./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_ncm.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_ncm.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 e5d904d16bfadec9650eee3419425295e6c215eb7ede78bce460c631a5749a1f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 00:53:13,955 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 00:53:13,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 00:53:13,988 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 00:53:13,989 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 00:53:13,992 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 00:53:13,994 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 00:53:13,998 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 00:53:14,000 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 00:53:14,001 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 00:53:14,001 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 00:53:14,003 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 00:53:14,003 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 00:53:14,008 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 00:53:14,010 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 00:53:14,011 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 00:53:14,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 00:53:14,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 00:53:14,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 00:53:14,018 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 00:53:14,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 00:53:14,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 00:53:14,026 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 00:53:14,026 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 00:53:14,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 00:53:14,029 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 00:53:14,030 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 00:53:14,030 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 00:53:14,031 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 00:53:14,032 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 00:53:14,032 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 00:53:14,033 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 00:53:14,034 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 00:53:14,035 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 00:53:14,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 00:53:14,036 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 00:53:14,036 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 00:53:14,036 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 00:53:14,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 00:53:14,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 00:53:14,038 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 00:53:14,038 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 00:53:14,059 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 00:53:14,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 00:53:14,059 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 00:53:14,060 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 00:53:14,060 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 00:53:14,060 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 00:53:14,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 00:53:14,061 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 00:53:14,061 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 00:53:14,061 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 00:53:14,061 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 00:53:14,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 00:53:14,062 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 00:53:14,062 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 00:53:14,062 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 00:53:14,062 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 00:53:14,062 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 00:53:14,062 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 00:53:14,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 00:53:14,063 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 00:53:14,063 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 00:53:14,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 00:53:14,063 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 00:53:14,063 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 00:53:14,064 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 00:53:14,064 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 00:53:14,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 00:53:14,064 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 00:53:14,064 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 00:53:14,064 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 00:53:14,064 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 00:53:14,065 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e5d904d16bfadec9650eee3419425295e6c215eb7ede78bce460c631a5749a1f [2021-11-17 00:53:14,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 00:53:14,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 00:53:14,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 00:53:14,259 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 00:53:14,260 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 00:53:14,261 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_ncm.ko-entry_point.cil.out.i [2021-11-17 00:53:14,336 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7e9bbe36/3c301d12d8f44b39bbd3e02d9192429f/FLAGcfe7a11ff [2021-11-17 00:53:14,910 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 00:53:14,910 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_ncm.ko-entry_point.cil.out.i [2021-11-17 00:53:14,958 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7e9bbe36/3c301d12d8f44b39bbd3e02d9192429f/FLAGcfe7a11ff [2021-11-17 00:53:15,342 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7e9bbe36/3c301d12d8f44b39bbd3e02d9192429f [2021-11-17 00:53:15,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 00:53:15,347 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 00:53:15,348 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 00:53:15,348 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 00:53:15,351 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 00:53:15,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 12:53:15" (1/1) ... [2021-11-17 00:53:15,352 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f061f6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:53:15, skipping insertion in model container [2021-11-17 00:53:15,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 12:53:15" (1/1) ... [2021-11-17 00:53:15,357 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 00:53:15,463 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 00:53:16,137 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_ncm.ko-entry_point.cil.out.i[167966,167979] [2021-11-17 00:53:16,900 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 00:53:16,956 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 00:53:17,078 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_ncm.ko-entry_point.cil.out.i[167966,167979] [2021-11-17 00:53:17,257 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 00:53:17,373 INFO L208 MainTranslator]: Completed translation [2021-11-17 00:53:17,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:53:17 WrapperNode [2021-11-17 00:53:17,375 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 00:53:17,376 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 00:53:17,377 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 00:53:17,377 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 00:53:17,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:53:17" (1/1) ... [2021-11-17 00:53:17,457 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:53:17" (1/1) ... [2021-11-17 00:53:17,584 INFO L137 Inliner]: procedures = 229, calls = 2513, calls flagged for inlining = 116, calls inlined = 110, statements flattened = 6277 [2021-11-17 00:53:17,585 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 00:53:17,586 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 00:53:17,586 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 00:53:17,586 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 00:53:17,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:53:17" (1/1) ... [2021-11-17 00:53:17,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:53:17" (1/1) ... [2021-11-17 00:53:17,611 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:53:17" (1/1) ... [2021-11-17 00:53:17,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:53:17" (1/1) ... [2021-11-17 00:53:17,736 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:53:17" (1/1) ... [2021-11-17 00:53:17,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:53:17" (1/1) ... [2021-11-17 00:53:17,787 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:53:17" (1/1) ... [2021-11-17 00:53:17,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 00:53:17,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 00:53:17,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 00:53:17,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 00:53:17,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:53:17" (1/1) ... [2021-11-17 00:53:17,827 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 00:53:17,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 00:53:17,847 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-17 00:53:17,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-17 00:53:17,875 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-17 00:53:17,876 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-17 00:53:17,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 00:53:17,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 00:53:17,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 00:53:17,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 00:53:17,877 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2021-11-17 00:53:17,877 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2021-11-17 00:53:17,877 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_rx_fixup [2021-11-17 00:53:17,877 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_rx_fixup [2021-11-17 00:53:17,877 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_tx_fixup [2021-11-17 00:53:17,877 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_tx_fixup [2021-11-17 00:53:17,877 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_find_endpoints [2021-11-17 00:53:17,877 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_find_endpoints [2021-11-17 00:53:17,878 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_flags [2021-11-17 00:53:17,878 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_flags [2021-11-17 00:53:17,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 00:53:17,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 00:53:17,878 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-17 00:53:17,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2021-11-17 00:53:17,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2021-11-17 00:53:17,878 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_bind [2021-11-17 00:53:17,879 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_bind [2021-11-17 00:53:17,879 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_update_rxtx_max [2021-11-17 00:53:17,879 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_update_rxtx_max [2021-11-17 00:53:17,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-17 00:53:17,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-17 00:53:17,879 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2021-11-17 00:53:17,879 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2021-11-17 00:53:17,879 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-17 00:53:17,880 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-17 00:53:17,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 00:53:17,880 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 00:53:17,880 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-17 00:53:17,880 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-17 00:53:17,880 INFO L130 BoogieDeclarations]: Found specification of procedure usb_maxpacket [2021-11-17 00:53:17,880 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_maxpacket [2021-11-17 00:53:17,881 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_free [2021-11-17 00:53:17,881 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_free [2021-11-17 00:53:17,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 00:53:17,881 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_eth_hlen [2021-11-17 00:53:17,881 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_eth_hlen [2021-11-17 00:53:17,881 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-17 00:53:17,882 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-17 00:53:17,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 00:53:17,882 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_link_change [2021-11-17 00:53:17,882 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_link_change [2021-11-17 00:53:17,882 INFO L130 BoogieDeclarations]: Found specification of procedure hrtimer_active [2021-11-17 00:53:17,882 INFO L138 BoogieDeclarations]: Found implementation of procedure hrtimer_active [2021-11-17 00:53:17,883 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2021-11-17 00:53:17,883 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2021-11-17 00:53:17,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-11-17 00:53:17,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 00:53:17,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 00:53:17,884 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-17 00:53:17,884 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-17 00:53:17,884 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-17 00:53:17,885 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-17 00:53:17,885 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-17 00:53:17,885 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-17 00:53:17,885 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-17 00:53:17,885 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-17 00:53:17,886 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-17 00:53:17,886 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-17 00:53:17,886 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_manage_power [2021-11-17 00:53:17,886 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_manage_power [2021-11-17 00:53:17,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 00:53:17,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-17 00:53:17,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-17 00:53:17,886 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2021-11-17 00:53:17,887 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2021-11-17 00:53:17,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 00:53:17,887 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_check_rx_max [2021-11-17 00:53:17,887 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_check_rx_max [2021-11-17 00:53:17,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 00:53:17,888 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2021-11-17 00:53:17,888 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2021-11-17 00:53:17,888 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_release_interface [2021-11-17 00:53:17,888 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_release_interface [2021-11-17 00:53:17,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 00:53:17,888 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 00:53:17,888 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd [2021-11-17 00:53:17,889 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_write_cmd [2021-11-17 00:53:17,889 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-17 00:53:17,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-17 00:53:17,889 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_lock_bh [2021-11-17 00:53:17,889 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_lock_bh [2021-11-17 00:53:17,889 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_unlock_bh [2021-11-17 00:53:17,889 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_unlock_bh [2021-11-17 00:53:17,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 00:53:17,890 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_status [2021-11-17 00:53:17,890 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_status [2021-11-17 00:53:17,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 00:53:17,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 00:53:17,891 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd [2021-11-17 00:53:17,891 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_read_cmd [2021-11-17 00:53:17,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 00:53:17,891 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-17 00:53:17,891 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-17 00:53:17,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 00:53:17,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 00:53:17,892 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-17 00:53:17,892 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_speed_change [2021-11-17 00:53:17,892 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_speed_change [2021-11-17 00:53:17,893 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_align_tail [2021-11-17 00:53:17,893 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_align_tail [2021-11-17 00:53:17,893 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2021-11-17 00:53:17,893 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2021-11-17 00:53:17,893 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_start_xmit [2021-11-17 00:53:17,893 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_start_xmit [2021-11-17 00:53:17,893 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_check_tx_max [2021-11-17 00:53:17,894 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_check_tx_max [2021-11-17 00:53:17,894 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-17 00:53:17,894 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-17 00:53:17,894 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-17 00:53:17,894 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-17 00:53:17,894 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-17 00:53:17,895 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-17 00:53:17,895 INFO L130 BoogieDeclarations]: Found specification of procedure driver_of [2021-11-17 00:53:17,897 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_of [2021-11-17 00:53:17,897 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_tx_timeout_start [2021-11-17 00:53:17,897 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_tx_timeout_start [2021-11-17 00:53:17,897 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-17 00:53:17,899 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-17 00:53:17,899 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_unbind [2021-11-17 00:53:17,899 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_unbind [2021-11-17 00:53:17,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 00:53:17,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 00:53:17,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 00:53:17,904 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-17 00:53:17,904 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-17 00:53:18,597 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 00:53:18,599 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 00:53:18,784 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 00:54:43,022 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 00:54:43,043 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 00:54:43,044 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-17 00:54:43,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 12:54:43 BoogieIcfgContainer [2021-11-17 00:54:43,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 00:54:43,056 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 00:54:43,056 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 00:54:43,059 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 00:54:43,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 12:53:15" (1/3) ... [2021-11-17 00:54:43,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c31370a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 12:54:43, skipping insertion in model container [2021-11-17 00:54:43,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:53:17" (2/3) ... [2021-11-17 00:54:43,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c31370a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 12:54:43, skipping insertion in model container [2021-11-17 00:54:43,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 12:54:43" (3/3) ... [2021-11-17 00:54:43,061 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cdc_ncm.ko-entry_point.cil.out.i [2021-11-17 00:54:43,064 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 00:54:43,065 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-17 00:54:43,111 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 00:54:43,117 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-17 00:54:43,117 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-17 00:54:43,161 INFO L276 IsEmpty]: Start isEmpty. Operand has 1465 states, 1111 states have (on average 1.441944194419442) internal successors, (1602), 1141 states have internal predecessors, (1602), 297 states have call successors, (297), 56 states have call predecessors, (297), 55 states have return successors, (276), 275 states have call predecessors, (276), 276 states have call successors, (276) [2021-11-17 00:54:43,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2021-11-17 00:54:43,180 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 00:54:43,181 INFO L514 BasicCegarLoop]: trace histogram [47, 47, 47, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 00:54:43,182 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 00:54:43,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 00:54:43,185 INFO L85 PathProgramCache]: Analyzing trace with hash -994766168, now seen corresponding path program 1 times [2021-11-17 00:54:43,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 00:54:43,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985236365] [2021-11-17 00:54:43,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 00:54:43,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 00:54:43,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:54:44,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:54:44,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:54:44,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 00:54:44,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 00:54:44,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 00:54:44,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 00:54:44,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 00:54:44,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 00:54:44,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 00:54:44,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 00:54:44,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-17 00:54:44,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 00:54:44,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 00:54:44,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-17 00:54:44,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 00:54:44,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 00:54:44,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 00:54:44,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 00:54:44,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 00:54:44,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 00:54:44,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 00:54:44,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 00:54:44,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 00:54:44,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 00:54:44,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-17 00:54:44,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 00:54:44,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 00:54:44,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 00:54:44,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-17 00:54:44,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 00:54:44,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-17 00:54:44,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-17 00:54:44,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-17 00:54:44,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 00:54:44,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 00:54:44,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-17 00:54:44,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 00:54:44,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-17 00:54:44,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 00:54:44,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 00:54:44,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 00:54:44,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 00:54:44,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-17 00:54:44,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 00:54:44,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 00:54:44,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 00:54:44,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-17 00:54:44,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 00:54:44,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-17 00:54:44,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-17 00:54:44,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:54:44,792 INFO L134 CoverageAnalysis]: Checked inductivity of 4348 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4348 trivial. 0 not checked. [2021-11-17 00:54:44,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 00:54:44,793 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985236365] [2021-11-17 00:54:44,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985236365] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 00:54:44,794 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 00:54:44,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 00:54:44,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5225152] [2021-11-17 00:54:44,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 00:54:44,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 00:54:44,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 00:54:44,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 00:54:44,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 00:54:44,832 INFO L87 Difference]: Start difference. First operand has 1465 states, 1111 states have (on average 1.441944194419442) internal successors, (1602), 1141 states have internal predecessors, (1602), 297 states have call successors, (297), 56 states have call predecessors, (297), 55 states have return successors, (276), 275 states have call predecessors, (276), 276 states have call successors, (276) Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2021-11-17 00:54:46,921 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:54:49,082 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:54:51,115 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:54:58,200 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:55:00,405 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:55:02,512 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:55:06,767 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:55:08,319 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:55:14,955 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:55:17,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 00:55:17,606 INFO L93 Difference]: Finished difference Result 4673 states and 7236 transitions. [2021-11-17 00:55:17,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 00:55:17,610 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) Word has length 329 [2021-11-17 00:55:17,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 00:55:17,656 INFO L225 Difference]: With dead ends: 4673 [2021-11-17 00:55:17,662 INFO L226 Difference]: Without dead ends: 3163 [2021-11-17 00:55:17,678 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 00:55:17,685 INFO L933 BasicCegarLoop]: 2244 mSDtfsCounter, 3652 mSDsluCounter, 3872 mSDsCounter, 0 mSdLazyCounter, 2305 mSolverCounterSat, 1386 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3839 SdHoareTripleChecker+Valid, 6116 SdHoareTripleChecker+Invalid, 3699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1386 IncrementalHoareTripleChecker+Valid, 2305 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.0s IncrementalHoareTripleChecker+Time [2021-11-17 00:55:17,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3839 Valid, 6116 Invalid, 3699 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1386 Valid, 2305 Invalid, 8 Unknown, 0 Unchecked, 32.0s Time] [2021-11-17 00:55:17,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3163 states. [2021-11-17 00:55:17,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3163 to 2705. [2021-11-17 00:55:17,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2705 states, 2116 states have (on average 1.4371455576559546) internal successors, (3041), 2130 states have internal predecessors, (3041), 480 states have call successors, (480), 109 states have call predecessors, (480), 108 states have return successors, (479), 477 states have call predecessors, (479), 479 states have call successors, (479) [2021-11-17 00:55:17,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2705 states to 2705 states and 4000 transitions. [2021-11-17 00:55:17,895 INFO L78 Accepts]: Start accepts. Automaton has 2705 states and 4000 transitions. Word has length 329 [2021-11-17 00:55:17,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 00:55:17,899 INFO L470 AbstractCegarLoop]: Abstraction has 2705 states and 4000 transitions. [2021-11-17 00:55:17,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2021-11-17 00:55:17,899 INFO L276 IsEmpty]: Start isEmpty. Operand 2705 states and 4000 transitions. [2021-11-17 00:55:17,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2021-11-17 00:55:17,907 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 00:55:17,907 INFO L514 BasicCegarLoop]: trace histogram [48, 48, 48, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 00:55:17,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 00:55:17,908 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 00:55:17,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 00:55:17,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1399094830, now seen corresponding path program 1 times [2021-11-17 00:55:17,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 00:55:17,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775394870] [2021-11-17 00:55:17,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 00:55:17,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 00:55:18,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:55:18,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:55:18,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:55:18,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 00:55:18,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 00:55:18,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 00:55:18,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 00:55:18,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 00:55:18,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 00:55:18,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 00:55:18,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 00:55:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-17 00:55:18,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 00:55:18,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 00:55:18,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-17 00:55:18,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 00:55:18,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 00:55:18,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 00:55:18,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 00:55:18,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 00:55:18,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 00:55:18,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 00:55:18,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 00:55:18,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 00:55:18,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 00:55:18,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-17 00:55:18,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 00:55:18,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 00:55:18,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 00:55:18,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-17 00:55:18,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 00:55:18,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-17 00:55:18,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-17 00:55:18,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-17 00:55:18,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 00:55:18,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 00:55:18,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-17 00:55:18,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 00:55:18,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-17 00:55:18,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 00:55:18,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 00:55:18,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 00:55:18,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 00:55:18,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-17 00:55:18,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 00:55:18,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 00:55:18,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 00:55:18,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-17 00:55:18,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 00:55:18,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-17 00:55:18,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-17 00:55:18,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-11-17 00:55:18,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:55:18,960 INFO L134 CoverageAnalysis]: Checked inductivity of 4536 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4536 trivial. 0 not checked. [2021-11-17 00:55:18,960 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 00:55:18,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775394870] [2021-11-17 00:55:18,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775394870] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 00:55:18,961 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 00:55:18,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 00:55:18,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656798433] [2021-11-17 00:55:18,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 00:55:18,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 00:55:18,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 00:55:18,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 00:55:18,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-17 00:55:18,964 INFO L87 Difference]: Start difference. First operand 2705 states and 4000 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-17 00:55:21,032 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:55:23,134 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:55:33,032 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:55:35,155 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:55:37,266 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:55:39,725 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:55:41,845 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:55:44,109 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:55:46,232 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:55:48,350 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:55:52,926 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:55:55,988 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:55:58,031 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:56:00,193 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:56:03,182 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.99s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:56:05,321 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:56:07,434 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:56:09,562 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:56:13,359 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:56:19,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 00:56:19,586 INFO L93 Difference]: Finished difference Result 8816 states and 13331 transitions. [2021-11-17 00:56:19,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 00:56:19,587 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 338 [2021-11-17 00:56:19,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 00:56:19,622 INFO L225 Difference]: With dead ends: 8816 [2021-11-17 00:56:19,622 INFO L226 Difference]: Without dead ends: 6211 [2021-11-17 00:56:19,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-11-17 00:56:19,638 INFO L933 BasicCegarLoop]: 2318 mSDtfsCounter, 3789 mSDsluCounter, 7917 mSDsCounter, 0 mSdLazyCounter, 3386 mSolverCounterSat, 1298 mSolverCounterUnsat, 19 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4034 SdHoareTripleChecker+Valid, 10235 SdHoareTripleChecker+Invalid, 4703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1298 IncrementalHoareTripleChecker+Valid, 3386 IncrementalHoareTripleChecker+Invalid, 19 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.8s IncrementalHoareTripleChecker+Time [2021-11-17 00:56:19,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4034 Valid, 10235 Invalid, 4703 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1298 Valid, 3386 Invalid, 19 Unknown, 0 Unchecked, 59.8s Time] [2021-11-17 00:56:19,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6211 states. [2021-11-17 00:56:19,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6211 to 5361. [2021-11-17 00:56:19,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5361 states, 4222 states have (on average 1.4414969208905732) internal successors, (6086), 4258 states have internal predecessors, (6086), 914 states have call successors, (914), 217 states have call predecessors, (914), 224 states have return successors, (969), 911 states have call predecessors, (969), 913 states have call successors, (969) [2021-11-17 00:56:19,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5361 states to 5361 states and 7969 transitions. [2021-11-17 00:56:19,823 INFO L78 Accepts]: Start accepts. Automaton has 5361 states and 7969 transitions. Word has length 338 [2021-11-17 00:56:19,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 00:56:19,825 INFO L470 AbstractCegarLoop]: Abstraction has 5361 states and 7969 transitions. [2021-11-17 00:56:19,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-17 00:56:19,825 INFO L276 IsEmpty]: Start isEmpty. Operand 5361 states and 7969 transitions. [2021-11-17 00:56:19,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2021-11-17 00:56:19,837 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 00:56:19,839 INFO L514 BasicCegarLoop]: trace histogram [49, 49, 49, 4, 4, 4, 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] [2021-11-17 00:56:19,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 00:56:19,839 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 00:56:19,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 00:56:19,840 INFO L85 PathProgramCache]: Analyzing trace with hash -552953833, now seen corresponding path program 1 times [2021-11-17 00:56:19,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 00:56:19,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263379185] [2021-11-17 00:56:19,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 00:56:19,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 00:56:20,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:56:20,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:56:20,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:56:20,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 00:56:20,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 00:56:20,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 00:56:20,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 00:56:20,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 00:56:20,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 00:56:20,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 00:56:20,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 00:56:20,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-17 00:56:20,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 00:56:20,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 00:56:20,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-17 00:56:20,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 00:56:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 00:56:20,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 00:56:20,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 00:56:20,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 00:56:20,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 00:56:20,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 00:56:20,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 00:56:20,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 00:56:20,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 00:56:20,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-17 00:56:20,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 00:56:20,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 00:56:20,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 00:56:20,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-17 00:56:20,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 00:56:20,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-17 00:56:20,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-17 00:56:20,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-17 00:56:20,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 00:56:20,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 00:56:20,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-17 00:56:20,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 00:56:20,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-17 00:56:20,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 00:56:20,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 00:56:20,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 00:56:20,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 00:56:20,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-17 00:56:20,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 00:56:20,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 00:56:20,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 00:56:20,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-17 00:56:20,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 00:56:20,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-17 00:56:20,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:20,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-17 00:56:20,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:21,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-11-17 00:56:21,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:21,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:56:21,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:21,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 00:56:21,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:21,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:56:21,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:21,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 00:56:21,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:21,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2021-11-17 00:56:21,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:56:21,074 INFO L134 CoverageAnalysis]: Checked inductivity of 4736 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4728 trivial. 0 not checked. [2021-11-17 00:56:21,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 00:56:21,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263379185] [2021-11-17 00:56:21,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263379185] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 00:56:21,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 00:56:21,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 00:56:21,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706842229] [2021-11-17 00:56:21,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 00:56:21,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 00:56:21,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 00:56:21,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 00:56:21,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 00:56:21,078 INFO L87 Difference]: Start difference. First operand 5361 states and 7969 transitions. Second operand has 6 states, 6 states have (on average 23.0) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (58), 5 states have call predecessors, (58), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2021-11-17 00:56:23,147 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:56:25,379 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:56:31,858 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:56:34,026 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:56:36,480 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:56:40,017 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:56:42,065 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:56:49,047 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:56:51,354 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:56:53,511 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:56:56,595 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:56:58,733 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:57:00,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 00:57:00,526 INFO L93 Difference]: Finished difference Result 17333 states and 26062 transitions. [2021-11-17 00:57:00,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 00:57:00,526 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (58), 5 states have call predecessors, (58), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 406 [2021-11-17 00:57:00,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 00:57:00,591 INFO L225 Difference]: With dead ends: 17333 [2021-11-17 00:57:00,591 INFO L226 Difference]: Without dead ends: 12078 [2021-11-17 00:57:00,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 00:57:00,620 INFO L933 BasicCegarLoop]: 2167 mSDtfsCounter, 4436 mSDsluCounter, 3619 mSDsCounter, 0 mSdLazyCounter, 2311 mSolverCounterSat, 1837 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4691 SdHoareTripleChecker+Valid, 5786 SdHoareTripleChecker+Invalid, 4158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1837 IncrementalHoareTripleChecker+Valid, 2311 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.9s IncrementalHoareTripleChecker+Time [2021-11-17 00:57:00,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4691 Valid, 5786 Invalid, 4158 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1837 Valid, 2311 Invalid, 10 Unknown, 0 Unchecked, 38.9s Time] [2021-11-17 00:57:00,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12078 states. [2021-11-17 00:57:00,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12078 to 10365. [2021-11-17 00:57:01,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10365 states, 8214 states have (on average 1.4450937423910397) internal successors, (11870), 8288 states have internal predecessors, (11870), 1702 states have call successors, (1702), 433 states have call predecessors, (1702), 448 states have return successors, (1788), 1695 states have call predecessors, (1788), 1701 states have call successors, (1788) [2021-11-17 00:57:01,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10365 states to 10365 states and 15360 transitions. [2021-11-17 00:57:01,047 INFO L78 Accepts]: Start accepts. Automaton has 10365 states and 15360 transitions. Word has length 406 [2021-11-17 00:57:01,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 00:57:01,048 INFO L470 AbstractCegarLoop]: Abstraction has 10365 states and 15360 transitions. [2021-11-17 00:57:01,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (58), 5 states have call predecessors, (58), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2021-11-17 00:57:01,049 INFO L276 IsEmpty]: Start isEmpty. Operand 10365 states and 15360 transitions. [2021-11-17 00:57:01,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2021-11-17 00:57:01,058 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 00:57:01,059 INFO L514 BasicCegarLoop]: trace histogram [49, 49, 49, 4, 4, 4, 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] [2021-11-17 00:57:01,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 00:57:01,059 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 00:57:01,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 00:57:01,060 INFO L85 PathProgramCache]: Analyzing trace with hash -913167886, now seen corresponding path program 1 times [2021-11-17 00:57:01,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 00:57:01,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643227354] [2021-11-17 00:57:01,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 00:57:01,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 00:57:01,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:57:01,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:57:01,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:57:01,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 00:57:01,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 00:57:01,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 00:57:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 00:57:01,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 00:57:01,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 00:57:01,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 00:57:01,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 00:57:01,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-17 00:57:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 00:57:01,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 00:57:01,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-17 00:57:01,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 00:57:01,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 00:57:01,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 00:57:01,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 00:57:01,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 00:57:01,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 00:57:01,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 00:57:01,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 00:57:01,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 00:57:01,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 00:57:01,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-17 00:57:01,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 00:57:01,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 00:57:01,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 00:57:01,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-17 00:57:01,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 00:57:01,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-17 00:57:01,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-17 00:57:01,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-17 00:57:01,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 00:57:01,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 00:57:01,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-17 00:57:01,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 00:57:01,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-17 00:57:01,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 00:57:01,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 00:57:01,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 00:57:01,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 00:57:01,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-17 00:57:01,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 00:57:01,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 00:57:01,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 00:57:01,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-17 00:57:01,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 00:57:01,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-17 00:57:01,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-17 00:57:01,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-11-17 00:57:01,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:57:01,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 00:57:01,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:57:01,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 00:57:01,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-11-17 00:57:01,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:01,973 INFO L134 CoverageAnalysis]: Checked inductivity of 4736 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4728 trivial. 0 not checked. [2021-11-17 00:57:01,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 00:57:01,973 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643227354] [2021-11-17 00:57:01,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643227354] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 00:57:01,974 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 00:57:01,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 00:57:01,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165464891] [2021-11-17 00:57:01,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 00:57:01,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 00:57:01,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 00:57:01,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 00:57:01,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 00:57:01,976 INFO L87 Difference]: Start difference. First operand 10365 states and 15360 transitions. Second operand has 6 states, 6 states have (on average 22.0) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (58), 5 states have call predecessors, (58), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2021-11-17 00:57:04,050 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:57:10,488 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:57:12,601 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:57:14,930 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:57:17,184 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:57:21,124 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:57:27,890 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:57:30,075 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:57:32,263 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:57:34,587 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:57:37,376 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:57:39,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 00:57:39,033 INFO L93 Difference]: Finished difference Result 33913 states and 50733 transitions. [2021-11-17 00:57:39,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 00:57:39,034 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (58), 5 states have call predecessors, (58), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 400 [2021-11-17 00:57:39,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 00:57:39,139 INFO L225 Difference]: With dead ends: 33913 [2021-11-17 00:57:39,139 INFO L226 Difference]: Without dead ends: 23654 [2021-11-17 00:57:39,183 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 00:57:39,185 INFO L933 BasicCegarLoop]: 2287 mSDtfsCounter, 3713 mSDsluCounter, 3743 mSDsCounter, 0 mSdLazyCounter, 2596 mSolverCounterSat, 1302 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3973 SdHoareTripleChecker+Valid, 6030 SdHoareTripleChecker+Invalid, 3909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1302 IncrementalHoareTripleChecker+Valid, 2596 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.4s IncrementalHoareTripleChecker+Time [2021-11-17 00:57:39,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3973 Valid, 6030 Invalid, 3909 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1302 Valid, 2596 Invalid, 11 Unknown, 0 Unchecked, 36.4s Time] [2021-11-17 00:57:39,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23654 states. [2021-11-17 00:57:39,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23654 to 20241. [2021-11-17 00:57:39,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20241 states, 16096 states have (on average 1.445328031809145) internal successors, (23264), 16246 states have internal predecessors, (23264), 3248 states have call successors, (3248), 865 states have call predecessors, (3248), 896 states have return successors, (3393), 3233 states have call predecessors, (3393), 3247 states have call successors, (3393) [2021-11-17 00:57:39,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20241 states to 20241 states and 29905 transitions. [2021-11-17 00:57:39,937 INFO L78 Accepts]: Start accepts. Automaton has 20241 states and 29905 transitions. Word has length 400 [2021-11-17 00:57:39,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 00:57:39,938 INFO L470 AbstractCegarLoop]: Abstraction has 20241 states and 29905 transitions. [2021-11-17 00:57:39,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 3 states have internal predecessors, (132), 2 states have call successors, (58), 5 states have call predecessors, (58), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2021-11-17 00:57:39,938 INFO L276 IsEmpty]: Start isEmpty. Operand 20241 states and 29905 transitions. [2021-11-17 00:57:39,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2021-11-17 00:57:39,947 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 00:57:39,948 INFO L514 BasicCegarLoop]: trace histogram [49, 49, 49, 4, 4, 4, 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] [2021-11-17 00:57:39,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 00:57:39,948 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 00:57:39,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 00:57:39,948 INFO L85 PathProgramCache]: Analyzing trace with hash 688730240, now seen corresponding path program 1 times [2021-11-17 00:57:39,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 00:57:39,949 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639435269] [2021-11-17 00:57:39,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 00:57:39,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 00:57:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:57:40,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:57:40,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:57:40,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 00:57:40,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 00:57:40,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 00:57:40,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 00:57:40,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 00:57:40,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 00:57:40,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 00:57:40,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 00:57:40,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-17 00:57:40,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 00:57:40,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 00:57:40,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-17 00:57:40,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 00:57:40,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 00:57:40,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 00:57:40,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 00:57:40,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 00:57:40,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 00:57:40,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 00:57:40,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 00:57:40,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 00:57:40,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 00:57:40,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-17 00:57:40,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 00:57:40,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 00:57:40,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 00:57:40,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-17 00:57:40,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 00:57:40,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-17 00:57:40,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-17 00:57:40,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-17 00:57:40,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 00:57:40,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 00:57:40,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-17 00:57:40,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 00:57:40,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-17 00:57:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 00:57:40,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 00:57:40,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 00:57:40,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 00:57:40,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-17 00:57:40,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 00:57:40,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 00:57:40,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 00:57:40,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-17 00:57:40,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 00:57:40,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-17 00:57:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-17 00:57:40,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-11-17 00:57:40,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:57:40,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 00:57:40,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:57:40,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 00:57:40,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2021-11-17 00:57:40,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:57:40,812 INFO L134 CoverageAnalysis]: Checked inductivity of 4733 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4728 trivial. 0 not checked. [2021-11-17 00:57:40,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 00:57:40,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639435269] [2021-11-17 00:57:40,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639435269] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 00:57:40,813 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 00:57:40,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 00:57:40,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712421881] [2021-11-17 00:57:40,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 00:57:40,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 00:57:40,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 00:57:40,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 00:57:40,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 00:57:40,814 INFO L87 Difference]: Start difference. First operand 20241 states and 29905 transitions. Second operand has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (58), 5 states have call predecessors, (58), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2021-11-17 00:57:42,881 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:57:44,958 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:57:55,665 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:57:57,851 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:58:00,072 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:58:02,344 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:58:04,518 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:58:06,934 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:58:09,085 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:58:11,357 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:58:16,355 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:58:19,007 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:58:21,046 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:58:26,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 00:58:26,017 INFO L93 Difference]: Finished difference Result 63250 states and 94199 transitions. [2021-11-17 00:58:26,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 00:58:26,017 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (58), 5 states have call predecessors, (58), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 393 [2021-11-17 00:58:26,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 00:58:26,169 INFO L225 Difference]: With dead ends: 63250 [2021-11-17 00:58:26,170 INFO L226 Difference]: Without dead ends: 43115 [2021-11-17 00:58:26,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 00:58:26,224 INFO L933 BasicCegarLoop]: 3101 mSDtfsCounter, 3716 mSDsluCounter, 4488 mSDsCounter, 0 mSdLazyCounter, 2980 mSolverCounterSat, 1432 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3987 SdHoareTripleChecker+Valid, 7589 SdHoareTripleChecker+Invalid, 4424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1432 IncrementalHoareTripleChecker+Valid, 2980 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.0s IncrementalHoareTripleChecker+Time [2021-11-17 00:58:26,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3987 Valid, 7589 Invalid, 4424 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1432 Valid, 2980 Invalid, 12 Unknown, 0 Unchecked, 44.0s Time] [2021-11-17 00:58:26,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43115 states. [2021-11-17 00:58:27,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43115 to 37493. [2021-11-17 00:58:27,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37493 states, 29975 states have (on average 1.4454712260216847) internal successors, (43328), 30261 states have internal predecessors, (43328), 5836 states have call successors, (5836), 1614 states have call predecessors, (5836), 1681 states have return successors, (6163), 5807 states have call predecessors, (6163), 5835 states have call successors, (6163) [2021-11-17 00:58:27,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37493 states to 37493 states and 55327 transitions. [2021-11-17 00:58:27,396 INFO L78 Accepts]: Start accepts. Automaton has 37493 states and 55327 transitions. Word has length 393 [2021-11-17 00:58:27,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 00:58:27,399 INFO L470 AbstractCegarLoop]: Abstraction has 37493 states and 55327 transitions. [2021-11-17 00:58:27,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (58), 5 states have call predecessors, (58), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2021-11-17 00:58:27,399 INFO L276 IsEmpty]: Start isEmpty. Operand 37493 states and 55327 transitions. [2021-11-17 00:58:27,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2021-11-17 00:58:27,448 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 00:58:27,449 INFO L514 BasicCegarLoop]: trace histogram [68, 68, 68, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 00:58:27,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 00:58:27,450 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 00:58:27,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 00:58:27,450 INFO L85 PathProgramCache]: Analyzing trace with hash 991798494, now seen corresponding path program 1 times [2021-11-17 00:58:27,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 00:58:27,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7483411] [2021-11-17 00:58:27,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 00:58:27,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 00:58:27,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:27,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:58:27,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:27,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:58:27,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:27,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:58:27,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:27,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 00:58:27,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:27,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 00:58:27,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:27,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 00:58:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:27,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 00:58:27,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:27,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 00:58:27,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:27,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 00:58:27,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:27,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 00:58:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:27,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 00:58:27,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:27,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-17 00:58:27,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:27,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 00:58:27,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:27,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 00:58:27,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:27,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-17 00:58:27,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:27,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 00:58:27,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:27,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 00:58:27,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:27,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 00:58:27,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:27,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 00:58:27,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:27,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 00:58:27,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:27,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 00:58:27,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:27,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 00:58:27,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:27,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 00:58:27,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:27,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 00:58:27,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:27,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 00:58:27,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:27,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-17 00:58:27,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:27,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 00:58:28,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 00:58:28,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 00:58:28,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-17 00:58:28,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 00:58:28,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-17 00:58:28,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-17 00:58:28,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-17 00:58:28,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 00:58:28,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 00:58:28,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-17 00:58:28,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 00:58:28,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-17 00:58:28,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 00:58:28,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 00:58:28,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 00:58:28,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 00:58:28,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-17 00:58:28,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 00:58:28,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 00:58:28,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 00:58:28,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-17 00:58:28,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 00:58:28,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-17 00:58:28,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-17 00:58:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-11-17 00:58:28,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2021-11-17 00:58:28,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-11-17 00:58:28,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-11-17 00:58:28,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2021-11-17 00:58:28,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-11-17 00:58:28,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2021-11-17 00:58:28,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-11-17 00:58:28,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2021-11-17 00:58:28,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-11-17 00:58:28,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2021-11-17 00:58:28,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2021-11-17 00:58:28,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2021-11-17 00:58:28,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2021-11-17 00:58:28,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2021-11-17 00:58:28,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2021-11-17 00:58:28,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2021-11-17 00:58:28,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-17 00:58:28,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2021-11-17 00:58:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2021-11-17 00:58:28,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2021-11-17 00:58:28,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:58:28,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 00:58:28,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:58:28,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 00:58:28,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:58:28,648 INFO L134 CoverageAnalysis]: Checked inductivity of 9162 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 9136 trivial. 0 not checked. [2021-11-17 00:58:28,649 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 00:58:28,649 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7483411] [2021-11-17 00:58:28,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7483411] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 00:58:28,649 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 00:58:28,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 00:58:28,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381840205] [2021-11-17 00:58:28,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 00:58:28,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 00:58:28,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 00:58:28,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 00:58:28,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 00:58:28,652 INFO L87 Difference]: Start difference. First operand 37493 states and 55327 transitions. Second operand has 6 states, 6 states have (on average 30.0) internal successors, (180), 3 states have internal predecessors, (180), 3 states have call successors, (77), 5 states have call predecessors, (77), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2021-11-17 00:58:30,720 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:58:32,770 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:58:34,827 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:58:47,334 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:58:49,561 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:58:51,946 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:58:54,095 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:58:56,830 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:58:58,973 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:59:03,029 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:59:05,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 00:59:05,534 INFO L93 Difference]: Finished difference Result 102646 states and 152785 transitions. [2021-11-17 00:59:05,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 00:59:05,535 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.0) internal successors, (180), 3 states have internal predecessors, (180), 3 states have call successors, (77), 5 states have call predecessors, (77), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) Word has length 543 [2021-11-17 00:59:05,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 00:59:05,761 INFO L225 Difference]: With dead ends: 102646 [2021-11-17 00:59:05,761 INFO L226 Difference]: Without dead ends: 65263 [2021-11-17 00:59:05,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 00:59:05,864 INFO L933 BasicCegarLoop]: 2835 mSDtfsCounter, 3799 mSDsluCounter, 4412 mSDsCounter, 0 mSdLazyCounter, 2533 mSolverCounterSat, 1615 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4012 SdHoareTripleChecker+Valid, 7247 SdHoareTripleChecker+Invalid, 4158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1615 IncrementalHoareTripleChecker+Valid, 2533 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.5s IncrementalHoareTripleChecker+Time [2021-11-17 00:59:05,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4012 Valid, 7247 Invalid, 4158 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1615 Valid, 2533 Invalid, 10 Unknown, 0 Unchecked, 35.5s Time] [2021-11-17 00:59:05,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65263 states. [2021-11-17 00:59:07,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65263 to 56273. [2021-11-17 00:59:07,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56273 states, 45123 states have (on average 1.444052922013164) internal successors, (65160), 45597 states have internal predecessors, (65160), 8572 states have call successors, (8572), 2438 states have call predecessors, (8572), 2577 states have return successors, (9179), 8535 states have call predecessors, (9179), 8571 states have call successors, (9179) [2021-11-17 00:59:07,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56273 states to 56273 states and 82911 transitions. [2021-11-17 00:59:07,703 INFO L78 Accepts]: Start accepts. Automaton has 56273 states and 82911 transitions. Word has length 543 [2021-11-17 00:59:07,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 00:59:07,704 INFO L470 AbstractCegarLoop]: Abstraction has 56273 states and 82911 transitions. [2021-11-17 00:59:07,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.0) internal successors, (180), 3 states have internal predecessors, (180), 3 states have call successors, (77), 5 states have call predecessors, (77), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2021-11-17 00:59:07,704 INFO L276 IsEmpty]: Start isEmpty. Operand 56273 states and 82911 transitions. [2021-11-17 00:59:07,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2021-11-17 00:59:07,745 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 00:59:07,745 INFO L514 BasicCegarLoop]: trace histogram [68, 68, 68, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 00:59:07,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 00:59:07,745 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 00:59:07,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 00:59:07,746 INFO L85 PathProgramCache]: Analyzing trace with hash -473399745, now seen corresponding path program 1 times [2021-11-17 00:59:07,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 00:59:07,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002133830] [2021-11-17 00:59:07,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 00:59:07,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 00:59:07,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:59:08,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:59:08,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:59:08,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 00:59:08,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 00:59:08,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 00:59:08,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 00:59:08,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 00:59:08,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 00:59:08,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 00:59:08,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 00:59:08,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-17 00:59:08,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 00:59:08,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 00:59:08,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-17 00:59:08,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 00:59:08,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 00:59:08,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 00:59:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 00:59:08,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 00:59:08,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 00:59:08,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 00:59:08,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 00:59:08,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 00:59:08,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 00:59:08,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-17 00:59:08,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 00:59:08,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 00:59:08,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 00:59:08,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-17 00:59:08,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 00:59:08,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-17 00:59:08,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-17 00:59:08,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-17 00:59:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 00:59:08,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 00:59:08,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-17 00:59:08,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 00:59:08,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-17 00:59:08,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 00:59:08,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 00:59:08,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 00:59:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 00:59:08,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-17 00:59:08,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 00:59:08,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 00:59:08,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 00:59:08,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-17 00:59:08,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 00:59:08,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-17 00:59:08,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-17 00:59:08,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-11-17 00:59:08,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2021-11-17 00:59:08,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-11-17 00:59:08,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-11-17 00:59:08,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2021-11-17 00:59:08,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-11-17 00:59:08,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2021-11-17 00:59:08,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-11-17 00:59:08,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2021-11-17 00:59:08,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-11-17 00:59:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2021-11-17 00:59:08,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2021-11-17 00:59:08,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2021-11-17 00:59:08,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2021-11-17 00:59:08,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2021-11-17 00:59:08,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2021-11-17 00:59:08,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2021-11-17 00:59:08,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-17 00:59:08,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2021-11-17 00:59:08,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2021-11-17 00:59:08,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 465 [2021-11-17 00:59:08,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:59:08,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 00:59:08,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:59:08,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 00:59:08,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:08,809 INFO L134 CoverageAnalysis]: Checked inductivity of 9156 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 9136 trivial. 0 not checked. [2021-11-17 00:59:08,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 00:59:08,810 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002133830] [2021-11-17 00:59:08,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002133830] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 00:59:08,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 00:59:08,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 00:59:08,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116946559] [2021-11-17 00:59:08,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 00:59:08,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 00:59:08,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 00:59:08,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 00:59:08,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 00:59:08,813 INFO L87 Difference]: Start difference. First operand 56273 states and 82911 transitions. Second operand has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 3 states have internal predecessors, (167), 3 states have call successors, (77), 5 states have call predecessors, (77), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2021-11-17 00:59:10,875 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:59:12,944 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:59:15,003 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:59:17,176 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:59:30,883 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:59:35,418 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:59:37,466 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:59:39,515 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:59:42,105 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:59:49,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 00:59:49,690 INFO L93 Difference]: Finished difference Result 151992 states and 225439 transitions. [2021-11-17 00:59:49,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 00:59:49,691 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 3 states have internal predecessors, (167), 3 states have call successors, (77), 5 states have call predecessors, (77), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) Word has length 530 [2021-11-17 00:59:49,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 00:59:50,022 INFO L225 Difference]: With dead ends: 151992 [2021-11-17 00:59:50,023 INFO L226 Difference]: Without dead ends: 95829 [2021-11-17 00:59:50,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 00:59:50,148 INFO L933 BasicCegarLoop]: 2904 mSDtfsCounter, 2751 mSDsluCounter, 5665 mSDsCounter, 0 mSdLazyCounter, 3964 mSolverCounterSat, 694 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2978 SdHoareTripleChecker+Valid, 8569 SdHoareTripleChecker+Invalid, 4667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 694 IncrementalHoareTripleChecker+Valid, 3964 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.7s IncrementalHoareTripleChecker+Time [2021-11-17 00:59:50,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2978 Valid, 8569 Invalid, 4667 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [694 Valid, 3964 Invalid, 9 Unknown, 0 Unchecked, 38.7s Time] [2021-11-17 00:59:50,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95829 states. [2021-11-17 00:59:52,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95829 to 83243. [2021-11-17 00:59:52,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83243 states, 66883 states have (on average 1.441861160534067) internal successors, (96436), 67597 states have internal predecessors, (96436), 12498 states have call successors, (12498), 3654 states have call predecessors, (12498), 3861 states have return successors, (13418), 12441 states have call predecessors, (13418), 12497 states have call successors, (13418) [2021-11-17 00:59:52,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83243 states to 83243 states and 122352 transitions. [2021-11-17 00:59:52,751 INFO L78 Accepts]: Start accepts. Automaton has 83243 states and 122352 transitions. Word has length 530 [2021-11-17 00:59:52,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 00:59:52,752 INFO L470 AbstractCegarLoop]: Abstraction has 83243 states and 122352 transitions. [2021-11-17 00:59:52,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 3 states have internal predecessors, (167), 3 states have call successors, (77), 5 states have call predecessors, (77), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2021-11-17 00:59:52,753 INFO L276 IsEmpty]: Start isEmpty. Operand 83243 states and 122352 transitions. [2021-11-17 00:59:52,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2021-11-17 00:59:52,803 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 00:59:52,804 INFO L514 BasicCegarLoop]: trace histogram [68, 68, 68, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 00:59:52,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 00:59:52,804 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 00:59:52,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 00:59:52,805 INFO L85 PathProgramCache]: Analyzing trace with hash -2012155677, now seen corresponding path program 1 times [2021-11-17 00:59:52,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 00:59:52,805 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637738308] [2021-11-17 00:59:52,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 00:59:52,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 00:59:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:59:53,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 00:59:53,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 00:59:53,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 00:59:53,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 00:59:53,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 00:59:53,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 00:59:53,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 00:59:53,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 00:59:53,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 00:59:53,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 00:59:53,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-17 00:59:53,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 00:59:53,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 00:59:53,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-17 00:59:53,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 00:59:53,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 00:59:53,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 00:59:53,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 00:59:53,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 00:59:53,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 00:59:53,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 00:59:53,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 00:59:53,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 00:59:53,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 00:59:53,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-17 00:59:53,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 00:59:53,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 00:59:53,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 00:59:53,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-17 00:59:53,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 00:59:53,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-17 00:59:53,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-17 00:59:53,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-17 00:59:53,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 00:59:53,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 00:59:53,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-17 00:59:53,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 00:59:53,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-17 00:59:53,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 00:59:53,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 00:59:53,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 00:59:53,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 00:59:53,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-17 00:59:53,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 00:59:53,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 00:59:53,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 00:59:53,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-17 00:59:53,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 00:59:53,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-17 00:59:53,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-17 00:59:53,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-11-17 00:59:53,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2021-11-17 00:59:53,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-11-17 00:59:53,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-11-17 00:59:53,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2021-11-17 00:59:53,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-11-17 00:59:53,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2021-11-17 00:59:53,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-11-17 00:59:53,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2021-11-17 00:59:53,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-11-17 00:59:53,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2021-11-17 00:59:53,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2021-11-17 00:59:53,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2021-11-17 00:59:53,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2021-11-17 00:59:53,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2021-11-17 00:59:53,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2021-11-17 00:59:53,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2021-11-17 00:59:53,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-17 00:59:53,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2021-11-17 00:59:53,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2021-11-17 00:59:53,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2021-11-17 00:59:53,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 00:59:53,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 00:59:53,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 00:59:53,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 00:59:53,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 00:59:53,875 INFO L134 CoverageAnalysis]: Checked inductivity of 9162 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 9136 trivial. 0 not checked. [2021-11-17 00:59:53,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 00:59:53,876 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637738308] [2021-11-17 00:59:53,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637738308] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 00:59:53,876 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 00:59:53,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 00:59:53,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841644669] [2021-11-17 00:59:53,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 00:59:53,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 00:59:53,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 00:59:53,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 00:59:53,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 00:59:53,877 INFO L87 Difference]: Start difference. First operand 83243 states and 122352 transitions. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 3 states have internal predecessors, (174), 3 states have call successors, (77), 5 states have call predecessors, (77), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2021-11-17 00:59:55,942 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 00:59:58,213 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:00:00,268 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:00:02,324 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:00:18,914 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:00:25,406 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:00:27,934 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:00:30,786 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:00:32,958 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:00:35,144 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:00:37,250 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:00:39,374 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:00:41,633 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:00:44,615 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.98s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:00:54,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:00:54,151 INFO L93 Difference]: Finished difference Result 224520 states and 332022 transitions. [2021-11-17 01:00:54,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 01:00:54,152 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 3 states have internal predecessors, (174), 3 states have call successors, (77), 5 states have call predecessors, (77), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) Word has length 537 [2021-11-17 01:00:54,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:00:54,770 INFO L225 Difference]: With dead ends: 224520 [2021-11-17 01:00:54,770 INFO L226 Difference]: Without dead ends: 141387 [2021-11-17 01:00:54,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 01:00:54,948 INFO L933 BasicCegarLoop]: 3169 mSDtfsCounter, 2608 mSDsluCounter, 5854 mSDsCounter, 0 mSdLazyCounter, 4438 mSolverCounterSat, 648 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2826 SdHoareTripleChecker+Valid, 9023 SdHoareTripleChecker+Invalid, 5099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 648 IncrementalHoareTripleChecker+Valid, 4438 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.8s IncrementalHoareTripleChecker+Time [2021-11-17 01:00:54,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2826 Valid, 9023 Invalid, 5099 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [648 Valid, 4438 Invalid, 13 Unknown, 0 Unchecked, 56.8s Time] [2021-11-17 01:00:55,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141387 states. [2021-11-17 01:00:58,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141387 to 122227. [2021-11-17 01:00:58,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122227 states, 98383 states have (on average 1.4393543600012197) internal successors, (141608), 99447 states have internal predecessors, (141608), 18102 states have call successors, (18102), 5438 states have call predecessors, (18102), 5741 states have return successors, (19369), 18015 states have call predecessors, (19369), 18101 states have call successors, (19369) [2021-11-17 01:00:58,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122227 states to 122227 states and 179079 transitions. [2021-11-17 01:00:58,882 INFO L78 Accepts]: Start accepts. Automaton has 122227 states and 179079 transitions. Word has length 537 [2021-11-17 01:00:58,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:00:58,883 INFO L470 AbstractCegarLoop]: Abstraction has 122227 states and 179079 transitions. [2021-11-17 01:00:58,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 3 states have internal predecessors, (174), 3 states have call successors, (77), 5 states have call predecessors, (77), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2021-11-17 01:00:58,883 INFO L276 IsEmpty]: Start isEmpty. Operand 122227 states and 179079 transitions. [2021-11-17 01:00:58,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2021-11-17 01:00:58,908 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:00:58,908 INFO L514 BasicCegarLoop]: trace histogram [68, 68, 68, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:00:58,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 01:00:58,908 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:00:58,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:00:58,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1003307253, now seen corresponding path program 1 times [2021-11-17 01:00:58,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:00:58,909 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145372479] [2021-11-17 01:00:58,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:00:58,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:00:59,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:00:59,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:00:59,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:00:59,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:00:59,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:00:59,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:00:59,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:00:59,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:00:59,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:00:59,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 01:00:59,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 01:00:59,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-17 01:00:59,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 01:00:59,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 01:00:59,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-17 01:00:59,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 01:00:59,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 01:00:59,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 01:00:59,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 01:00:59,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 01:00:59,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 01:00:59,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 01:00:59,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 01:00:59,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 01:00:59,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 01:00:59,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-17 01:00:59,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 01:00:59,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 01:00:59,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 01:00:59,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-17 01:00:59,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 01:00:59,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-17 01:00:59,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-17 01:00:59,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-17 01:00:59,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 01:00:59,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 01:00:59,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-17 01:00:59,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 01:00:59,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-17 01:00:59,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 01:00:59,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 01:00:59,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 01:00:59,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 01:00:59,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-17 01:00:59,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 01:00:59,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 01:00:59,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 01:00:59,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-17 01:00:59,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 01:00:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-17 01:00:59,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-17 01:00:59,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-11-17 01:00:59,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2021-11-17 01:00:59,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-11-17 01:00:59,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-11-17 01:00:59,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2021-11-17 01:00:59,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-11-17 01:00:59,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2021-11-17 01:00:59,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-11-17 01:00:59,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2021-11-17 01:00:59,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-11-17 01:00:59,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2021-11-17 01:00:59,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2021-11-17 01:00:59,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2021-11-17 01:00:59,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2021-11-17 01:00:59,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2021-11-17 01:00:59,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2021-11-17 01:00:59,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2021-11-17 01:00:59,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-17 01:00:59,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2021-11-17 01:00:59,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:59,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2021-11-17 01:00:59,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:00,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2021-11-17 01:01:00,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:00,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:01:00,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:00,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 01:01:00,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:00,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:01:00,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:00,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 01:01:00,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:00,908 INFO L134 CoverageAnalysis]: Checked inductivity of 9162 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 9010 trivial. 0 not checked. [2021-11-17 01:01:00,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:01:00,909 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145372479] [2021-11-17 01:01:00,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145372479] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:01:00,909 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:01:00,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-17 01:01:00,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926861335] [2021-11-17 01:01:00,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:01:00,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-17 01:01:00,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:01:00,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-17 01:01:00,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2021-11-17 01:01:00,911 INFO L87 Difference]: Start difference. First operand 122227 states and 179079 transitions. Second operand has 12 states, 12 states have (on average 14.083333333333334) internal successors, (169), 7 states have internal predecessors, (169), 2 states have call successors, (77), 5 states have call predecessors, (77), 4 states have return successors, (76), 4 states have call predecessors, (76), 2 states have call successors, (76) [2021-11-17 01:01:02,992 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:01:05,069 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:01:26,520 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:01:28,891 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:01:34,864 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:01:37,921 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:01:44,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:01:44,214 INFO L93 Difference]: Finished difference Result 271751 states and 402745 transitions. [2021-11-17 01:01:44,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-17 01:01:44,215 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 14.083333333333334) internal successors, (169), 7 states have internal predecessors, (169), 2 states have call successors, (77), 5 states have call predecessors, (77), 4 states have return successors, (76), 4 states have call predecessors, (76), 2 states have call successors, (76) Word has length 537 [2021-11-17 01:01:44,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:01:44,991 INFO L225 Difference]: With dead ends: 271751 [2021-11-17 01:01:44,991 INFO L226 Difference]: Without dead ends: 149634 [2021-11-17 01:01:45,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2021-11-17 01:01:45,401 INFO L933 BasicCegarLoop]: 2160 mSDtfsCounter, 1325 mSDsluCounter, 15429 mSDsCounter, 0 mSdLazyCounter, 4806 mSolverCounterSat, 898 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1393 SdHoareTripleChecker+Valid, 17589 SdHoareTripleChecker+Invalid, 5710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 898 IncrementalHoareTripleChecker+Valid, 4806 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.2s IncrementalHoareTripleChecker+Time [2021-11-17 01:01:45,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1393 Valid, 17589 Invalid, 5710 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [898 Valid, 4806 Invalid, 6 Unknown, 0 Unchecked, 38.2s Time] [2021-11-17 01:01:45,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149634 states. [2021-11-17 01:01:48,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149634 to 125673. [2021-11-17 01:01:48,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125673 states, 101047 states have (on average 1.4373311429334863) internal successors, (145238), 102269 states have internal predecessors, (145238), 18624 states have call successors, (18624), 5438 states have call predecessors, (18624), 6001 states have return successors, (20607), 18657 states have call predecessors, (20607), 18623 states have call successors, (20607) [2021-11-17 01:01:49,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125673 states to 125673 states and 184469 transitions. [2021-11-17 01:01:49,391 INFO L78 Accepts]: Start accepts. Automaton has 125673 states and 184469 transitions. Word has length 537 [2021-11-17 01:01:49,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:01:49,392 INFO L470 AbstractCegarLoop]: Abstraction has 125673 states and 184469 transitions. [2021-11-17 01:01:49,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.083333333333334) internal successors, (169), 7 states have internal predecessors, (169), 2 states have call successors, (77), 5 states have call predecessors, (77), 4 states have return successors, (76), 4 states have call predecessors, (76), 2 states have call successors, (76) [2021-11-17 01:01:49,392 INFO L276 IsEmpty]: Start isEmpty. Operand 125673 states and 184469 transitions. [2021-11-17 01:01:49,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2021-11-17 01:01:49,415 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:01:49,416 INFO L514 BasicCegarLoop]: trace histogram [68, 68, 67, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:01:49,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 01:01:49,416 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:01:49,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:01:49,417 INFO L85 PathProgramCache]: Analyzing trace with hash -338196996, now seen corresponding path program 1 times [2021-11-17 01:01:49,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:01:49,417 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724231219] [2021-11-17 01:01:49,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:01:49,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:01:49,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:49,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:01:49,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:49,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:01:49,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:49,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:01:49,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:49,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:01:49,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:49,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:01:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:49,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:01:49,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:49,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:01:49,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:01:50,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:01:50,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 01:01:50,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 01:01:50,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-17 01:01:50,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 01:01:50,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 01:01:50,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-17 01:01:50,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 01:01:50,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 01:01:50,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 01:01:50,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 01:01:50,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 01:01:50,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 01:01:50,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 01:01:50,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 01:01:50,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 01:01:50,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 01:01:50,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-17 01:01:50,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 01:01:50,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 01:01:50,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 01:01:50,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-17 01:01:50,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 01:01:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-17 01:01:50,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-17 01:01:50,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-17 01:01:50,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 01:01:50,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 01:01:50,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-17 01:01:50,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 01:01:50,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-17 01:01:50,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 01:01:50,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 01:01:50,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 01:01:50,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 01:01:50,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-17 01:01:50,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 01:01:50,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 01:01:50,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 01:01:50,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-17 01:01:50,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 01:01:50,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-17 01:01:50,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-17 01:01:50,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-11-17 01:01:50,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2021-11-17 01:01:50,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-11-17 01:01:50,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-11-17 01:01:50,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2021-11-17 01:01:50,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-11-17 01:01:50,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2021-11-17 01:01:50,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-11-17 01:01:50,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2021-11-17 01:01:50,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-11-17 01:01:50,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2021-11-17 01:01:50,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2021-11-17 01:01:50,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2021-11-17 01:01:50,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2021-11-17 01:01:50,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2021-11-17 01:01:50,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2021-11-17 01:01:50,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2021-11-17 01:01:50,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-17 01:01:50,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2021-11-17 01:01:50,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2021-11-17 01:01:50,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 477 [2021-11-17 01:01:50,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:01:50,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 01:01:50,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:50,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:01:50,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:51,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 01:01:51,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:51,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-17 01:01:51,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:51,439 INFO L134 CoverageAnalysis]: Checked inductivity of 9162 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 9010 trivial. 0 not checked. [2021-11-17 01:01:51,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:01:51,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724231219] [2021-11-17 01:01:51,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724231219] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:01:51,439 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:01:51,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-17 01:01:51,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129119284] [2021-11-17 01:01:51,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:01:51,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-17 01:01:51,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:01:51,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-17 01:01:51,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2021-11-17 01:01:51,441 INFO L87 Difference]: Start difference. First operand 125673 states and 184469 transitions. Second operand has 13 states, 13 states have (on average 13.846153846153847) internal successors, (180), 8 states have internal predecessors, (180), 3 states have call successors, (78), 5 states have call predecessors, (78), 4 states have return successors, (77), 5 states have call predecessors, (77), 3 states have call successors, (77) [2021-11-17 01:01:53,506 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:01:55,767 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:01:57,820 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:02:21,682 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:02:23,857 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:02:26,023 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:02:33,682 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:02:35,558 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:02:37,606 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:02:40,797 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:02:42,961 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:02:45,119 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:02:47,288 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:02:49,453 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:02:51,632 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:02:53,790 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:02:55,962 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:02:58,127 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:03:00,306 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:03:02,480 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:03:10,733 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:03:12,902 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:03:16,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:03:16,105 INFO L93 Difference]: Finished difference Result 281245 states and 418655 transitions. [2021-11-17 01:03:16,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-17 01:03:16,106 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 13.846153846153847) internal successors, (180), 8 states have internal predecessors, (180), 3 states have call successors, (78), 5 states have call predecessors, (78), 4 states have return successors, (77), 5 states have call predecessors, (77), 3 states have call successors, (77) Word has length 550 [2021-11-17 01:03:16,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:03:16,986 INFO L225 Difference]: With dead ends: 281245 [2021-11-17 01:03:16,987 INFO L226 Difference]: Without dead ends: 155682 [2021-11-17 01:03:17,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2021-11-17 01:03:17,254 INFO L933 BasicCegarLoop]: 2284 mSDtfsCounter, 638 mSDsluCounter, 19177 mSDsCounter, 0 mSdLazyCounter, 6484 mSolverCounterSat, 314 mSolverCounterUnsat, 21 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 73.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 710 SdHoareTripleChecker+Valid, 21461 SdHoareTripleChecker+Invalid, 6819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 314 IncrementalHoareTripleChecker+Valid, 6484 IncrementalHoareTripleChecker+Invalid, 21 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 80.1s IncrementalHoareTripleChecker+Time [2021-11-17 01:03:17,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [710 Valid, 21461 Invalid, 6819 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [314 Valid, 6484 Invalid, 21 Unknown, 0 Unchecked, 80.1s Time] [2021-11-17 01:03:17,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155682 states. [2021-11-17 01:03:20,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155682 to 125065. [2021-11-17 01:03:20,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125065 states, 100561 states have (on average 1.4373763188512445) internal successors, (144544), 101661 states have internal predecessors, (144544), 18624 states have call successors, (18624), 5438 states have call predecessors, (18624), 5879 states have return successors, (20293), 18657 states have call predecessors, (20293), 18623 states have call successors, (20293) [2021-11-17 01:03:21,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125065 states to 125065 states and 183461 transitions. [2021-11-17 01:03:21,422 INFO L78 Accepts]: Start accepts. Automaton has 125065 states and 183461 transitions. Word has length 550 [2021-11-17 01:03:21,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:03:21,423 INFO L470 AbstractCegarLoop]: Abstraction has 125065 states and 183461 transitions. [2021-11-17 01:03:21,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 13.846153846153847) internal successors, (180), 8 states have internal predecessors, (180), 3 states have call successors, (78), 5 states have call predecessors, (78), 4 states have return successors, (77), 5 states have call predecessors, (77), 3 states have call successors, (77) [2021-11-17 01:03:21,423 INFO L276 IsEmpty]: Start isEmpty. Operand 125065 states and 183461 transitions. [2021-11-17 01:03:21,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2021-11-17 01:03:21,448 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:03:21,449 INFO L514 BasicCegarLoop]: trace histogram [68, 68, 68, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:03:21,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 01:03:21,449 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:03:21,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:03:21,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1942982147, now seen corresponding path program 1 times [2021-11-17 01:03:21,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:03:21,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533251372] [2021-11-17 01:03:21,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:03:21,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:03:21,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:21,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:03:21,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:21,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:03:21,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:21,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:03:21,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:21,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:03:21,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:21,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:03:21,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:21,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:03:21,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:21,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:03:21,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:21,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:03:21,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:21,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:03:21,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:21,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 01:03:21,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:21,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 01:03:21,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:21,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-17 01:03:21,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:21,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 01:03:21,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:21,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 01:03:21,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:21,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-17 01:03:21,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:21,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 01:03:21,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:21,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 01:03:21,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:21,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 01:03:21,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:21,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 01:03:21,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:21,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 01:03:21,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:21,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 01:03:21,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:21,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 01:03:21,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:21,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 01:03:21,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:21,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 01:03:21,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 01:03:22,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-17 01:03:22,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 01:03:22,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 01:03:22,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 01:03:22,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-17 01:03:22,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 01:03:22,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-17 01:03:22,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-17 01:03:22,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-17 01:03:22,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 01:03:22,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 01:03:22,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-17 01:03:22,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 01:03:22,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-17 01:03:22,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 01:03:22,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 01:03:22,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 01:03:22,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 01:03:22,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-17 01:03:22,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 01:03:22,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 01:03:22,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 01:03:22,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-17 01:03:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 01:03:22,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-17 01:03:22,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-17 01:03:22,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-11-17 01:03:22,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2021-11-17 01:03:22,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-11-17 01:03:22,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-11-17 01:03:22,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2021-11-17 01:03:22,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-11-17 01:03:22,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2021-11-17 01:03:22,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-11-17 01:03:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2021-11-17 01:03:22,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-11-17 01:03:22,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2021-11-17 01:03:22,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2021-11-17 01:03:22,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2021-11-17 01:03:22,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2021-11-17 01:03:22,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2021-11-17 01:03:22,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2021-11-17 01:03:22,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2021-11-17 01:03:22,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-17 01:03:22,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2021-11-17 01:03:22,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2021-11-17 01:03:22,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2021-11-17 01:03:22,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:03:22,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 01:03:22,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:22,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:03:22,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:23,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-17 01:03:23,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:23,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 01:03:23,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:23,158 INFO L134 CoverageAnalysis]: Checked inductivity of 9162 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 9010 trivial. 0 not checked. [2021-11-17 01:03:23,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:03:23,159 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533251372] [2021-11-17 01:03:23,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533251372] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:03:23,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:03:23,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-17 01:03:23,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080419619] [2021-11-17 01:03:23,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:03:23,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-17 01:03:23,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:03:23,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-17 01:03:23,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-11-17 01:03:23,162 INFO L87 Difference]: Start difference. First operand 125065 states and 183461 transitions. Second operand has 11 states, 11 states have (on average 15.727272727272727) internal successors, (173), 6 states have internal predecessors, (173), 4 states have call successors, (78), 6 states have call predecessors, (78), 3 states have return successors, (77), 3 states have call predecessors, (77), 4 states have call successors, (77) [2021-11-17 01:03:25,229 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:03:27,527 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:03:29,602 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:03:51,664 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:03:54,148 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:03:56,278 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:03:58,406 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:04:00,556 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:04:02,709 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:04:04,877 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:04:07,052 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:04:09,234 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:04:15,625 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:04:19,303 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:04:21,474 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:04:24,055 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.58s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:04:26,398 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:04:28,586 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:04:36,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:04:36,100 INFO L93 Difference]: Finished difference Result 279593 states and 416051 transitions. [2021-11-17 01:04:36,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-17 01:04:36,101 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.727272727272727) internal successors, (173), 6 states have internal predecessors, (173), 4 states have call successors, (78), 6 states have call predecessors, (78), 3 states have return successors, (77), 3 states have call predecessors, (77), 4 states have call successors, (77) Word has length 543 [2021-11-17 01:04:36,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:04:36,869 INFO L225 Difference]: With dead ends: 279593 [2021-11-17 01:04:36,869 INFO L226 Difference]: Without dead ends: 154638 [2021-11-17 01:04:37,334 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2021-11-17 01:04:37,335 INFO L933 BasicCegarLoop]: 2017 mSDtfsCounter, 1403 mSDsluCounter, 11549 mSDsCounter, 0 mSdLazyCounter, 4899 mSolverCounterSat, 882 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1457 SdHoareTripleChecker+Valid, 13566 SdHoareTripleChecker+Invalid, 5799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 882 IncrementalHoareTripleChecker+Valid, 4899 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.7s IncrementalHoareTripleChecker+Time [2021-11-17 01:04:37,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1457 Valid, 13566 Invalid, 5799 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [882 Valid, 4899 Invalid, 18 Unknown, 0 Unchecked, 67.7s Time] [2021-11-17 01:04:37,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154638 states. [2021-11-17 01:04:41,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154638 to 129331. [2021-11-17 01:04:41,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129331 states, 103817 states have (on average 1.4372019996725007) internal successors, (149206), 104935 states have internal predecessors, (149206), 19616 states have call successors, (19616), 5438 states have call predecessors, (19616), 5897 states have return successors, (21619), 19649 states have call predecessors, (21619), 19615 states have call successors, (21619) [2021-11-17 01:04:41,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129331 states to 129331 states and 190441 transitions. [2021-11-17 01:04:41,837 INFO L78 Accepts]: Start accepts. Automaton has 129331 states and 190441 transitions. Word has length 543 [2021-11-17 01:04:41,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:04:41,838 INFO L470 AbstractCegarLoop]: Abstraction has 129331 states and 190441 transitions. [2021-11-17 01:04:41,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.727272727272727) internal successors, (173), 6 states have internal predecessors, (173), 4 states have call successors, (78), 6 states have call predecessors, (78), 3 states have return successors, (77), 3 states have call predecessors, (77), 4 states have call successors, (77) [2021-11-17 01:04:41,839 INFO L276 IsEmpty]: Start isEmpty. Operand 129331 states and 190441 transitions. [2021-11-17 01:04:41,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2021-11-17 01:04:41,869 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:04:41,870 INFO L514 BasicCegarLoop]: trace histogram [68, 68, 67, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:04:41,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-17 01:04:41,870 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:04:41,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:04:41,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1550500347, now seen corresponding path program 1 times [2021-11-17 01:04:41,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:04:41,871 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252221788] [2021-11-17 01:04:41,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:04:41,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:04:42,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:04:42,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:04:42,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:04:42,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:04:42,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:04:42,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:04:42,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:04:42,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:04:42,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:04:42,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 01:04:42,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 01:04:42,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-17 01:04:42,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 01:04:42,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 01:04:42,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-17 01:04:42,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 01:04:42,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 01:04:42,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 01:04:42,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 01:04:42,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 01:04:42,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 01:04:42,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 01:04:42,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 01:04:42,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 01:04:42,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 01:04:42,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-17 01:04:42,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 01:04:42,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 01:04:42,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 01:04:42,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-17 01:04:42,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 01:04:42,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-17 01:04:42,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-17 01:04:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-17 01:04:42,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 01:04:42,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 01:04:42,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-17 01:04:42,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 01:04:42,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-17 01:04:42,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 01:04:42,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 01:04:42,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 01:04:42,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 01:04:42,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-17 01:04:42,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 01:04:42,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 01:04:42,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 01:04:42,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-17 01:04:42,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 01:04:42,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-17 01:04:42,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-17 01:04:42,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-11-17 01:04:42,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2021-11-17 01:04:42,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-11-17 01:04:42,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-11-17 01:04:42,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:42,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2021-11-17 01:04:42,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:43,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-11-17 01:04:43,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:43,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2021-11-17 01:04:43,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:43,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-11-17 01:04:43,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:43,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2021-11-17 01:04:43,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:43,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2021-11-17 01:04:43,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:43,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2021-11-17 01:04:43,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:43,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2021-11-17 01:04:43,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:43,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2021-11-17 01:04:43,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:43,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2021-11-17 01:04:43,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:43,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2021-11-17 01:04:43,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:43,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2021-11-17 01:04:43,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:43,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2021-11-17 01:04:43,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:43,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-11-17 01:04:43,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:43,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2021-11-17 01:04:43,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:43,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2021-11-17 01:04:43,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:43,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2021-11-17 01:04:43,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:43,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:04:43,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:43,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 01:04:43,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:43,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:04:43,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:43,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 01:04:43,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:43,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-17 01:04:43,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:43,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-17 01:04:43,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:43,987 INFO L134 CoverageAnalysis]: Checked inductivity of 9156 backedges. 148 proven. 6 refuted. 0 times theorem prover too weak. 9002 trivial. 0 not checked. [2021-11-17 01:04:43,987 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:04:43,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252221788] [2021-11-17 01:04:43,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252221788] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 01:04:43,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111460424] [2021-11-17 01:04:43,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:04:43,988 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 01:04:43,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 01:04:43,989 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 01:04:44,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-17 01:04:58,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:04:58,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 6226 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-17 01:04:58,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:05:00,839 INFO L134 CoverageAnalysis]: Checked inductivity of 9156 backedges. 3960 proven. 0 refuted. 0 times theorem prover too weak. 5196 trivial. 0 not checked. [2021-11-17 01:05:00,840 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 01:05:00,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111460424] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:05:00,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 01:05:00,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 15 [2021-11-17 01:05:00,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163278936] [2021-11-17 01:05:00,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:05:00,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 01:05:00,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:05:00,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 01:05:00,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2021-11-17 01:05:00,842 INFO L87 Difference]: Start difference. First operand 129331 states and 190441 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (79), 2 states have call predecessors, (79), 3 states have return successors, (78), 2 states have call predecessors, (78), 2 states have call successors, (78) [2021-11-17 01:05:04,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:05:04,434 INFO L93 Difference]: Finished difference Result 258878 states and 382618 transitions. [2021-11-17 01:05:04,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 01:05:04,435 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (79), 2 states have call predecessors, (79), 3 states have return successors, (78), 2 states have call predecessors, (78), 2 states have call successors, (78) Word has length 543 [2021-11-17 01:05:04,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:05:05,207 INFO L225 Difference]: With dead ends: 258878 [2021-11-17 01:05:05,208 INFO L226 Difference]: Without dead ends: 129644 [2021-11-17 01:05:05,568 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 707 GetRequests, 693 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-11-17 01:05:05,569 INFO L933 BasicCegarLoop]: 2117 mSDtfsCounter, 2 mSDsluCounter, 4225 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6342 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-17 01:05:05,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 6342 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-17 01:05:05,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129644 states. [2021-11-17 01:05:09,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129644 to 129644. [2021-11-17 01:05:09,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129644 states, 104026 states have (on average 1.4373233614673255) internal successors, (149519), 105248 states have internal predecessors, (149519), 19616 states have call successors, (19616), 5438 states have call predecessors, (19616), 6001 states have return successors, (22143), 19649 states have call predecessors, (22143), 19615 states have call successors, (22143) [2021-11-17 01:05:09,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129644 states to 129644 states and 191278 transitions. [2021-11-17 01:05:09,841 INFO L78 Accepts]: Start accepts. Automaton has 129644 states and 191278 transitions. Word has length 543 [2021-11-17 01:05:09,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:05:09,849 INFO L470 AbstractCegarLoop]: Abstraction has 129644 states and 191278 transitions. [2021-11-17 01:05:09,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (79), 2 states have call predecessors, (79), 3 states have return successors, (78), 2 states have call predecessors, (78), 2 states have call successors, (78) [2021-11-17 01:05:09,849 INFO L276 IsEmpty]: Start isEmpty. Operand 129644 states and 191278 transitions. [2021-11-17 01:05:09,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2021-11-17 01:05:09,883 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:05:09,883 INFO L514 BasicCegarLoop]: trace histogram [68, 68, 67, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:05:10,012 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-17 01:05:10,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-17 01:05:10,090 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:05:10,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:05:10,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1176877901, now seen corresponding path program 1 times [2021-11-17 01:05:10,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:05:10,091 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732213706] [2021-11-17 01:05:10,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:05:10,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:05:10,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:10,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:05:10,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:10,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:05:10,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:10,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:05:10,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:10,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:05:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:10,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:05:10,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:10,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:05:10,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:10,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:05:10,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:10,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:05:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:10,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:05:10,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:10,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 01:05:10,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:10,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 01:05:10,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:10,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-17 01:05:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:10,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 01:05:10,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:10,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 01:05:10,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:10,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-17 01:05:10,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:10,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 01:05:10,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:10,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 01:05:10,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:10,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 01:05:10,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:10,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 01:05:10,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:10,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 01:05:10,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:10,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 01:05:10,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:10,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 01:05:10,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:10,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 01:05:10,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:10,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 01:05:10,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:10,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 01:05:10,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:10,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-17 01:05:10,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:10,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 01:05:10,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:10,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 01:05:10,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:10,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 01:05:10,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:10,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-11-17 01:05:10,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:10,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 01:05:11,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-11-17 01:05:11,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-17 01:05:11,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-17 01:05:11,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-17 01:05:11,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-11-17 01:05:11,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-17 01:05:11,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-11-17 01:05:11,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-17 01:05:11,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-11-17 01:05:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-11-17 01:05:11,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 01:05:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 01:05:11,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-17 01:05:11,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 01:05:11,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 01:05:11,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 01:05:11,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-17 01:05:11,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2021-11-17 01:05:11,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-11-17 01:05:11,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-11-17 01:05:11,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2021-11-17 01:05:11,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2021-11-17 01:05:11,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2021-11-17 01:05:11,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2021-11-17 01:05:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2021-11-17 01:05:11,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2021-11-17 01:05:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2021-11-17 01:05:11,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2021-11-17 01:05:11,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2021-11-17 01:05:11,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2021-11-17 01:05:11,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2021-11-17 01:05:11,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2021-11-17 01:05:11,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2021-11-17 01:05:11,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2021-11-17 01:05:11,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2021-11-17 01:05:11,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2021-11-17 01:05:11,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2021-11-17 01:05:11,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2021-11-17 01:05:11,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2021-11-17 01:05:11,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 453 [2021-11-17 01:05:11,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:11,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2021-11-17 01:05:11,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:12,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:05:12,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:12,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 01:05:12,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:12,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:05:12,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:12,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 01:05:12,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:12,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-17 01:05:12,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:12,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-17 01:05:12,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:12,222 INFO L134 CoverageAnalysis]: Checked inductivity of 9178 backedges. 148 proven. 6 refuted. 0 times theorem prover too weak. 9024 trivial. 0 not checked. [2021-11-17 01:05:12,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:05:12,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732213706] [2021-11-17 01:05:12,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732213706] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 01:05:12,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120143350] [2021-11-17 01:05:12,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:05:12,223 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 01:05:12,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 01:05:12,224 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 01:05:12,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-17 01:05:17,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:17,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 6250 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-17 01:05:17,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:05:19,458 INFO L134 CoverageAnalysis]: Checked inductivity of 9178 backedges. 3969 proven. 1 refuted. 0 times theorem prover too weak. 5208 trivial. 0 not checked. [2021-11-17 01:05:19,458 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 01:05:21,226 INFO L134 CoverageAnalysis]: Checked inductivity of 9178 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 9159 trivial. 0 not checked. [2021-11-17 01:05:21,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120143350] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-17 01:05:21,226 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-17 01:05:21,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5] total 19 [2021-11-17 01:05:21,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972383728] [2021-11-17 01:05:21,226 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-17 01:05:21,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-17 01:05:21,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:05:21,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-17 01:05:21,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-11-17 01:05:21,228 INFO L87 Difference]: Start difference. First operand 129644 states and 191278 transitions. Second operand has 19 states, 19 states have (on average 16.05263157894737) internal successors, (305), 14 states have internal predecessors, (305), 6 states have call successors, (186), 6 states have call predecessors, (186), 6 states have return successors, (138), 6 states have call predecessors, (138), 6 states have call successors, (138) [2021-11-17 01:05:23,312 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:06:34,573 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:06:37,448 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:06:39,633 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:06:41,839 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:06:43,981 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:06:46,170 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:06:48,346 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:06:50,517 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15