00:18,425 INFO L78 Accepts]: Start accepts. Automaton has 2184 states and 3049 transitions. Word has length 174 [2022-07-14 00:00:18,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:00:18,426 INFO L495 AbstractCegarLoop]: Abstraction has 2184 states and 3049 transitions. [2022-07-14 00:00:18,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-07-14 00:00:18,427 INFO L276 IsEmpty]: Start isEmpty. Operand 2184 states and 3049 transitions. [2022-07-14 00:00:18,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-07-14 00:00:18,432 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:00:18,432 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:00:18,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 00:00:18,433 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:00:18,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:00:18,433 INFO L85 PathProgramCache]: Analyzing trace with hash -741605332, now seen corresponding path program 1 times [2022-07-14 00:00:18,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:00:18,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962421146] [2022-07-14 00:00:18,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:00:18,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:00:18,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:18,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:00:18,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:18,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:00:18,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:18,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:00:18,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:18,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:00:18,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:18,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:00:18,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:18,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:00:18,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:18,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:00:18,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:18,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:00:18,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:18,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:00:18,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:18,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:00:18,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:18,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:00:18,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:18,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 00:00:18,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:18,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 00:00:18,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:18,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 00:00:18,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:18,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:00:18,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:18,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-14 00:00:18,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:18,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 00:00:18,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:18,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 00:00:18,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:18,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-14 00:00:18,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:18,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 00:00:18,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:18,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 00:00:18,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:18,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-14 00:00:18,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:18,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 00:00:18,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:18,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-14 00:00:18,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:18,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-14 00:00:18,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:18,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-14 00:00:18,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:18,815 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2022-07-14 00:00:18,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:00:18,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962421146] [2022-07-14 00:00:18,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962421146] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:00:18,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:00:18,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:00:18,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166265053] [2022-07-14 00:00:18,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:00:18,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:00:18,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:00:18,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:00:18,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:00:18,822 INFO L87 Difference]: Start difference. First operand 2184 states and 3049 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-14 00:00:22,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:00:22,590 INFO L93 Difference]: Finished difference Result 6949 states and 10117 transitions. [2022-07-14 00:00:22,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:00:22,591 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 184 [2022-07-14 00:00:22,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:00:22,623 INFO L225 Difference]: With dead ends: 6949 [2022-07-14 00:00:22,624 INFO L226 Difference]: Without dead ends: 4818 [2022-07-14 00:00:22,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:00:22,638 INFO L413 NwaCegarLoop]: 1958 mSDtfsCounter, 2449 mSDsluCounter, 2826 mSDsCounter, 0 mSdLazyCounter, 2029 mSolverCounterSat, 1355 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2616 SdHoareTripleChecker+Valid, 4784 SdHoareTripleChecker+Invalid, 3384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1355 IncrementalHoareTripleChecker+Valid, 2029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-07-14 00:00:22,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2616 Valid, 4784 Invalid, 3384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1355 Valid, 2029 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-07-14 00:00:22,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4818 states. [2022-07-14 00:00:22,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4818 to 4364. [2022-07-14 00:00:22,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4364 states, 3113 states have (on average 1.332155477031802) internal successors, (4147), 3165 states have internal predecessors, (4147), 962 states have call successors, (962), 277 states have call predecessors, (962), 288 states have return successors, (1029), 963 states have call predecessors, (1029), 957 states have call successors, (1029) [2022-07-14 00:00:22,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4364 states to 4364 states and 6138 transitions. [2022-07-14 00:00:22,882 INFO L78 Accepts]: Start accepts. Automaton has 4364 states and 6138 transitions. Word has length 184 [2022-07-14 00:00:22,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:00:22,884 INFO L495 AbstractCegarLoop]: Abstraction has 4364 states and 6138 transitions. [2022-07-14 00:00:22,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-14 00:00:22,888 INFO L276 IsEmpty]: Start isEmpty. Operand 4364 states and 6138 transitions. [2022-07-14 00:00:22,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-07-14 00:00:22,892 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:00:22,892 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:00:22,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 00:00:22,893 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:00:22,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:00:22,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1515497706, now seen corresponding path program 1 times [2022-07-14 00:00:22,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:00:22,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513447531] [2022-07-14 00:00:22,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:00:22,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:00:22,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:23,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:00:23,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:23,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:00:23,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:23,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:00:23,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:23,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:00:23,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:23,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:00:23,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:23,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:00:23,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:23,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:00:23,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:23,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:00:23,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:23,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:00:23,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:23,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:00:23,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:23,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:00:23,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:23,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 00:00:23,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:23,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 00:00:23,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:23,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 00:00:23,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:23,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:00:23,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:23,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-14 00:00:23,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:23,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 00:00:23,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:23,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 00:00:23,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:23,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-14 00:00:23,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:23,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 00:00:23,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:23,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 00:00:23,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:23,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-14 00:00:23,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:23,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 00:00:23,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:23,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-14 00:00:23,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:23,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-14 00:00:23,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:23,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-14 00:00:23,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:23,306 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2022-07-14 00:00:23,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:00:23,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513447531] [2022-07-14 00:00:23,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513447531] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:00:23,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:00:23,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:00:23,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308140784] [2022-07-14 00:00:23,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:00:23,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:00:23,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:00:23,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:00:23,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:00:23,309 INFO L87 Difference]: Start difference. First operand 4364 states and 6138 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-14 00:00:26,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:00:26,182 INFO L93 Difference]: Finished difference Result 4810 states and 7042 transitions. [2022-07-14 00:00:26,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 00:00:26,183 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 185 [2022-07-14 00:00:26,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:00:26,234 INFO L225 Difference]: With dead ends: 4810 [2022-07-14 00:00:26,236 INFO L226 Difference]: Without dead ends: 4807 [2022-07-14 00:00:26,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:00:26,260 INFO L413 NwaCegarLoop]: 1514 mSDtfsCounter, 1928 mSDsluCounter, 1451 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 796 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2104 SdHoareTripleChecker+Valid, 2965 SdHoareTripleChecker+Invalid, 1752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 796 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-14 00:00:26,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2104 Valid, 2965 Invalid, 1752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [796 Valid, 956 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-14 00:00:26,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4807 states. [2022-07-14 00:00:26,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4807 to 4363. [2022-07-14 00:00:26,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4363 states, 3113 states have (on average 1.3318342434950208) internal successors, (4146), 3164 states have internal predecessors, (4146), 961 states have call successors, (961), 277 states have call predecessors, (961), 288 states have return successors, (1029), 963 states have call predecessors, (1029), 957 states have call successors, (1029) [2022-07-14 00:00:26,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4363 states to 4363 states and 6136 transitions. [2022-07-14 00:00:26,630 INFO L78 Accepts]: Start accepts. Automaton has 4363 states and 6136 transitions. Word has length 185 [2022-07-14 00:00:26,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:00:26,631 INFO L495 AbstractCegarLoop]: Abstraction has 4363 states and 6136 transitions. [2022-07-14 00:00:26,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-14 00:00:26,631 INFO L276 IsEmpty]: Start isEmpty. Operand 4363 states and 6136 transitions. [2022-07-14 00:00:26,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-07-14 00:00:26,638 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:00:26,638 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:00:26,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 00:00:26,638 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:00:26,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:00:26,652 INFO L85 PathProgramCache]: Analyzing trace with hash 263647343, now seen corresponding path program 1 times [2022-07-14 00:00:26,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:00:26,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904058739] [2022-07-14 00:00:26,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:00:26,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:00:26,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:26,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:00:26,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:26,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:00:26,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:26,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:00:26,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:26,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:00:27,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:27,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:00:27,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:27,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:00:27,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:27,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:00:27,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:27,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:00:27,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:27,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:00:27,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:27,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:00:27,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:27,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:00:27,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:27,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 00:00:27,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:27,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 00:00:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:27,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 00:00:27,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:27,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:00:27,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:27,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-14 00:00:27,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:27,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 00:00:27,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:27,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 00:00:27,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:27,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-14 00:00:27,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:27,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 00:00:27,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:27,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 00:00:27,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:27,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-14 00:00:27,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:27,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 00:00:27,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:27,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-14 00:00:27,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:27,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-14 00:00:27,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:27,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-14 00:00:27,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:27,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2022-07-14 00:00:27,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:00:27,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904058739] [2022-07-14 00:00:27,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904058739] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:00:27,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:00:27,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:00:27,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790627493] [2022-07-14 00:00:27,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:00:27,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:00:27,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:00:27,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:00:27,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:00:27,676 INFO L87 Difference]: Start difference. First operand 4363 states and 6136 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-14 00:00:30,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:00:30,675 INFO L93 Difference]: Finished difference Result 4809 states and 7040 transitions. [2022-07-14 00:00:30,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 00:00:30,676 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 186 [2022-07-14 00:00:30,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:00:30,714 INFO L225 Difference]: With dead ends: 4809 [2022-07-14 00:00:30,714 INFO L226 Difference]: Without dead ends: 4806 [2022-07-14 00:00:30,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:00:30,719 INFO L413 NwaCegarLoop]: 1502 mSDtfsCounter, 1928 mSDsluCounter, 1449 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 805 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2105 SdHoareTripleChecker+Valid, 2951 SdHoareTripleChecker+Invalid, 1758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 805 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-07-14 00:00:30,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2105 Valid, 2951 Invalid, 1758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [805 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-07-14 00:00:30,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4806 states. [2022-07-14 00:00:30,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4806 to 4362. [2022-07-14 00:00:30,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4362 states, 3113 states have (on average 1.3315130099582397) internal successors, (4145), 3163 states have internal predecessors, (4145), 960 states have call successors, (960), 277 states have call predecessors, (960), 288 states have return successors, (1029), 963 states have call predecessors, (1029), 957 states have call successors, (1029) [2022-07-14 00:00:30,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4362 states to 4362 states and 6134 transitions. [2022-07-14 00:00:30,923 INFO L78 Accepts]: Start accepts. Automaton has 4362 states and 6134 transitions. Word has length 186 [2022-07-14 00:00:30,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:00:30,924 INFO L495 AbstractCegarLoop]: Abstraction has 4362 states and 6134 transitions. [2022-07-14 00:00:30,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-14 00:00:30,925 INFO L276 IsEmpty]: Start isEmpty. Operand 4362 states and 6134 transitions. [2022-07-14 00:00:30,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-14 00:00:30,928 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:00:30,928 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:00:30,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 00:00:30,928 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:00:30,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:00:30,929 INFO L85 PathProgramCache]: Analyzing trace with hash -417426119, now seen corresponding path program 1 times [2022-07-14 00:00:30,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:00:30,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717466051] [2022-07-14 00:00:30,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:00:30,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:00:30,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:31,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:00:31,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:31,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:00:31,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:31,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:00:31,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:31,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:00:31,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:31,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:00:31,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:31,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:00:31,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:31,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:00:31,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:31,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:00:31,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:31,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:00:31,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:31,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:00:31,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:31,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:00:31,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:31,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 00:00:31,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:31,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 00:00:31,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:31,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 00:00:31,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:31,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:00:31,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:31,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-14 00:00:31,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:31,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 00:00:31,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:31,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 00:00:31,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:31,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-14 00:00:31,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:31,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 00:00:31,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:31,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 00:00:31,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:31,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-14 00:00:31,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:31,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 00:00:31,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:31,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-14 00:00:31,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:31,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-14 00:00:31,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:31,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-14 00:00:31,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:31,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2022-07-14 00:00:31,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:00:31,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717466051] [2022-07-14 00:00:31,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717466051] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:00:31,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:00:31,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:00:31,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031818560] [2022-07-14 00:00:31,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:00:31,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:00:31,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:00:31,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:00:31,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:00:31,233 INFO L87 Difference]: Start difference. First operand 4362 states and 6134 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-14 00:00:33,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:00:33,547 INFO L93 Difference]: Finished difference Result 4808 states and 7038 transitions. [2022-07-14 00:00:33,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 00:00:33,548 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 187 [2022-07-14 00:00:33,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:00:33,585 INFO L225 Difference]: With dead ends: 4808 [2022-07-14 00:00:33,592 INFO L226 Difference]: Without dead ends: 4805 [2022-07-14 00:00:33,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:00:33,611 INFO L413 NwaCegarLoop]: 1511 mSDtfsCounter, 1918 mSDsluCounter, 1447 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 791 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2095 SdHoareTripleChecker+Valid, 2958 SdHoareTripleChecker+Invalid, 1744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 791 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-14 00:00:33,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2095 Valid, 2958 Invalid, 1744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [791 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-14 00:00:33,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4805 states. [2022-07-14 00:00:33,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4805 to 4361. [2022-07-14 00:00:33,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4361 states, 3113 states have (on average 1.3311917764214585) internal successors, (4144), 3162 states have internal predecessors, (4144), 959 states have call successors, (959), 277 states have call predecessors, (959), 288 states have return successors, (1029), 963 states have call predecessors, (1029), 957 states have call successors, (1029) [2022-07-14 00:00:33,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4361 states to 4361 states and 6132 transitions. [2022-07-14 00:00:33,787 INFO L78 Accepts]: Start accepts. Automaton has 4361 states and 6132 transitions. Word has length 187 [2022-07-14 00:00:33,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:00:33,788 INFO L495 AbstractCegarLoop]: Abstraction has 4361 states and 6132 transitions. [2022-07-14 00:00:33,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-14 00:00:33,788 INFO L276 IsEmpty]: Start isEmpty. Operand 4361 states and 6132 transitions. [2022-07-14 00:00:33,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-07-14 00:00:33,791 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:00:33,792 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:00:33,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-14 00:00:33,792 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:00:33,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:00:33,793 INFO L85 PathProgramCache]: Analyzing trace with hash -55862094, now seen corresponding path program 1 times [2022-07-14 00:00:33,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:00:33,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523871552] [2022-07-14 00:00:33,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:00:33,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:00:33,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:34,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:00:34,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:34,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:00:34,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:34,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:00:34,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:34,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:00:34,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:34,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:00:34,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:34,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:00:34,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:34,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:00:34,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:34,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:00:34,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:34,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:00:34,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:34,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:00:34,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:34,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:00:34,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:34,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 00:00:34,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:34,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 00:00:34,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:34,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 00:00:34,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:34,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:00:34,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:34,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-14 00:00:34,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:34,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 00:00:34,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:34,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 00:00:34,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:34,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-14 00:00:34,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:34,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 00:00:34,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:34,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 00:00:34,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:34,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-14 00:00:34,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:34,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 00:00:34,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:34,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-14 00:00:34,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:34,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-14 00:00:34,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:34,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-14 00:00:34,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:34,187 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2022-07-14 00:00:34,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:00:34,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523871552] [2022-07-14 00:00:34,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523871552] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:00:34,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:00:34,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:00:34,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906013593] [2022-07-14 00:00:34,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:00:34,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:00:34,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:00:34,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:00:34,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:00:34,190 INFO L87 Difference]: Start difference. First operand 4361 states and 6132 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-14 00:00:36,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:00:36,254 INFO L93 Difference]: Finished difference Result 4807 states and 7036 transitions. [2022-07-14 00:00:36,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 00:00:36,255 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 188 [2022-07-14 00:00:36,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:00:36,315 INFO L225 Difference]: With dead ends: 4807 [2022-07-14 00:00:36,316 INFO L226 Difference]: Without dead ends: 4795 [2022-07-14 00:00:36,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:00:36,330 INFO L413 NwaCegarLoop]: 1506 mSDtfsCounter, 1920 mSDsluCounter, 1447 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 791 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2098 SdHoareTripleChecker+Valid, 2953 SdHoareTripleChecker+Invalid, 1738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 791 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-14 00:00:36,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2098 Valid, 2953 Invalid, 1738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [791 Valid, 947 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-14 00:00:36,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4795 states. [2022-07-14 00:00:36,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4795 to 4351. [2022-07-14 00:00:36,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4351 states, 3104 states have (on average 1.3308634020618557) internal successors, (4131), 3152 states have internal predecessors, (4131), 958 states have call successors, (958), 277 states have call predecessors, (958), 288 states have return successors, (1029), 963 states have call predecessors, (1029), 957 states have call successors, (1029) [2022-07-14 00:00:36,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4351 states to 4351 states and 6118 transitions. [2022-07-14 00:00:36,526 INFO L78 Accepts]: Start accepts. Automaton has 4351 states and 6118 transitions. Word has length 188 [2022-07-14 00:00:36,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:00:36,527 INFO L495 AbstractCegarLoop]: Abstraction has 4351 states and 6118 transitions. [2022-07-14 00:00:36,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-14 00:00:36,527 INFO L276 IsEmpty]: Start isEmpty. Operand 4351 states and 6118 transitions. [2022-07-14 00:00:36,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2022-07-14 00:00:36,537 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:00:36,538 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:00:36,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-14 00:00:36,538 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:00:36,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:00:36,539 INFO L85 PathProgramCache]: Analyzing trace with hash 734121489, now seen corresponding path program 1 times [2022-07-14 00:00:36,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:00:36,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248464850] [2022-07-14 00:00:36,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:00:36,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:00:36,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:36,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:00:36,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:36,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:00:36,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:36,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:00:36,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:36,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:00:36,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:36,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:00:36,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:36,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:00:36,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:36,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:00:36,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:36,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:00:36,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:36,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:00:36,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:36,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:00:36,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:36,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:00:36,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:36,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 00:00:36,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:36,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 00:00:36,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:36,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 00:00:36,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:36,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:00:36,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:36,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-14 00:00:36,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:36,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 00:00:36,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:36,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 00:00:36,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:36,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-14 00:00:36,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:36,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 00:00:36,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:36,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 00:00:36,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:36,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-14 00:00:36,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:36,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 00:00:36,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:36,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-14 00:00:36,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:36,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-14 00:00:36,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:37,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-14 00:00:37,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:37,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-14 00:00:37,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:37,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:00:37,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:37,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:00:37,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:37,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-14 00:00:37,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:37,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-14 00:00:37,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:37,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-14 00:00:37,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:37,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-14 00:00:37,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:37,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-14 00:00:37,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:37,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:00:37,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:37,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-14 00:00:37,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:37,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:00:37,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:37,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 00:00:37,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:37,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-14 00:00:37,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:37,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-07-14 00:00:37,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:37,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-07-14 00:00:37,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:37,132 INFO L134 CoverageAnalysis]: Checked inductivity of 1241 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1232 trivial. 0 not checked. [2022-07-14 00:00:37,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:00:37,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248464850] [2022-07-14 00:00:37,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248464850] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:00:37,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:00:37,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 00:00:37,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97716823] [2022-07-14 00:00:37,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:00:37,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 00:00:37,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:00:37,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 00:00:37,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-07-14 00:00:37,133 INFO L87 Difference]: Start difference. First operand 4351 states and 6118 transitions. Second operand has 10 states, 10 states have (on average 13.5) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (42), 9 states have call predecessors, (42), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-07-14 00:00:42,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:00:42,575 INFO L93 Difference]: Finished difference Result 11248 states and 16329 transitions. [2022-07-14 00:00:42,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-14 00:00:42,576 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.5) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (42), 9 states have call predecessors, (42), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 305 [2022-07-14 00:00:42,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:00:42,635 INFO L225 Difference]: With dead ends: 11248 [2022-07-14 00:00:42,635 INFO L226 Difference]: Without dead ends: 6950 [2022-07-14 00:00:42,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2022-07-14 00:00:42,657 INFO L413 NwaCegarLoop]: 1526 mSDtfsCounter, 2487 mSDsluCounter, 4449 mSDsCounter, 0 mSdLazyCounter, 4463 mSolverCounterSat, 2111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2638 SdHoareTripleChecker+Valid, 5975 SdHoareTripleChecker+Invalid, 6574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2111 IncrementalHoareTripleChecker+Valid, 4463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-07-14 00:00:42,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2638 Valid, 5975 Invalid, 6574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2111 Valid, 4463 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-07-14 00:00:42,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6950 states. [2022-07-14 00:00:42,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6950 to 6148. [2022-07-14 00:00:42,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6148 states, 4466 states have (on average 1.3463949843260188) internal successors, (6013), 4522 states have internal predecessors, (6013), 1279 states have call successors, (1279), 375 states have call predecessors, (1279), 402 states have return successors, (1410), 1292 states have call predecessors, (1410), 1278 states have call successors, (1410) [2022-07-14 00:00:42,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6148 states to 6148 states and 8702 transitions. [2022-07-14 00:00:42,869 INFO L78 Accepts]: Start accepts. Automaton has 6148 states and 8702 transitions. Word has length 305 [2022-07-14 00:00:42,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:00:42,870 INFO L495 AbstractCegarLoop]: Abstraction has 6148 states and 8702 transitions. [2022-07-14 00:00:42,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.5) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (42), 9 states have call predecessors, (42), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-07-14 00:00:42,870 INFO L276 IsEmpty]: Start isEmpty. Operand 6148 states and 8702 transitions. [2022-07-14 00:00:42,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2022-07-14 00:00:42,883 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:00:42,884 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:00:42,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-14 00:00:42,884 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:00:42,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:00:42,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1812933429, now seen corresponding path program 1 times [2022-07-14 00:00:42,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:00:42,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278493778] [2022-07-14 00:00:42,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:00:42,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:00:42,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:00:43,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:00:43,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:00:43,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:00:43,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:00:43,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:00:43,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:00:43,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:00:43,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:00:43,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:00:43,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:00:43,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 00:00:43,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 00:00:43,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 00:00:43,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:00:43,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-14 00:00:43,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 00:00:43,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 00:00:43,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-14 00:00:43,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 00:00:43,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 00:00:43,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-14 00:00:43,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 00:00:43,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-14 00:00:43,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-14 00:00:43,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-14 00:00:43,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-14 00:00:43,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-14 00:00:43,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:00:43,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:00:43,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-07-14 00:00:43,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-14 00:00:43,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-07-14 00:00:43,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-14 00:00:43,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-07-14 00:00:43,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:00:43,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-07-14 00:00:43,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:00:43,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 00:00:43,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-07-14 00:00:43,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-07-14 00:00:43,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2022-07-14 00:00:43,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:43,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1373 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 1341 trivial. 0 not checked. [2022-07-14 00:00:43,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:00:43,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278493778] [2022-07-14 00:00:43,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278493778] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:00:43,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:00:43,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 00:00:43,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344299472] [2022-07-14 00:00:43,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:00:43,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 00:00:43,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:00:43,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 00:00:43,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-07-14 00:00:43,365 INFO L87 Difference]: Start difference. First operand 6148 states and 8702 transitions. Second operand has 10 states, 10 states have (on average 14.9) internal successors, (149), 3 states have internal predecessors, (149), 2 states have call successors, (43), 9 states have call predecessors, (43), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-07-14 00:00:47,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:00:47,617 INFO L93 Difference]: Finished difference Result 10119 states and 14590 transitions. [2022-07-14 00:00:47,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 00:00:47,618 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.9) internal successors, (149), 3 states have internal predecessors, (149), 2 states have call successors, (43), 9 states have call predecessors, (43), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 332 [2022-07-14 00:00:47,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:00:47,635 INFO L225 Difference]: With dead ends: 10119 [2022-07-14 00:00:47,635 INFO L226 Difference]: Without dead ends: 4034 [2022-07-14 00:00:47,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2022-07-14 00:00:47,653 INFO L413 NwaCegarLoop]: 1461 mSDtfsCounter, 1691 mSDsluCounter, 4484 mSDsCounter, 0 mSdLazyCounter, 3955 mSolverCounterSat, 1808 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1760 SdHoareTripleChecker+Valid, 5945 SdHoareTripleChecker+Invalid, 5763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1808 IncrementalHoareTripleChecker+Valid, 3955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-07-14 00:00:47,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1760 Valid, 5945 Invalid, 5763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1808 Valid, 3955 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-07-14 00:00:47,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4034 states. [2022-07-14 00:00:47,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4034 to 3596. [2022-07-14 00:00:47,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3596 states, 2620 states have (on average 1.3458015267175572) internal successors, (3526), 2648 states have internal predecessors, (3526), 745 states have call successors, (745), 217 states have call predecessors, (745), 230 states have return successors, (810), 751 states have call predecessors, (810), 744 states have call successors, (810) [2022-07-14 00:00:47,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3596 states to 3596 states and 5081 transitions. [2022-07-14 00:00:47,778 INFO L78 Accepts]: Start accepts. Automaton has 3596 states and 5081 transitions. Word has length 332 [2022-07-14 00:00:47,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:00:47,779 INFO L495 AbstractCegarLoop]: Abstraction has 3596 states and 5081 transitions. [2022-07-14 00:00:47,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.9) internal successors, (149), 3 states have internal predecessors, (149), 2 states have call successors, (43), 9 states have call predecessors, (43), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-07-14 00:00:47,779 INFO L276 IsEmpty]: Start isEmpty. Operand 3596 states and 5081 transitions. [2022-07-14 00:00:47,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2022-07-14 00:00:47,791 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:00:47,791 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:00:47,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-14 00:00:47,791 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:00:47,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:00:47,792 INFO L85 PathProgramCache]: Analyzing trace with hash -441968209, now seen corresponding path program 1 times [2022-07-14 00:00:47,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:00:47,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356793484] [2022-07-14 00:00:47,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:00:47,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:00:47,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:47,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:00:47,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:47,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:00:48,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:00:48,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:00:48,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:00:48,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:00:48,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:00:48,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:00:48,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:00:48,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:00:48,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:00:48,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 00:00:48,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 00:00:48,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 00:00:48,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:00:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-14 00:00:48,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 00:00:48,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 00:00:48,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-14 00:00:48,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 00:00:48,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 00:00:48,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-14 00:00:48,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 00:00:48,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-14 00:00:48,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-14 00:00:48,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-14 00:00:48,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-14 00:00:48,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-14 00:00:48,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-14 00:00:48,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-14 00:00:48,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-14 00:00:48,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-14 00:00:48,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-14 00:00:48,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-14 00:00:48,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-14 00:00:48,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-14 00:00:48,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-14 00:00:48,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-14 00:00:48,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-14 00:00:48,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-07-14 00:00:48,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:00:48,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:00:48,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-07-14 00:00:48,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-07-14 00:00:48,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2022-07-14 00:00:48,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2022-07-14 00:00:48,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-07-14 00:00:48,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:00:48,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-14 00:00:48,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:00:48,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 00:00:48,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2022-07-14 00:00:48,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-07-14 00:00:48,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:48,255 INFO L134 CoverageAnalysis]: Checked inductivity of 2727 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2705 trivial. 0 not checked. [2022-07-14 00:00:48,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:00:48,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356793484] [2022-07-14 00:00:48,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356793484] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:00:48,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:00:48,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-14 00:00:48,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564175641] [2022-07-14 00:00:48,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:00:48,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 00:00:48,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:00:48,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 00:00:48,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-14 00:00:48,259 INFO L87 Difference]: Start difference. First operand 3596 states and 5081 transitions. Second operand has 11 states, 11 states have (on average 14.727272727272727) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (54), 9 states have call predecessors, (54), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-07-14 00:00:53,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:00:53,398 INFO L93 Difference]: Finished difference Result 8752 states and 13117 transitions. [2022-07-14 00:00:53,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 00:00:53,399 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 14.727272727272727) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (54), 9 states have call predecessors, (54), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 400 [2022-07-14 00:00:53,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:00:53,440 INFO L225 Difference]: With dead ends: 8752 [2022-07-14 00:00:53,455 INFO L226 Difference]: Without dead ends: 5645 [2022-07-14 00:00:53,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-14 00:00:53,467 INFO L413 NwaCegarLoop]: 1890 mSDtfsCounter, 2353 mSDsluCounter, 4718 mSDsCounter, 0 mSdLazyCounter, 3639 mSolverCounterSat, 1707 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2498 SdHoareTripleChecker+Valid, 6608 SdHoareTripleChecker+Invalid, 5346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1707 IncrementalHoareTripleChecker+Valid, 3639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-07-14 00:00:53,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2498 Valid, 6608 Invalid, 5346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1707 Valid, 3639 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-07-14 00:00:53,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5645 states. [2022-07-14 00:00:53,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5645 to 3600. [2022-07-14 00:00:53,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3600 states, 2624 states have (on average 1.3452743902439024) internal successors, (3530), 2652 states have internal predecessors, (3530), 745 states have call successors, (745), 217 states have call predecessors, (745), 230 states have return successors, (810), 751 states have call predecessors, (810), 744 states have call successors, (810) [2022-07-14 00:00:53,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3600 states to 3600 states and 5085 transitions. [2022-07-14 00:00:53,868 INFO L78 Accepts]: Start accepts. Automaton has 3600 states and 5085 transitions. Word has length 400 [2022-07-14 00:00:53,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:00:53,869 INFO L495 AbstractCegarLoop]: Abstraction has 3600 states and 5085 transitions. [2022-07-14 00:00:53,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 14.727272727272727) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (54), 9 states have call predecessors, (54), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-07-14 00:00:53,870 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 5085 transitions. [2022-07-14 00:00:53,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2022-07-14 00:00:53,895 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:00:53,896 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:00:53,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-14 00:00:53,896 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:00:53,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:00:53,897 INFO L85 PathProgramCache]: Analyzing trace with hash 218678581, now seen corresponding path program 1 times [2022-07-14 00:00:53,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:00:53,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950670615] [2022-07-14 00:00:53,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:00:53,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:00:54,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:00:54,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:00:54,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:00:54,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:00:54,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:00:54,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:00:54,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:00:54,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:00:54,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:00:54,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:00:54,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:00:54,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 00:00:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 00:00:54,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 00:00:54,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:00:54,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-14 00:00:54,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 00:00:54,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 00:00:54,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-14 00:00:54,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 00:00:54,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 00:00:54,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-14 00:00:54,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 00:00:54,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-14 00:00:54,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-14 00:00:54,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-14 00:00:54,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-14 00:00:54,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-14 00:00:54,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-14 00:00:54,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-14 00:00:54,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-14 00:00:54,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-14 00:00:54,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-14 00:00:54,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-14 00:00:54,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-14 00:00:54,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-14 00:00:54,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-14 00:00:54,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-14 00:00:54,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-14 00:00:54,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-07-14 00:00:54,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:00:54,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:00:54,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-07-14 00:00:54,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-07-14 00:00:54,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2022-07-14 00:00:54,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:00:54,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-07-14 00:00:54,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-07-14 00:00:54,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:00:54,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-14 00:00:54,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-07-14 00:00:54,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-07-14 00:00:54,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2022-07-14 00:00:54,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-07-14 00:00:54,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2022-07-14 00:00:54,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2022-07-14 00:00:54,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:00:54,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-07-14 00:00:54,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:00:54,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 00:00:54,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2022-07-14 00:00:54,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2022-07-14 00:00:54,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:00:54,930 INFO L134 CoverageAnalysis]: Checked inductivity of 2780 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2758 trivial. 0 not checked. [2022-07-14 00:00:54,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:00:54,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950670615] [2022-07-14 00:00:54,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950670615] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:00:54,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:00:54,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 00:00:54,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327851547] [2022-07-14 00:00:54,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:00:54,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 00:00:54,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:00:54,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 00:00:54,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-07-14 00:00:54,946 INFO L87 Difference]: Start difference. First operand 3600 states and 5085 transitions. Second operand has 12 states, 12 states have (on average 15.583333333333334) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (62), 9 states have call predecessors, (62), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2022-07-14 00:01:00,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:01:00,877 INFO L93 Difference]: Finished difference Result 9663 states and 14650 transitions. [2022-07-14 00:01:00,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-14 00:01:00,879 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 15.583333333333334) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (62), 9 states have call predecessors, (62), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 458 [2022-07-14 00:01:00,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:01:00,944 INFO L225 Difference]: With dead ends: 9663 [2022-07-14 00:01:00,954 INFO L226 Difference]: Without dead ends: 6552 [2022-07-14 00:01:00,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2022-07-14 00:01:00,983 INFO L413 NwaCegarLoop]: 2261 mSDtfsCounter, 3132 mSDsluCounter, 8235 mSDsCounter, 0 mSdLazyCounter, 5456 mSolverCounterSat, 1958 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3279 SdHoareTripleChecker+Valid, 10496 SdHoareTripleChecker+Invalid, 7414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1958 IncrementalHoareTripleChecker+Valid, 5456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-07-14 00:01:00,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3279 Valid, 10496 Invalid, 7414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1958 Valid, 5456 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-07-14 00:01:00,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6552 states. [2022-07-14 00:01:01,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6552 to 3606. [2022-07-14 00:01:01,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3606 states, 2630 states have (on average 1.3444866920152092) internal successors, (3536), 2658 states have internal predecessors, (3536), 745 states have call successors, (745), 217 states have call predecessors, (745), 230 states have return successors, (810), 751 states have call predecessors, (810), 744 states have call successors, (810) [2022-07-14 00:01:01,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3606 states to 3606 states and 5091 transitions. [2022-07-14 00:01:01,202 INFO L78 Accepts]: Start accepts. Automaton has 3606 states and 5091 transitions. Word has length 458 [2022-07-14 00:01:01,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:01:01,204 INFO L495 AbstractCegarLoop]: Abstraction has 3606 states and 5091 transitions. [2022-07-14 00:01:01,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.583333333333334) internal successors, (187), 5 states have internal predecessors, (187), 2 states have call successors, (62), 9 states have call predecessors, (62), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2022-07-14 00:01:01,204 INFO L276 IsEmpty]: Start isEmpty. Operand 3606 states and 5091 transitions. [2022-07-14 00:01:01,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2022-07-14 00:01:01,215 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:01:01,216 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:01:01,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-14 00:01:01,216 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:01:01,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:01:01,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1282570820, now seen corresponding path program 1 times [2022-07-14 00:01:01,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:01:01,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192596594] [2022-07-14 00:01:01,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:01:01,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:01:01,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:01:01,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:01:01,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:01:01,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:01:01,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:01:01,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:01:01,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:01:01,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:01:01,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:01:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:01:01,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:01:01,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 00:01:01,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 00:01:01,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 00:01:01,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:01:01,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-14 00:01:01,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 00:01:01,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 00:01:01,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-14 00:01:01,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 00:01:01,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 00:01:01,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-14 00:01:01,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 00:01:01,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-14 00:01:01,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-14 00:01:01,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-14 00:01:01,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-14 00:01:01,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-14 00:01:01,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-14 00:01:01,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-14 00:01:01,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-14 00:01:01,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-14 00:01:01,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-14 00:01:01,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-14 00:01:01,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-14 00:01:01,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-14 00:01:01,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-14 00:01:01,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-14 00:01:01,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-14 00:01:01,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-07-14 00:01:01,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:01,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:01,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-07-14 00:01:01,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-07-14 00:01:01,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2022-07-14 00:01:01,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:01,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-07-14 00:01:01,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-07-14 00:01:01,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:01,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-14 00:01:01,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-07-14 00:01:01,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-07-14 00:01:01,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-07-14 00:01:01,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2022-07-14 00:01:01,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-07-14 00:01:01,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2022-07-14 00:01:01,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:01,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2022-07-14 00:01:01,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:01,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 00:01:01,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-07-14 00:01:01,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2022-07-14 00:01:01,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:01,741 INFO L134 CoverageAnalysis]: Checked inductivity of 2780 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2758 trivial. 0 not checked. [2022-07-14 00:01:01,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:01:01,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192596594] [2022-07-14 00:01:01,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192596594] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:01:01,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:01:01,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 00:01:01,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218790050] [2022-07-14 00:01:01,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:01:01,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 00:01:01,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:01:01,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 00:01:01,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-07-14 00:01:01,744 INFO L87 Difference]: Start difference. First operand 3606 states and 5091 transitions. Second operand has 12 states, 12 states have (on average 15.75) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (62), 9 states have call predecessors, (62), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2022-07-14 00:01:07,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:01:07,420 INFO L93 Difference]: Finished difference Result 9703 states and 14702 transitions. [2022-07-14 00:01:07,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-14 00:01:07,431 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 15.75) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (62), 9 states have call predecessors, (62), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 460 [2022-07-14 00:01:07,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:01:07,475 INFO L225 Difference]: With dead ends: 9703 [2022-07-14 00:01:07,475 INFO L226 Difference]: Without dead ends: 6586 [2022-07-14 00:01:07,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2022-07-14 00:01:07,499 INFO L413 NwaCegarLoop]: 2307 mSDtfsCounter, 3592 mSDsluCounter, 8505 mSDsCounter, 0 mSdLazyCounter, 5395 mSolverCounterSat, 2595 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3741 SdHoareTripleChecker+Valid, 10812 SdHoareTripleChecker+Invalid, 7990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2595 IncrementalHoareTripleChecker+Valid, 5395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-07-14 00:01:07,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3741 Valid, 10812 Invalid, 7990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2595 Valid, 5395 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-07-14 00:01:07,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6586 states. [2022-07-14 00:01:07,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6586 to 3612. [2022-07-14 00:01:07,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3612 states, 2636 states have (on average 1.3437025796661608) internal successors, (3542), 2664 states have internal predecessors, (3542), 745 states have call successors, (745), 217 states have call predecessors, (745), 230 states have return successors, (810), 751 states have call predecessors, (810), 744 states have call successors, (810) [2022-07-14 00:01:07,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3612 states to 3612 states and 5097 transitions. [2022-07-14 00:01:07,673 INFO L78 Accepts]: Start accepts. Automaton has 3612 states and 5097 transitions. Word has length 460 [2022-07-14 00:01:07,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:01:07,674 INFO L495 AbstractCegarLoop]: Abstraction has 3612 states and 5097 transitions. [2022-07-14 00:01:07,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.75) internal successors, (189), 5 states have internal predecessors, (189), 2 states have call successors, (62), 9 states have call predecessors, (62), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2022-07-14 00:01:07,674 INFO L276 IsEmpty]: Start isEmpty. Operand 3612 states and 5097 transitions. [2022-07-14 00:01:07,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2022-07-14 00:01:07,686 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:01:07,686 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:01:07,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-14 00:01:07,686 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:01:07,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:01:07,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1486019019, now seen corresponding path program 1 times [2022-07-14 00:01:07,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:01:07,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559088624] [2022-07-14 00:01:07,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:01:07,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:01:07,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:01:08,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:01:08,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:01:08,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:01:08,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:01:08,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:01:08,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:01:08,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:01:08,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:01:08,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:01:08,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:01:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 00:01:08,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 00:01:08,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 00:01:08,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:01:08,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-14 00:01:08,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 00:01:08,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 00:01:08,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-14 00:01:08,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 00:01:08,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 00:01:08,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-14 00:01:08,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 00:01:08,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-14 00:01:08,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-14 00:01:08,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-14 00:01:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-14 00:01:08,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-14 00:01:08,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-14 00:01:08,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-14 00:01:08,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-14 00:01:08,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-14 00:01:08,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-14 00:01:08,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-14 00:01:08,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-14 00:01:08,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-14 00:01:08,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-14 00:01:08,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-14 00:01:08,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-14 00:01:08,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-07-14 00:01:08,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:08,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:08,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-07-14 00:01:08,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-07-14 00:01:08,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2022-07-14 00:01:08,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:08,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-07-14 00:01:08,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-07-14 00:01:08,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:08,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-14 00:01:08,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-07-14 00:01:08,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-07-14 00:01:08,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2022-07-14 00:01:08,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2022-07-14 00:01:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2022-07-14 00:01:08,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-07-14 00:01:08,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:08,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2022-07-14 00:01:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:08,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 00:01:08,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2022-07-14 00:01:08,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2022-07-14 00:01:08,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:08,444 INFO L134 CoverageAnalysis]: Checked inductivity of 2780 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 2748 trivial. 0 not checked. [2022-07-14 00:01:08,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:01:08,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559088624] [2022-07-14 00:01:08,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559088624] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:01:08,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277112053] [2022-07-14 00:01:08,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:01:08,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:01:08,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:01:08,446 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) [2022-07-14 00:01:08,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-14 00:01:09,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:09,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 4432 conjuncts, 59 conjunts are in the unsatisfiable core [2022-07-14 00:01:09,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:01:09,995 INFO L134 CoverageAnalysis]: Checked inductivity of 2780 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 2724 trivial. 0 not checked. [2022-07-14 00:01:09,996 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:01:09,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277112053] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:01:09,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:01:09,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 19 [2022-07-14 00:01:09,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737517389] [2022-07-14 00:01:09,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:01:09,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 00:01:09,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:01:09,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 00:01:09,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2022-07-14 00:01:09,998 INFO L87 Difference]: Start difference. First operand 3612 states and 5097 transitions. Second operand has 10 states, 10 states have (on average 19.6) internal successors, (196), 7 states have internal predecessors, (196), 2 states have call successors, (62), 2 states have call predecessors, (62), 5 states have return successors, (61), 5 states have call predecessors, (61), 2 states have call successors, (61) [2022-07-14 00:01:10,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:01:10,436 INFO L93 Difference]: Finished difference Result 7546 states and 10805 transitions. [2022-07-14 00:01:10,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 00:01:10,437 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 19.6) internal successors, (196), 7 states have internal predecessors, (196), 2 states have call successors, (62), 2 states have call predecessors, (62), 5 states have return successors, (61), 5 states have call predecessors, (61), 2 states have call successors, (61) Word has length 462 [2022-07-14 00:01:10,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:01:10,449 INFO L225 Difference]: With dead ends: 7546 [2022-07-14 00:01:10,449 INFO L226 Difference]: Without dead ends: 4423 [2022-07-14 00:01:10,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 592 GetRequests, 573 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2022-07-14 00:01:10,483 INFO L413 NwaCegarLoop]: 1968 mSDtfsCounter, 286 mSDsluCounter, 15364 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 17332 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:01:10,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 17332 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 00:01:10,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4423 states. [2022-07-14 00:01:10,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4423 to 3632. [2022-07-14 00:01:10,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3632 states, 2651 states have (on average 1.3417578272350057) internal successors, (3557), 2678 states have internal predecessors, (3557), 745 states have call successors, (745), 217 states have call predecessors, (745), 235 states have return successors, (825), 757 states have call predecessors, (825), 744 states have call successors, (825) [2022-07-14 00:01:10,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3632 states to 3632 states and 5127 transitions. [2022-07-14 00:01:10,713 INFO L78 Accepts]: Start accepts. Automaton has 3632 states and 5127 transitions. Word has length 462 [2022-07-14 00:01:10,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:01:10,713 INFO L495 AbstractCegarLoop]: Abstraction has 3632 states and 5127 transitions. [2022-07-14 00:01:10,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 19.6) internal successors, (196), 7 states have internal predecessors, (196), 2 states have call successors, (62), 2 states have call predecessors, (62), 5 states have return successors, (61), 5 states have call predecessors, (61), 2 states have call successors, (61) [2022-07-14 00:01:10,714 INFO L276 IsEmpty]: Start isEmpty. Operand 3632 states and 5127 transitions. [2022-07-14 00:01:10,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2022-07-14 00:01:10,726 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:01:10,727 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:01:10,786 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-14 00:01:10,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-14 00:01:10,944 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:01:10,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:01:10,944 INFO L85 PathProgramCache]: Analyzing trace with hash 983297457, now seen corresponding path program 1 times [2022-07-14 00:01:10,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:01:10,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397776876] [2022-07-14 00:01:10,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:01:10,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:01:11,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:01:11,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:01:11,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:01:11,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:01:11,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:01:11,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:01:11,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:01:11,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:01:11,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:01:11,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:01:11,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:01:11,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 00:01:11,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 00:01:11,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 00:01:11,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:01:11,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-14 00:01:11,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 00:01:11,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 00:01:11,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-14 00:01:11,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 00:01:11,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 00:01:11,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-14 00:01:11,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 00:01:11,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-14 00:01:11,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-14 00:01:11,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-14 00:01:11,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-14 00:01:11,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-14 00:01:11,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-14 00:01:11,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-14 00:01:11,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-14 00:01:11,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-14 00:01:11,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-14 00:01:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-14 00:01:11,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-14 00:01:11,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-14 00:01:11,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-14 00:01:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-14 00:01:11,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-14 00:01:11,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-07-14 00:01:11,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:11,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:11,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:01:11,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-07-14 00:01:11,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-07-14 00:01:11,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-07-14 00:01:11,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:11,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-07-14 00:01:11,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-07-14 00:01:11,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:11,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2022-07-14 00:01:11,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-07-14 00:01:11,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-07-14 00:01:11,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-07-14 00:01:11,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2022-07-14 00:01:11,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-07-14 00:01:11,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2022-07-14 00:01:11,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:11,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2022-07-14 00:01:11,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:11,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 00:01:11,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-07-14 00:01:11,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2022-07-14 00:01:11,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:11,554 INFO L134 CoverageAnalysis]: Checked inductivity of 2780 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 2748 trivial. 0 not checked. [2022-07-14 00:01:11,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:01:11,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397776876] [2022-07-14 00:01:11,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397776876] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:01:11,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320080644] [2022-07-14 00:01:11,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:01:11,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:01:11,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:01:11,584 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) [2022-07-14 00:01:11,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-14 00:01:12,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:12,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 4458 conjuncts, 19 conjunts are in the unsatisfiable core [2022-07-14 00:01:12,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:01:12,850 INFO L134 CoverageAnalysis]: Checked inductivity of 2780 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 2738 trivial. 0 not checked. [2022-07-14 00:01:12,850 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:01:12,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320080644] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:01:12,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:01:12,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 12 [2022-07-14 00:01:12,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534989488] [2022-07-14 00:01:12,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:01:12,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:01:12,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:01:12,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:01:12,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-07-14 00:01:12,852 INFO L87 Difference]: Start difference. First operand 3632 states and 5127 transitions. Second operand has 5 states, 5 states have (on average 39.8) internal successors, (199), 4 states have internal predecessors, (199), 2 states have call successors, (63), 2 states have call predecessors, (63), 3 states have return successors, (62), 3 states have call predecessors, (62), 2 states have call successors, (62) [2022-07-14 00:01:12,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:01:12,994 INFO L93 Difference]: Finished difference Result 6779 states and 9566 transitions. [2022-07-14 00:01:12,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 00:01:12,995 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 4 states have internal predecessors, (199), 2 states have call successors, (63), 2 states have call predecessors, (63), 3 states have return successors, (62), 3 states have call predecessors, (62), 2 states have call successors, (62) Word has length 468 [2022-07-14 00:01:12,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:01:13,015 INFO L225 Difference]: With dead ends: 6779 [2022-07-14 00:01:13,015 INFO L226 Difference]: Without dead ends: 3632 [2022-07-14 00:01:13,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 599 GetRequests, 587 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-07-14 00:01:13,028 INFO L413 NwaCegarLoop]: 1587 mSDtfsCounter, 0 mSDsluCounter, 4750 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6337 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 00:01:13,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6337 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 00:01:13,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3632 states. [2022-07-14 00:01:13,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3632 to 3632. [2022-07-14 00:01:13,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3632 states, 2651 states have (on average 1.3417578272350057) internal successors, (3557), 2678 states have internal predecessors, (3557), 745 states have call successors, (745), 217 states have call predecessors, (745), 235 states have return successors, (823), 757 states have call predecessors, (823), 744 states have call successors, (823) [2022-07-14 00:01:13,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3632 states to 3632 states and 5125 transitions. [2022-07-14 00:01:13,168 INFO L78 Accepts]: Start accepts. Automaton has 3632 states and 5125 transitions. Word has length 468 [2022-07-14 00:01:13,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:01:13,169 INFO L495 AbstractCegarLoop]: Abstraction has 3632 states and 5125 transitions. [2022-07-14 00:01:13,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 4 states have internal predecessors, (199), 2 states have call successors, (63), 2 states have call predecessors, (63), 3 states have return successors, (62), 3 states have call predecessors, (62), 2 states have call successors, (62) [2022-07-14 00:01:13,169 INFO L276 IsEmpty]: Start isEmpty. Operand 3632 states and 5125 transitions. [2022-07-14 00:01:13,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2022-07-14 00:01:13,179 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:01:13,179 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:01:13,209 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-14 00:01:13,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-07-14 00:01:13,400 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:01:13,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:01:13,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1043309421, now seen corresponding path program 2 times [2022-07-14 00:01:13,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:01:13,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884588705] [2022-07-14 00:01:13,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:01:13,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:01:13,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:01:13,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:01:13,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:01:13,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:01:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:01:13,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:01:13,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:01:13,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:01:13,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:01:13,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:01:13,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:01:13,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 00:01:13,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 00:01:13,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 00:01:13,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:01:13,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-14 00:01:13,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 00:01:13,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 00:01:13,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-14 00:01:13,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 00:01:13,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 00:01:13,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-14 00:01:13,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 00:01:13,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-14 00:01:13,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-14 00:01:13,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-14 00:01:13,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-14 00:01:13,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-14 00:01:13,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-14 00:01:13,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-14 00:01:13,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-14 00:01:13,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-14 00:01:13,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-14 00:01:13,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-14 00:01:13,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-14 00:01:13,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-14 00:01:13,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-14 00:01:13,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-14 00:01:13,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-14 00:01:13,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:01:13,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-07-14 00:01:13,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:13,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:13,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:01:13,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-07-14 00:01:13,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-07-14 00:01:13,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-07-14 00:01:13,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:13,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-07-14 00:01:13,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-14 00:01:13,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:13,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2022-07-14 00:01:13,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-07-14 00:01:13,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-07-14 00:01:13,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2022-07-14 00:01:13,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-07-14 00:01:13,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2022-07-14 00:01:13,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2022-07-14 00:01:13,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:13,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-07-14 00:01:13,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:13,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 00:01:13,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2022-07-14 00:01:13,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2022-07-14 00:01:13,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:13,947 INFO L134 CoverageAnalysis]: Checked inductivity of 2786 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2764 trivial. 0 not checked. [2022-07-14 00:01:13,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:01:13,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884588705] [2022-07-14 00:01:13,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884588705] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:01:13,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:01:13,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-14 00:01:13,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506017582] [2022-07-14 00:01:13,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:01:13,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 00:01:13,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:01:13,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 00:01:13,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-14 00:01:13,949 INFO L87 Difference]: Start difference. First operand 3632 states and 5125 transitions. Second operand has 11 states, 11 states have (on average 17.818181818181817) internal successors, (196), 4 states have internal predecessors, (196), 2 states have call successors, (63), 9 states have call predecessors, (63), 1 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2022-07-14 00:01:18,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:01:18,924 INFO L93 Difference]: Finished difference Result 8025 states and 11832 transitions. [2022-07-14 00:01:18,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 00:01:18,925 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 17.818181818181817) internal successors, (196), 4 states have internal predecessors, (196), 2 states have call successors, (63), 9 states have call predecessors, (63), 1 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) Word has length 474 [2022-07-14 00:01:18,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:01:18,947 INFO L225 Difference]: With dead ends: 8025 [2022-07-14 00:01:18,947 INFO L226 Difference]: Without dead ends: 4882 [2022-07-14 00:01:18,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-14 00:01:18,963 INFO L413 NwaCegarLoop]: 1843 mSDtfsCounter, 2352 mSDsluCounter, 6124 mSDsCounter, 0 mSdLazyCounter, 4558 mSolverCounterSat, 2014 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2421 SdHoareTripleChecker+Valid, 7967 SdHoareTripleChecker+Invalid, 6572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2014 IncrementalHoareTripleChecker+Valid, 4558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-07-14 00:01:18,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2421 Valid, 7967 Invalid, 6572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2014 Valid, 4558 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-07-14 00:01:18,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4882 states. [2022-07-14 00:01:19,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4882 to 3636. [2022-07-14 00:01:19,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3636 states, 2655 states have (on average 1.3412429378531074) internal successors, (3561), 2682 states have internal predecessors, (3561), 745 states have call successors, (745), 217 states have call predecessors, (745), 235 states have return successors, (823), 757 states have call predecessors, (823), 744 states have call successors, (823) [2022-07-14 00:01:19,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3636 states to 3636 states and 5129 transitions. [2022-07-14 00:01:19,158 INFO L78 Accepts]: Start accepts. Automaton has 3636 states and 5129 transitions. Word has length 474 [2022-07-14 00:01:19,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:01:19,159 INFO L495 AbstractCegarLoop]: Abstraction has 3636 states and 5129 transitions. [2022-07-14 00:01:19,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 17.818181818181817) internal successors, (196), 4 states have internal predecessors, (196), 2 states have call successors, (63), 9 states have call predecessors, (63), 1 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2022-07-14 00:01:19,159 INFO L276 IsEmpty]: Start isEmpty. Operand 3636 states and 5129 transitions. [2022-07-14 00:01:19,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2022-07-14 00:01:19,169 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:01:19,170 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:01:19,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-14 00:01:19,170 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:01:19,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:01:19,170 INFO L85 PathProgramCache]: Analyzing trace with hash -685530874, now seen corresponding path program 1 times [2022-07-14 00:01:19,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:01:19,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707043772] [2022-07-14 00:01:19,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:01:19,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:01:19,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:01:19,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:01:19,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:01:19,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:01:19,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:01:19,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:01:19,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:01:19,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:01:19,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:01:19,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:01:19,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:01:19,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 00:01:19,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 00:01:19,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 00:01:19,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:01:19,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-14 00:01:19,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 00:01:19,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 00:01:19,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-14 00:01:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 00:01:19,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 00:01:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-14 00:01:19,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 00:01:19,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-14 00:01:19,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-14 00:01:19,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-14 00:01:19,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-14 00:01:19,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-14 00:01:19,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-14 00:01:19,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-14 00:01:19,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-14 00:01:19,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-14 00:01:19,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-14 00:01:19,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-14 00:01:19,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-14 00:01:19,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-14 00:01:19,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-14 00:01:19,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-14 00:01:19,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-14 00:01:19,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:01:19,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-07-14 00:01:19,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:19,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:19,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:01:19,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-07-14 00:01:19,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-07-14 00:01:19,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-07-14 00:01:19,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2022-07-14 00:01:19,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:19,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-07-14 00:01:19,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2022-07-14 00:01:19,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:19,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2022-07-14 00:01:19,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-07-14 00:01:19,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-07-14 00:01:19,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2022-07-14 00:01:19,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2022-07-14 00:01:19,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2022-07-14 00:01:19,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-07-14 00:01:19,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:19,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2022-07-14 00:01:19,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:19,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 00:01:19,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2022-07-14 00:01:19,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2022-07-14 00:01:19,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:19,662 INFO L134 CoverageAnalysis]: Checked inductivity of 2786 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2764 trivial. 0 not checked. [2022-07-14 00:01:19,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:01:19,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707043772] [2022-07-14 00:01:19,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707043772] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:01:19,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:01:19,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 00:01:19,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969715982] [2022-07-14 00:01:19,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:01:19,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 00:01:19,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:01:19,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 00:01:19,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-07-14 00:01:19,664 INFO L87 Difference]: Start difference. First operand 3636 states and 5129 transitions. Second operand has 10 states, 10 states have (on average 20.6) internal successors, (206), 3 states have internal predecessors, (206), 2 states have call successors, (64), 9 states have call predecessors, (64), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2022-07-14 00:01:24,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:01:24,529 INFO L93 Difference]: Finished difference Result 7202 states and 10433 transitions. [2022-07-14 00:01:24,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 00:01:24,530 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 20.6) internal successors, (206), 3 states have internal predecessors, (206), 2 states have call successors, (64), 9 states have call predecessors, (64), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) Word has length 486 [2022-07-14 00:01:24,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:01:24,548 INFO L225 Difference]: With dead ends: 7202 [2022-07-14 00:01:24,548 INFO L226 Difference]: Without dead ends: 4055 [2022-07-14 00:01:24,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2022-07-14 00:01:24,559 INFO L413 NwaCegarLoop]: 1442 mSDtfsCounter, 1184 mSDsluCounter, 4307 mSDsCounter, 0 mSdLazyCounter, 4080 mSolverCounterSat, 1172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1253 SdHoareTripleChecker+Valid, 5749 SdHoareTripleChecker+Invalid, 5252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1172 IncrementalHoareTripleChecker+Valid, 4080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-07-14 00:01:24,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1253 Valid, 5749 Invalid, 5252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1172 Valid, 4080 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-07-14 00:01:24,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4055 states. [2022-07-14 00:01:24,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4055 to 3638. [2022-07-14 00:01:24,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3638 states, 2657 states have (on average 1.3409860745201354) internal successors, (3563), 2684 states have internal predecessors, (3563), 745 states have call successors, (745), 217 states have call predecessors, (745), 235 states have return successors, (823), 757 states have call predecessors, (823), 744 states have call successors, (823) [2022-07-14 00:01:24,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3638 states to 3638 states and 5131 transitions. [2022-07-14 00:01:24,719 INFO L78 Accepts]: Start accepts. Automaton has 3638 states and 5131 transitions. Word has length 486 [2022-07-14 00:01:24,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:01:24,720 INFO L495 AbstractCegarLoop]: Abstraction has 3638 states and 5131 transitions. [2022-07-14 00:01:24,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 20.6) internal successors, (206), 3 states have internal predecessors, (206), 2 states have call successors, (64), 9 states have call predecessors, (64), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2022-07-14 00:01:24,720 INFO L276 IsEmpty]: Start isEmpty. Operand 3638 states and 5131 transitions. [2022-07-14 00:01:24,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2022-07-14 00:01:24,728 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:01:24,728 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:01:24,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-14 00:01:24,729 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:01:24,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:01:24,729 INFO L85 PathProgramCache]: Analyzing trace with hash 100467016, now seen corresponding path program 1 times [2022-07-14 00:01:24,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:01:24,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529044897] [2022-07-14 00:01:24,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:01:24,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:01:24,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:24,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:01:24,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:24,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:01:24,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:24,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:01:24,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:24,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:01:24,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:24,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:01:24,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:24,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:01:24,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:24,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:01:24,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:24,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:01:24,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:24,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:01:24,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:24,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:01:24,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:24,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:01:24,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 00:01:25,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 00:01:25,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 00:01:25,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:01:25,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-14 00:01:25,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 00:01:25,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 00:01:25,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-14 00:01:25,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 00:01:25,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 00:01:25,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-14 00:01:25,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 00:01:25,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-14 00:01:25,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-14 00:01:25,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-14 00:01:25,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-14 00:01:25,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-14 00:01:25,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-14 00:01:25,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-14 00:01:25,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-14 00:01:25,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-14 00:01:25,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-14 00:01:25,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-14 00:01:25,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-14 00:01:25,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-14 00:01:25,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-14 00:01:25,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-14 00:01:25,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-14 00:01:25,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:01:25,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-07-14 00:01:25,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:25,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:25,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:01:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-07-14 00:01:25,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-07-14 00:01:25,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-07-14 00:01:25,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2022-07-14 00:01:25,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:25,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-07-14 00:01:25,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2022-07-14 00:01:25,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:25,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2022-07-14 00:01:25,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-07-14 00:01:25,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-07-14 00:01:25,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2022-07-14 00:01:25,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2022-07-14 00:01:25,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2022-07-14 00:01:25,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-07-14 00:01:25,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:25,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2022-07-14 00:01:25,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:25,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 00:01:25,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2022-07-14 00:01:25,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2022-07-14 00:01:25,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:25,626 INFO L134 CoverageAnalysis]: Checked inductivity of 2786 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 2754 trivial. 0 not checked. [2022-07-14 00:01:25,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:01:25,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529044897] [2022-07-14 00:01:25,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529044897] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:01:25,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:01:25,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 00:01:25,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674799524] [2022-07-14 00:01:25,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:01:25,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 00:01:25,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:01:25,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 00:01:25,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-07-14 00:01:25,628 INFO L87 Difference]: Start difference. First operand 3638 states and 5131 transitions. Second operand has 12 states, 12 states have (on average 17.333333333333332) internal successors, (208), 4 states have internal predecessors, (208), 3 states have call successors, (64), 9 states have call predecessors, (64), 3 states have return successors, (63), 4 states have call predecessors, (63), 3 states have call successors, (63) [2022-07-14 00:01:31,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:01:31,265 INFO L93 Difference]: Finished difference Result 7201 states and 10431 transitions. [2022-07-14 00:01:31,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 00:01:31,266 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 17.333333333333332) internal successors, (208), 4 states have internal predecessors, (208), 3 states have call successors, (64), 9 states have call predecessors, (64), 3 states have return successors, (63), 4 states have call predecessors, (63), 3 states have call successors, (63) Word has length 486 [2022-07-14 00:01:31,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:01:31,315 INFO L225 Difference]: With dead ends: 7201 [2022-07-14 00:01:31,316 INFO L226 Difference]: Without dead ends: 4052 [2022-07-14 00:01:31,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2022-07-14 00:01:31,336 INFO L413 NwaCegarLoop]: 1434 mSDtfsCounter, 1502 mSDsluCounter, 4876 mSDsCounter, 0 mSdLazyCounter, 4469 mSolverCounterSat, 1570 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1571 SdHoareTripleChecker+Valid, 6310 SdHoareTripleChecker+Invalid, 6039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1570 IncrementalHoareTripleChecker+Valid, 4469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-07-14 00:01:31,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1571 Valid, 6310 Invalid, 6039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1570 Valid, 4469 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-07-14 00:01:31,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4052 states. [2022-07-14 00:01:31,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4052 to 3643. [2022-07-14 00:01:31,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3643 states, 2661 states have (on average 1.3404735062006765) internal successors, (3567), 2687 states have internal predecessors, (3567), 746 states have call successors, (746), 217 states have call predecessors, (746), 235 states have return successors, (824), 759 states have call predecessors, (824), 745 states have call successors, (824) [2022-07-14 00:01:31,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3643 states to 3643 states and 5137 transitions. [2022-07-14 00:01:31,687 INFO L78 Accepts]: Start accepts. Automaton has 3643 states and 5137 transitions. Word has length 486 [2022-07-14 00:01:31,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:01:31,688 INFO L495 AbstractCegarLoop]: Abstraction has 3643 states and 5137 transitions. [2022-07-14 00:01:31,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 17.333333333333332) internal successors, (208), 4 states have internal predecessors, (208), 3 states have call successors, (64), 9 states have call predecessors, (64), 3 states have return successors, (63), 4 states have call predecessors, (63), 3 states have call successors, (63) [2022-07-14 00:01:31,689 INFO L276 IsEmpty]: Start isEmpty. Operand 3643 states and 5137 transitions. [2022-07-14 00:01:31,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2022-07-14 00:01:31,715 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:01:31,716 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:01:31,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-14 00:01:31,716 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:01:31,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:01:31,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1967867468, now seen corresponding path program 2 times [2022-07-14 00:01:31,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:01:31,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490689271] [2022-07-14 00:01:31,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:01:31,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:01:31,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:01:32,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:01:32,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:01:32,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:01:32,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:01:32,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:01:32,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:01:32,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:01:32,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:01:32,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:01:32,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:01:32,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 00:01:32,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 00:01:32,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 00:01:32,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:01:32,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-14 00:01:32,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 00:01:32,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 00:01:32,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-14 00:01:32,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 00:01:32,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 00:01:32,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-14 00:01:32,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 00:01:32,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-14 00:01:32,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-14 00:01:32,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-14 00:01:32,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-14 00:01:32,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-14 00:01:32,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-14 00:01:32,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-14 00:01:32,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-14 00:01:32,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-14 00:01:32,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-14 00:01:32,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-14 00:01:32,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-14 00:01:32,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-14 00:01:32,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-14 00:01:32,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-14 00:01:32,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-14 00:01:32,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:01:32,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-07-14 00:01:32,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:32,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:32,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:01:32,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-07-14 00:01:32,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-07-14 00:01:32,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-07-14 00:01:32,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2022-07-14 00:01:32,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:32,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-07-14 00:01:32,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2022-07-14 00:01:32,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:32,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2022-07-14 00:01:32,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-07-14 00:01:32,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-07-14 00:01:32,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2022-07-14 00:01:32,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2022-07-14 00:01:32,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2022-07-14 00:01:32,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-07-14 00:01:32,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:32,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2022-07-14 00:01:32,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:32,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:01:32,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:01:32,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-07-14 00:01:32,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2022-07-14 00:01:32,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:32,848 INFO L134 CoverageAnalysis]: Checked inductivity of 2798 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 2766 trivial. 0 not checked. [2022-07-14 00:01:32,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:01:32,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490689271] [2022-07-14 00:01:32,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490689271] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:01:32,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [764838587] [2022-07-14 00:01:32,849 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 00:01:32,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:01:32,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:01:32,865 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) [2022-07-14 00:01:32,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-14 00:01:34,279 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-14 00:01:34,279 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 00:01:34,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 4599 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 00:01:34,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:01:34,391 INFO L134 CoverageAnalysis]: Checked inductivity of 2798 backedges. 1248 proven. 0 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2022-07-14 00:01:34,391 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:01:34,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [764838587] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:01:34,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:01:34,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [14] total 16 [2022-07-14 00:01:34,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892526147] [2022-07-14 00:01:34,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:01:34,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 00:01:34,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:01:34,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 00:01:34,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-07-14 00:01:34,396 INFO L87 Difference]: Start difference. First operand 3643 states and 5137 transitions. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 2 states have call successors, (64), 2 states have call predecessors, (64), 3 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2022-07-14 00:01:34,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:01:34,553 INFO L93 Difference]: Finished difference Result 7238 states and 10222 transitions. [2022-07-14 00:01:34,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 00:01:34,555 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 2 states have call successors, (64), 2 states have call predecessors, (64), 3 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) Word has length 492 [2022-07-14 00:01:34,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:01:34,596 INFO L225 Difference]: With dead ends: 7238 [2022-07-14 00:01:34,596 INFO L226 Difference]: Without dead ends: 3658 [2022-07-14 00:01:34,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 631 GetRequests, 616 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2022-07-14 00:01:34,619 INFO L413 NwaCegarLoop]: 1585 mSDtfsCounter, 2 mSDsluCounter, 3166 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4751 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 00:01:34,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4751 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 00:01:34,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3658 states. [2022-07-14 00:01:34,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3658 to 3652. [2022-07-14 00:01:34,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3652 states, 2667 states have (on average 1.3408323959505062) internal successors, (3576), 2696 states have internal predecessors, (3576), 746 states have call successors, (746), 217 states have call predecessors, (746), 238 states have return successors, (827), 759 states have call predecessors, (827), 745 states have call successors, (827) [2022-07-14 00:01:34,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3652 states to 3652 states and 5149 transitions. [2022-07-14 00:01:34,919 INFO L78 Accepts]: Start accepts. Automaton has 3652 states and 5149 transitions. Word has length 492 [2022-07-14 00:01:34,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:01:34,928 INFO L495 AbstractCegarLoop]: Abstraction has 3652 states and 5149 transitions. [2022-07-14 00:01:34,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 2 states have call successors, (64), 2 states have call predecessors, (64), 3 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2022-07-14 00:01:34,929 INFO L276 IsEmpty]: Start isEmpty. Operand 3652 states and 5149 transitions. [2022-07-14 00:01:34,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2022-07-14 00:01:34,944 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:01:34,944 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:01:34,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-14 00:01:35,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:01:35,164 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:01:35,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:01:35,164 INFO L85 PathProgramCache]: Analyzing trace with hash -552781394, now seen corresponding path program 1 times [2022-07-14 00:01:35,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:01:35,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018199612] [2022-07-14 00:01:35,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:01:35,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:01:35,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:01:35,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:01:35,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:01:35,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:01:35,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:01:35,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:01:35,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:01:35,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:01:35,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:01:35,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:01:35,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:01:35,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 00:01:35,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 00:01:35,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 00:01:35,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:01:35,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-14 00:01:35,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 00:01:35,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 00:01:35,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-14 00:01:35,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 00:01:35,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 00:01:35,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-14 00:01:35,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 00:01:35,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-14 00:01:35,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-14 00:01:35,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-14 00:01:35,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-14 00:01:35,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 00:01:35,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-14 00:01:35,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-14 00:01:35,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-14 00:01:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-14 00:01:35,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-14 00:01:35,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-14 00:01:35,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-07-14 00:01:35,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-07-14 00:01:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-14 00:01:35,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-07-14 00:01:35,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-07-14 00:01:35,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:01:35,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-14 00:01:35,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:35,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:35,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:01:35,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-07-14 00:01:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2022-07-14 00:01:35,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-07-14 00:01:35,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-07-14 00:01:35,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:35,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2022-07-14 00:01:35,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-07-14 00:01:35,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:35,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:35,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:36,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-07-14 00:01:36,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:36,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2022-07-14 00:01:36,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:36,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-07-14 00:01:36,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:36,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-07-14 00:01:36,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:36,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-07-14 00:01:36,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:36,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-07-14 00:01:36,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:36,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-07-14 00:01:36,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:36,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:36,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:36,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2022-07-14 00:01:36,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:36,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:36,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:36,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:01:36,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:36,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:01:36,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:36,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2022-07-14 00:01:36,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:36,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 465 [2022-07-14 00:01:36,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:36,234 INFO L134 CoverageAnalysis]: Checked inductivity of 2799 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 2767 trivial. 0 not checked. [2022-07-14 00:01:36,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:01:36,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018199612] [2022-07-14 00:01:36,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018199612] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:01:36,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412149603] [2022-07-14 00:01:36,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:01:36,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:01:36,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:01:36,240 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) [2022-07-14 00:01:36,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-14 00:01:37,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:37,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 4614 conjuncts, 19 conjunts are in the unsatisfiable core [2022-07-14 00:01:37,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:01:37,756 INFO L134 CoverageAnalysis]: Checked inductivity of 2799 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 2733 trivial. 0 not checked. [2022-07-14 00:01:37,756 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:01:37,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1412149603] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:01:37,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:01:37,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2022-07-14 00:01:37,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286321903] [2022-07-14 00:01:37,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:01:37,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:01:37,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:01:37,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:01:37,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2022-07-14 00:01:37,758 INFO L87 Difference]: Start difference. First operand 3652 states and 5149 transitions. Second operand has 6 states, 5 states have (on average 42.8) internal successors, (214), 5 states have internal predecessors, (214), 3 states have call successors, (65), 2 states have call predecessors, (65), 3 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2022-07-14 00:01:38,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:01:38,294 INFO L93 Difference]: Finished difference Result 7644 states and 10929 transitions. [2022-07-14 00:01:38,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 00:01:38,294 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 42.8) internal successors, (214), 5 states have internal predecessors, (214), 3 states have call successors, (65), 2 states have call predecessors, (65), 3 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) Word has length 493 [2022-07-14 00:01:38,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:01:38,306 INFO L225 Difference]: With dead ends: 7644 [2022-07-14 00:01:38,306 INFO L226 Difference]: Without dead ends: 4481 [2022-07-14 00:01:38,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 632 GetRequests, 615 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-07-14 00:01:38,321 INFO L413 NwaCegarLoop]: 1967 mSDtfsCounter, 495 mSDsluCounter, 7248 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 9215 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 00:01:38,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 9215 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 00:01:38,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4481 states. [2022-07-14 00:01:38,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4481 to 3652. [2022-07-14 00:01:38,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3652 states, 2667 states have (on average 1.3400824896887888) internal successors, (3574), 2696 states have internal predecessors, (3574), 746 states have call successors, (746), 217 states have call predecessors, (746), 238 states have return successors, (827), 759 states have call predecessors, (827), 745 states have call successors, (827) [2022-07-14 00:01:38,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3652 states to 3652 states and 5147 transitions. [2022-07-14 00:01:38,592 INFO L78 Accepts]: Start accepts. Automaton has 3652 states and 5147 transitions. Word has length 493 [2022-07-14 00:01:38,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:01:38,593 INFO L495 AbstractCegarLoop]: Abstraction has 3652 states and 5147 transitions. [2022-07-14 00:01:38,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 42.8) internal successors, (214), 5 states have internal predecessors, (214), 3 states have call successors, (65), 2 states have call predecessors, (65), 3 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2022-07-14 00:01:38,594 INFO L276 IsEmpty]: Start isEmpty. Operand 3652 states and 5147 transitions. [2022-07-14 00:01:38,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2022-07-14 00:01:38,602 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:01:38,602 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:01:38,656 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-14 00:01:38,831 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 [2022-07-14 00:01:38,832 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:01:38,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:01:38,832 INFO L85 PathProgramCache]: Analyzing trace with hash 114600496, now seen corresponding path program 1 times [2022-07-14 00:01:38,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:01:38,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671196376] [2022-07-14 00:01:38,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:01:38,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:01:39,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:01:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:01:39,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:01:39,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:01:39,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:01:39,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:01:39,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:01:39,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:01:39,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:01:39,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:01:39,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:01:39,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 00:01:39,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 00:01:39,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 00:01:39,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:01:39,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-14 00:01:39,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 00:01:39,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 00:01:39,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-14 00:01:39,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 00:01:39,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 00:01:39,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-14 00:01:39,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 00:01:39,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-14 00:01:39,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-14 00:01:39,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-14 00:01:39,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-14 00:01:39,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 00:01:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-14 00:01:39,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-14 00:01:39,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-14 00:01:39,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-14 00:01:39,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-14 00:01:39,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-14 00:01:39,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-07-14 00:01:39,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-07-14 00:01:39,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-14 00:01:39,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-07-14 00:01:39,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-07-14 00:01:39,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:01:39,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-14 00:01:39,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:39,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:39,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:01:39,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-07-14 00:01:39,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2022-07-14 00:01:39,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-07-14 00:01:39,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-07-14 00:01:39,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:39,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2022-07-14 00:01:39,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-07-14 00:01:39,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:39,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-07-14 00:01:39,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2022-07-14 00:01:39,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-07-14 00:01:39,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-07-14 00:01:39,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-07-14 00:01:39,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-07-14 00:01:39,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-07-14 00:01:39,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:39,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2022-07-14 00:01:39,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:39,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:01:39,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:01:39,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2022-07-14 00:01:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 465 [2022-07-14 00:01:39,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:39,763 INFO L134 CoverageAnalysis]: Checked inductivity of 2799 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 2767 trivial. 0 not checked. [2022-07-14 00:01:39,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:01:39,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671196376] [2022-07-14 00:01:39,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671196376] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:01:39,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027343501] [2022-07-14 00:01:39,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:01:39,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:01:39,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:01:39,765 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) [2022-07-14 00:01:39,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-14 00:01:41,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:41,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 4615 conjuncts, 56 conjunts are in the unsatisfiable core [2022-07-14 00:01:41,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:01:41,789 INFO L134 CoverageAnalysis]: Checked inductivity of 2799 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 2763 trivial. 0 not checked. [2022-07-14 00:01:41,789 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:01:41,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2027343501] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:01:41,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:01:41,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [14] total 23 [2022-07-14 00:01:41,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464471595] [2022-07-14 00:01:41,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:01:41,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 00:01:41,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:01:41,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 00:01:41,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2022-07-14 00:01:41,792 INFO L87 Difference]: Start difference. First operand 3652 states and 5147 transitions. Second operand has 11 states, 11 states have (on average 19.09090909090909) internal successors, (210), 9 states have internal predecessors, (210), 4 states have call successors, (65), 2 states have call predecessors, (65), 4 states have return successors, (64), 6 states have call predecessors, (64), 4 states have call successors, (64) [2022-07-14 00:01:43,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:01:43,433 INFO L93 Difference]: Finished difference Result 8056 states and 11567 transitions. [2022-07-14 00:01:43,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-14 00:01:43,434 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 19.09090909090909) internal successors, (210), 9 states have internal predecessors, (210), 4 states have call successors, (65), 2 states have call predecessors, (65), 4 states have return successors, (64), 6 states have call predecessors, (64), 4 states have call successors, (64) Word has length 493 [2022-07-14 00:01:43,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:01:43,447 INFO L225 Difference]: With dead ends: 8056 [2022-07-14 00:01:43,447 INFO L226 Difference]: Without dead ends: 4893 [2022-07-14 00:01:43,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 642 GetRequests, 611 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=101, Invalid=955, Unknown=0, NotChecked=0, Total=1056 [2022-07-14 00:01:43,467 INFO L413 NwaCegarLoop]: 3148 mSDtfsCounter, 3072 mSDsluCounter, 27284 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3184 SdHoareTripleChecker+Valid, 30432 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:01:43,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3184 Valid, 30432 Invalid, 1361 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [248 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-14 00:01:43,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4893 states. [2022-07-14 00:01:43,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4893 to 3652. [2022-07-14 00:01:43,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3652 states, 2667 states have (on average 1.3397075365579303) internal successors, (3573), 2696 states have internal predecessors, (3573), 746 states have call successors, (746), 217 states have call predecessors, (746), 238 states have return successors, (827), 759 states have call predecessors, (827), 745 states have call successors, (827) [2022-07-14 00:01:43,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3652 states to 3652 states and 5146 transitions. [2022-07-14 00:01:43,663 INFO L78 Accepts]: Start accepts. Automaton has 3652 states and 5146 transitions. Word has length 493 [2022-07-14 00:01:43,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:01:43,664 INFO L495 AbstractCegarLoop]: Abstraction has 3652 states and 5146 transitions. [2022-07-14 00:01:43,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 19.09090909090909) internal successors, (210), 9 states have internal predecessors, (210), 4 states have call successors, (65), 2 states have call predecessors, (65), 4 states have return successors, (64), 6 states have call predecessors, (64), 4 states have call successors, (64) [2022-07-14 00:01:43,664 INFO L276 IsEmpty]: Start isEmpty. Operand 3652 states and 5146 transitions. [2022-07-14 00:01:43,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2022-07-14 00:01:43,671 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:01:43,671 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 7, 7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:01:43,700 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-14 00:01:43,884 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 [2022-07-14 00:01:43,884 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:01:43,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:01:43,885 INFO L85 PathProgramCache]: Analyzing trace with hash -2126322149, now seen corresponding path program 1 times [2022-07-14 00:01:43,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:01:43,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318900917] [2022-07-14 00:01:43,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:01:43,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:01:44,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:01:44,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:01:44,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:01:44,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:01:44,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:01:44,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:01:44,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:01:44,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:01:44,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:01:44,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:01:44,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:01:44,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 00:01:44,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 00:01:44,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 00:01:44,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:01:44,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-14 00:01:44,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 00:01:44,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 00:01:44,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-14 00:01:44,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 00:01:44,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 00:01:44,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-14 00:01:44,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 00:01:44,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-14 00:01:44,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-14 00:01:44,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-14 00:01:44,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-14 00:01:44,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 00:01:44,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-14 00:01:44,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-14 00:01:44,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-14 00:01:44,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-14 00:01:44,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-14 00:01:44,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-14 00:01:44,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-07-14 00:01:44,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-07-14 00:01:44,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-14 00:01:44,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-07-14 00:01:44,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-07-14 00:01:44,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:01:44,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-14 00:01:44,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:44,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:44,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:01:44,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-07-14 00:01:44,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2022-07-14 00:01:44,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-07-14 00:01:44,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-07-14 00:01:44,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:44,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2022-07-14 00:01:44,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-07-14 00:01:44,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:44,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-07-14 00:01:44,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2022-07-14 00:01:44,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-07-14 00:01:44,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-07-14 00:01:44,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-07-14 00:01:44,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-07-14 00:01:44,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-07-14 00:01:44,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:44,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2022-07-14 00:01:44,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:44,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:01:44,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:01:44,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-07-14 00:01:44,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-07-14 00:01:44,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:01:44,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 477 [2022-07-14 00:01:44,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2022-07-14 00:01:44,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 493 [2022-07-14 00:01:44,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:44,417 INFO L134 CoverageAnalysis]: Checked inductivity of 2829 backedges. 30 proven. 4 refuted. 0 times theorem prover too weak. 2795 trivial. 0 not checked. [2022-07-14 00:01:44,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:01:44,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318900917] [2022-07-14 00:01:44,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318900917] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:01:44,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430744666] [2022-07-14 00:01:44,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:01:44,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:01:44,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:01:44,424 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) [2022-07-14 00:01:44,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-14 00:01:46,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:01:46,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 4874 conjuncts, 127 conjunts are in the unsatisfiable core [2022-07-14 00:01:46,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:01:46,492 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-14 00:01:46,872 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-14 00:01:46,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-14 00:01:46,998 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-07-14 00:01:47,006 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-14 00:01:47,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-14 00:01:47,098 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-07-14 00:01:47,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-14 00:01:47,107 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-07-14 00:01:47,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-14 00:01:47,212 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-07-14 00:01:48,177 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-07-14 00:01:48,184 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-07-14 00:01:48,246 INFO L134 CoverageAnalysis]: Checked inductivity of 2829 backedges. 110 proven. 6 refuted. 0 times theorem prover too weak. 2713 trivial. 0 not checked. [2022-07-14 00:01:48,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:01:48,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [430744666] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:01:48,366 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 00:01:48,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 24] total 36 [2022-07-14 00:01:48,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191822562] [2022-07-14 00:01:48,366 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 00:01:48,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-07-14 00:01:48,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:01:48,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-07-14 00:01:48,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=1206, Unknown=0, NotChecked=0, Total=1332 [2022-07-14 00:01:48,369 INFO L87 Difference]: Start difference. First operand 3652 states and 5146 transitions. Second operand has 36 states, 35 states have (on average 9.6) internal successors, (336), 22 states have internal predecessors, (336), 8 states have call successors, (135), 12 states have call predecessors, (135), 13 states have return successors, (95), 14 states have call predecessors, (95), 8 states have call successors, (95) [2022-07-14 00:02:00,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:02:00,051 INFO L93 Difference]: Finished difference Result 7471 states and 10790 transitions. [2022-07-14 00:02:00,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-07-14 00:02:00,051 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 9.6) internal successors, (336), 22 states have internal predecessors, (336), 8 states have call successors, (135), 12 states have call predecessors, (135), 13 states have return successors, (95), 14 states have call predecessors, (95), 8 states have call successors, (95) Word has length 521 [2022-07-14 00:02:00,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:02:00,080 INFO L225 Difference]: With dead ends: 7471 [2022-07-14 00:02:00,081 INFO L226 Difference]: Without dead ends: 4308 [2022-07-14 00:02:00,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 776 GetRequests, 697 SyntacticMatches, 18 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1271 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=437, Invalid=3469, Unknown=0, NotChecked=0, Total=3906 [2022-07-14 00:02:00,106 INFO L413 NwaCegarLoop]: 1491 mSDtfsCounter, 2260 mSDsluCounter, 12760 mSDsCounter, 0 mSdLazyCounter, 11198 mSolverCounterSat, 2285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2270 SdHoareTripleChecker+Valid, 14251 SdHoareTripleChecker+Invalid, 16751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2285 IncrementalHoareTripleChecker+Valid, 11198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3268 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-07-14 00:02:00,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2270 Valid, 14251 Invalid, 16751 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2285 Valid, 11198 Invalid, 0 Unknown, 3268 Unchecked, 10.5s Time] [2022-07-14 00:02:00,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4308 states. [2022-07-14 00:02:00,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4308 to 3761. [2022-07-14 00:02:00,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3761 states, 2747 states have (on average 1.33636694575901) internal successors, (3671), 2772 states have internal predecessors, (3671), 764 states have call successors, (764), 227 states have call predecessors, (764), 249 states have return successors, (817), 783 states have call predecessors, (817), 763 states have call successors, (817) [2022-07-14 00:02:00,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3761 states to 3761 states and 5252 transitions. [2022-07-14 00:02:00,350 INFO L78 Accepts]: Start accepts. Automaton has 3761 states and 5252 transitions. Word has length 521 [2022-07-14 00:02:00,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:02:00,350 INFO L495 AbstractCegarLoop]: Abstraction has 3761 states and 5252 transitions. [2022-07-14 00:02:00,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 9.6) internal successors, (336), 22 states have internal predecessors, (336), 8 states have call successors, (135), 12 states have call predecessors, (135), 13 states have return successors, (95), 14 states have call predecessors, (95), 8 states have call successors, (95) [2022-07-14 00:02:00,351 INFO L276 IsEmpty]: Start isEmpty. Operand 3761 states and 5252 transitions. [2022-07-14 00:02:00,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2022-07-14 00:02:00,360 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:02:00,361 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 7, 7, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:02:00,403 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-14 00:02:00,571 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 [2022-07-14 00:02:00,572 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:02:00,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:02:00,572 INFO L85 PathProgramCache]: Analyzing trace with hash 467890335, now seen corresponding path program 2 times [2022-07-14 00:02:00,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:02:00,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346353902] [2022-07-14 00:02:00,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:02:00,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:02:01,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:02:01,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:02:01,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:02:01,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:02:01,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:02:01,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:02:01,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:02:01,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:02:01,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:02:01,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:02:01,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:02:01,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 00:02:01,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 00:02:01,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 00:02:01,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:02:01,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-14 00:02:01,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 00:02:01,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 00:02:01,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-14 00:02:01,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 00:02:01,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 00:02:01,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-14 00:02:01,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 00:02:01,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-14 00:02:01,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-14 00:02:01,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-14 00:02:01,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-14 00:02:01,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 00:02:01,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-14 00:02:01,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-14 00:02:01,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-14 00:02:01,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-14 00:02:01,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-14 00:02:01,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-14 00:02:01,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-07-14 00:02:01,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-07-14 00:02:01,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-14 00:02:01,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:01,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-07-14 00:02:01,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:02,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-07-14 00:02:02,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:02,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:02:02,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:02,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-14 00:02:02,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:02,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:02:02,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:02,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:02:02,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:02,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:02:02,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:02,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-07-14 00:02:02,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:02,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2022-07-14 00:02:02,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:02,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-07-14 00:02:02,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:02,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-07-14 00:02:02,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:02,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:02:02,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:02,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2022-07-14 00:02:02,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:02,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-07-14 00:02:02,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:02,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:02:02,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:02,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-07-14 00:02:02,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:02,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2022-07-14 00:02:02,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:02,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-07-14 00:02:02,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:02,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-07-14 00:02:02,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:02,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-07-14 00:02:02,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:02,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-07-14 00:02:02,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:02,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-07-14 00:02:02,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:02,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:02:02,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:02,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:02:02,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:02,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2022-07-14 00:02:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:02,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:02:02,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:02,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:02:02,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:02,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:02:02,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:02,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 461 [2022-07-14 00:02:02,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:02,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 469 [2022-07-14 00:02:02,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:02,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:02:02,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:02,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2022-07-14 00:02:02,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:02,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2022-07-14 00:02:02,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:02,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 499 [2022-07-14 00:02:02,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:02,326 INFO L134 CoverageAnalysis]: Checked inductivity of 2847 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2846 trivial. 0 not checked. [2022-07-14 00:02:02,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:02:02,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346353902] [2022-07-14 00:02:02,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346353902] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:02:02,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391413625] [2022-07-14 00:02:02,328 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 00:02:02,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:02:02,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:02:02,339 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) [2022-07-14 00:02:02,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-14 00:02:12,260 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-14 00:02:12,261 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 00:02:12,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 4900 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-14 00:02:12,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:02:12,389 INFO L134 CoverageAnalysis]: Checked inductivity of 2847 backedges. 1248 proven. 1 refuted. 0 times theorem prover too weak. 1598 trivial. 0 not checked. [2022-07-14 00:02:12,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:02:12,693 INFO L134 CoverageAnalysis]: Checked inductivity of 2847 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2846 trivial. 0 not checked. [2022-07-14 00:02:12,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391413625] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:02:12,694 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 00:02:12,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5] total 18 [2022-07-14 00:02:12,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287419229] [2022-07-14 00:02:12,694 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 00:02:12,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-14 00:02:12,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:02:12,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-14 00:02:12,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-07-14 00:02:12,696 INFO L87 Difference]: Start difference. First operand 3761 states and 5252 transitions. Second operand has 18 states, 18 states have (on average 15.61111111111111) internal successors, (281), 10 states have internal predecessors, (281), 2 states have call successors, (164), 10 states have call predecessors, (164), 5 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2022-07-14 00:02:18,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:02:18,253 INFO L93 Difference]: Finished difference Result 7981 states and 11473 transitions. [2022-07-14 00:02:18,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-14 00:02:18,253 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 15.61111111111111) internal successors, (281), 10 states have internal predecessors, (281), 2 states have call successors, (164), 10 states have call predecessors, (164), 5 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) Word has length 527 [2022-07-14 00:02:18,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:02:18,281 INFO L225 Difference]: With dead ends: 7981 [2022-07-14 00:02:18,281 INFO L226 Difference]: Without dead ends: 4283 [2022-07-14 00:02:18,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1222 GetRequests, 1187 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=305, Invalid=955, Unknown=0, NotChecked=0, Total=1260 [2022-07-14 00:02:18,304 INFO L413 NwaCegarLoop]: 1430 mSDtfsCounter, 2138 mSDsluCounter, 4718 mSDsCounter, 0 mSdLazyCounter, 3997 mSolverCounterSat, 2177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2148 SdHoareTripleChecker+Valid, 6148 SdHoareTripleChecker+Invalid, 6174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2177 IncrementalHoareTripleChecker+Valid, 3997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-07-14 00:02:18,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2148 Valid, 6148 Invalid, 6174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2177 Valid, 3997 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-07-14 00:02:18,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4283 states. [2022-07-14 00:02:18,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4283 to 3778. [2022-07-14 00:02:18,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3778 states, 2764 states have (on average 1.3397250361794502) internal successors, (3703), 2787 states have internal predecessors, (3703), 764 states have call successors, (764), 229 states have call predecessors, (764), 249 states have return successors, (817), 783 states have call predecessors, (817), 763 states have call successors, (817) [2022-07-14 00:02:18,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3778 states to 3778 states and 5284 transitions. [2022-07-14 00:02:18,704 INFO L78 Accepts]: Start accepts. Automaton has 3778 states and 5284 transitions. Word has length 527 [2022-07-14 00:02:18,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:02:18,706 INFO L495 AbstractCegarLoop]: Abstraction has 3778 states and 5284 transitions. [2022-07-14 00:02:18,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 15.61111111111111) internal successors, (281), 10 states have internal predecessors, (281), 2 states have call successors, (164), 10 states have call predecessors, (164), 5 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2022-07-14 00:02:18,706 INFO L276 IsEmpty]: Start isEmpty. Operand 3778 states and 5284 transitions. [2022-07-14 00:02:18,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2022-07-14 00:02:18,713 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:02:18,713 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:02:18,777 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-14 00:02:18,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:02:18,947 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:02:18,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:02:18,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1034255933, now seen corresponding path program 3 times [2022-07-14 00:02:18,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:02:18,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103141659] [2022-07-14 00:02:18,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:02:18,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:02:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:19,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:02:19,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:19,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:02:19,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:19,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:02:19,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:19,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:02:19,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:19,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:02:19,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:19,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:02:19,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:19,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:02:19,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:19,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:02:19,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:19,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:02:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:19,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:02:19,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:19,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:02:19,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:19,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 00:02:19,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:19,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 00:02:19,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:19,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 00:02:19,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:19,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:02:19,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:19,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-14 00:02:19,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:19,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 00:02:20,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 00:02:20,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-14 00:02:20,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 00:02:20,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 00:02:20,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-14 00:02:20,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 00:02:20,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-14 00:02:20,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-14 00:02:20,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-14 00:02:20,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-14 00:02:20,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-14 00:02:20,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-14 00:02:20,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-14 00:02:20,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-14 00:02:20,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-14 00:02:20,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-14 00:02:20,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-07-14 00:02:20,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-14 00:02:20,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-07-14 00:02:20,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-14 00:02:20,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-14 00:02:20,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-07-14 00:02:20,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:02:20,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-07-14 00:02:20,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:02:20,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:02:20,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:02:20,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2022-07-14 00:02:20,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-07-14 00:02:20,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-07-14 00:02:20,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-14 00:02:20,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:02:20,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-07-14 00:02:20,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2022-07-14 00:02:20,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:02:20,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2022-07-14 00:02:20,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-07-14 00:02:20,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-07-14 00:02:20,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2022-07-14 00:02:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-07-14 00:02:20,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2022-07-14 00:02:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2022-07-14 00:02:20,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:02:20,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:02:20,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2022-07-14 00:02:20,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:02:20,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:02:20,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:02:20,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2022-07-14 00:02:20,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2022-07-14 00:02:20,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:02:20,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2022-07-14 00:02:20,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 493 [2022-07-14 00:02:20,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2022-07-14 00:02:20,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:20,488 INFO L134 CoverageAnalysis]: Checked inductivity of 2856 backedges. 38 proven. 2 refuted. 0 times theorem prover too weak. 2816 trivial. 0 not checked. [2022-07-14 00:02:20,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:02:20,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103141659] [2022-07-14 00:02:20,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103141659] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:02:20,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114076800] [2022-07-14 00:02:20,488 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-14 00:02:20,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:02:20,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:02:20,490 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:02:20,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-14 00:02:21,934 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-07-14 00:02:21,934 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 00:02:21,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 2352 conjuncts, 82 conjunts are in the unsatisfiable core [2022-07-14 00:02:21,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:02:22,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-14 00:02:22,317 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 102 [2022-07-14 00:02:22,332 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-07-14 00:02:22,332 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 121 treesize of output 102 [2022-07-14 00:02:22,362 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 87 [2022-07-14 00:02:22,367 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 63 [2022-07-14 00:02:22,682 INFO L134 CoverageAnalysis]: Checked inductivity of 2856 backedges. 66 proven. 2 refuted. 0 times theorem prover too weak. 2788 trivial. 0 not checked. [2022-07-14 00:02:22,682 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:02:23,333 INFO L134 CoverageAnalysis]: Checked inductivity of 2856 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2834 trivial. 0 not checked. [2022-07-14 00:02:23,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2114076800] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 00:02:23,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-07-14 00:02:23,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [21, 15] total 29 [2022-07-14 00:02:23,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482494306] [2022-07-14 00:02:23,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:02:23,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 00:02:23,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:02:23,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 00:02:23,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=712, Unknown=0, NotChecked=0, Total=812 [2022-07-14 00:02:23,335 INFO L87 Difference]: Start difference. First operand 3778 states and 5284 transitions. Second operand has 9 states, 8 states have (on average 27.5) internal successors, (220), 8 states have internal predecessors, (220), 5 states have call successors, (67), 3 states have call predecessors, (67), 2 states have return successors, (66), 3 states have call predecessors, (66), 4 states have call successors, (66) [2022-07-14 00:02:31,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:02:31,780 INFO L93 Difference]: Finished difference Result 8715 states and 12207 transitions. [2022-07-14 00:02:31,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 00:02:31,783 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 27.5) internal successors, (220), 8 states have internal predecessors, (220), 5 states have call successors, (67), 3 states have call predecessors, (67), 2 states have return successors, (66), 3 states have call predecessors, (66), 4 states have call successors, (66) Word has length 530 [2022-07-14 00:02:31,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:02:31,811 INFO L225 Difference]: With dead ends: 8715 [2022-07-14 00:02:31,820 INFO L226 Difference]: Without dead ends: 5420 [2022-07-14 00:02:31,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1216 GetRequests, 1181 SyntacticMatches, 6 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=116, Invalid=814, Unknown=0, NotChecked=0, Total=930 [2022-07-14 00:02:31,841 INFO L413 NwaCegarLoop]: 1757 mSDtfsCounter, 5240 mSDsluCounter, 4113 mSDsCounter, 0 mSdLazyCounter, 4300 mSolverCounterSat, 1907 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5348 SdHoareTripleChecker+Valid, 5870 SdHoareTripleChecker+Invalid, 6207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1907 IncrementalHoareTripleChecker+Valid, 4300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-07-14 00:02:31,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5348 Valid, 5870 Invalid, 6207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1907 Valid, 4300 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2022-07-14 00:02:31,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5420 states. [2022-07-14 00:02:32,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5420 to 5400. [2022-07-14 00:02:32,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5400 states, 3951 states have (on average 1.3391546443938243) internal successors, (5291), 3985 states have internal predecessors, (5291), 1093 states have call successors, (1093), 330 states have call predecessors, (1093), 355 states have return successors, (1166), 1117 states have call predecessors, (1166), 1092 states have call successors, (1166) [2022-07-14 00:02:32,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5400 states to 5400 states and 7550 transitions. [2022-07-14 00:02:32,373 INFO L78 Accepts]: Start accepts. Automaton has 5400 states and 7550 transitions. Word has length 530 [2022-07-14 00:02:32,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:02:32,377 INFO L495 AbstractCegarLoop]: Abstraction has 5400 states and 7550 transitions. [2022-07-14 00:02:32,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 27.5) internal successors, (220), 8 states have internal predecessors, (220), 5 states have call successors, (67), 3 states have call predecessors, (67), 2 states have return successors, (66), 3 states have call predecessors, (66), 4 states have call successors, (66) [2022-07-14 00:02:32,377 INFO L276 IsEmpty]: Start isEmpty. Operand 5400 states and 7550 transitions. [2022-07-14 00:02:32,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2022-07-14 00:02:32,401 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:02:32,402 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:02:32,451 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-14 00:02:32,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-07-14 00:02:32,622 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:02:32,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:02:32,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1299136705, now seen corresponding path program 1 times [2022-07-14 00:02:32,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:02:32,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459522482] [2022-07-14 00:02:32,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:02:32,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:02:33,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:02:34,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:02:34,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:02:34,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:02:34,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:02:34,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:02:34,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:02:34,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:02:34,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:02:34,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:02:34,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:02:34,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 00:02:34,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 00:02:34,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 00:02:34,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:02:34,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-14 00:02:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 00:02:34,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 00:02:34,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-14 00:02:34,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 00:02:34,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 00:02:34,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-14 00:02:34,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 00:02:34,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-14 00:02:34,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-14 00:02:34,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-14 00:02:34,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-14 00:02:34,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-14 00:02:34,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-14 00:02:34,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-14 00:02:34,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-14 00:02:34,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-14 00:02:34,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-14 00:02:34,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-07-14 00:02:34,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-14 00:02:34,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-07-14 00:02:34,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-14 00:02:34,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-14 00:02:34,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-07-14 00:02:34,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:02:34,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-07-14 00:02:34,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:02:34,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:02:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:02:34,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2022-07-14 00:02:34,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-07-14 00:02:34,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-07-14 00:02:34,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-14 00:02:34,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:02:34,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-07-14 00:02:34,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2022-07-14 00:02:34,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:02:34,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2022-07-14 00:02:34,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-07-14 00:02:34,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-07-14 00:02:34,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2022-07-14 00:02:34,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-07-14 00:02:34,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 413 [2022-07-14 00:02:34,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2022-07-14 00:02:34,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:02:34,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:02:34,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:34,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2022-07-14 00:02:34,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:35,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:02:35,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:35,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:02:35,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:35,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:02:35,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:35,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2022-07-14 00:02:35,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:35,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2022-07-14 00:02:35,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:35,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:02:35,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:35,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2022-07-14 00:02:35,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:35,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 493 [2022-07-14 00:02:35,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:35,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2022-07-14 00:02:35,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:35,146 INFO L134 CoverageAnalysis]: Checked inductivity of 2856 backedges. 38 proven. 16 refuted. 0 times theorem prover too weak. 2802 trivial. 0 not checked. [2022-07-14 00:02:35,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:02:35,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459522482] [2022-07-14 00:02:35,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459522482] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:02:35,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057885519] [2022-07-14 00:02:35,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:02:35,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:02:35,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:02:35,163 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:02:35,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-14 00:02:37,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:02:37,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 4938 conjuncts, 142 conjunts are in the unsatisfiable core [2022-07-14 00:02:37,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:02:38,642 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-07-14 00:02:38,650 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-07-14 00:02:38,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-14 00:02:38,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-14 00:02:38,797 INFO L356 Elim1Store]: treesize reduction 70, result has 26.3 percent of original size [2022-07-14 00:02:38,797 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 161 treesize of output 116 [2022-07-14 00:02:38,893 INFO L356 Elim1Store]: treesize reduction 238, result has 19.3 percent of original size [2022-07-14 00:02:38,894 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 147 treesize of output 165 [2022-07-14 00:02:38,940 INFO L356 Elim1Store]: treesize reduction 24, result has 55.6 percent of original size [2022-07-14 00:02:38,940 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 150 treesize of output 141 [2022-07-14 00:02:38,960 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-14 00:02:38,960 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 79 [2022-07-14 00:02:38,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-14 00:02:38,992 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2022-07-14 00:02:39,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-14 00:02:39,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-14 00:02:39,024 INFO L356 Elim1Store]: treesize reduction 6, result has 83.3 percent of original size [2022-07-14 00:02:39,024 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 82 [2022-07-14 00:02:39,106 INFO L356 Elim1Store]: treesize reduction 24, result has 55.6 percent of original size [2022-07-14 00:02:39,106 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 111 treesize of output 110 [2022-07-14 00:02:39,119 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 43 treesize of output 21 [2022-07-14 00:02:39,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-14 00:02:39,139 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 31 [2022-07-14 00:02:39,332 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 12 [2022-07-14 00:02:39,430 INFO L134 CoverageAnalysis]: Checked inductivity of 2856 backedges. 70 proven. 8 refuted. 0 times theorem prover too weak. 2778 trivial. 0 not checked. [2022-07-14 00:02:39,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:03:03,541 INFO L134 CoverageAnalysis]: Checked inductivity of 2856 backedges. 42 proven. 16 refuted. 0 times theorem prover too weak. 2798 trivial. 0 not checked. [2022-07-14 00:03:03,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057885519] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:03:03,542 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 00:03:03,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 23] total 58 [2022-07-14 00:03:03,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744621900] [2022-07-14 00:03:03,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 00:03:03,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-07-14 00:03:03,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:03:03,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-07-14 00:03:03,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=3108, Unknown=0, NotChecked=0, Total=3306 [2022-07-14 00:03:03,546 INFO L87 Difference]: Start difference. First operand 5400 states and 7550 transitions. Second operand has 58 states, 58 states have (on average 6.396551724137931) internal successors, (371), 37 states have internal predecessors, (371), 14 states have call successors, (152), 11 states have call predecessors, (152), 14 states have return successors, (110), 27 states have call predecessors, (110), 14 states have call successors, (110) [2022-07-14 00:04:38,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:04:38,727 INFO L93 Difference]: Finished difference Result 27657 states and 43231 transitions. [2022-07-14 00:04:38,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-07-14 00:04:38,728 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 6.396551724137931) internal successors, (371), 37 states have internal predecessors, (371), 14 states have call successors, (152), 11 states have call predecessors, (152), 14 states have return successors, (110), 27 states have call predecessors, (110), 14 states have call successors, (110) Word has length 530 [2022-07-14 00:04:38,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:04:38,784 INFO L225 Difference]: With dead ends: 27657 [2022-07-14 00:04:38,784 INFO L226 Difference]: Without dead ends: 22734 [2022-07-14 00:04:38,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1339 GetRequests, 1193 SyntacticMatches, 9 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5043 ImplicationChecksByTransitivity, 17.5s TimeCoverageRelationStatistics Valid=1612, Invalid=17568, Unknown=2, NotChecked=0, Total=19182 [2022-07-14 00:04:38,800 INFO L413 NwaCegarLoop]: 4205 mSDtfsCounter, 8228 mSDsluCounter, 110079 mSDsCounter, 0 mSdLazyCounter, 86545 mSolverCounterSat, 7117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 65.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8545 SdHoareTripleChecker+Valid, 114284 SdHoareTripleChecker+Invalid, 100051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 7117 IncrementalHoareTripleChecker+Valid, 86545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6389 IncrementalHoareTripleChecker+Unchecked, 75.8s IncrementalHoareTripleChecker+Time [2022-07-14 00:04:38,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8545 Valid, 114284 Invalid, 100051 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [7117 Valid, 86545 Invalid, 0 Unknown, 6389 Unchecked, 75.8s Time] [2022-07-14 00:04:38,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22734 states.