./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-net--core--pktgen.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-net--core--pktgen.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 28ad7165b7652313e24287c0ae583e63a8e735cceddf7021c32bc93d57d1e3d7 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 00:00:30,721 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 00:00:30,723 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 00:00:30,757 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 00:00:30,758 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 00:00:30,759 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 00:00:30,764 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 00:00:30,765 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 00:00:30,766 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 00:00:30,767 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 00:00:30,768 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 00:00:30,769 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 00:00:30,770 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 00:00:30,771 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 00:00:30,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 00:00:30,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 00:00:30,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 00:00:30,782 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 00:00:30,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 00:00:30,785 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 00:00:30,792 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 00:00:30,792 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 00:00:30,793 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 00:00:30,794 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 00:00:30,795 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 00:00:30,798 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 00:00:30,802 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 00:00:30,802 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 00:00:30,803 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 00:00:30,804 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 00:00:30,805 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 00:00:30,806 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 00:00:30,807 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 00:00:30,808 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 00:00:30,808 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 00:00:30,809 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 00:00:30,809 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 00:00:30,810 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 00:00:30,810 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 00:00:30,810 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 00:00:30,811 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 00:00:30,812 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 00:00:30,813 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-20 00:00:30,848 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 00:00:30,849 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 00:00:30,849 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 00:00:30,849 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 00:00:30,850 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 00:00:30,850 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 00:00:30,851 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 00:00:30,852 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 00:00:30,852 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 00:00:30,853 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 00:00:30,853 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 00:00:30,853 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 00:00:30,853 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 00:00:30,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 00:00:30,854 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 00:00:30,854 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 00:00:30,854 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 00:00:30,854 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 00:00:30,855 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 00:00:30,855 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 00:00:30,855 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 00:00:30,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 00:00:30,855 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 00:00:30,856 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 00:00:30,856 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 00:00:30,856 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 00:00:30,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 00:00:30,856 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 00:00:30,857 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 00:00:30,857 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 00:00:30,857 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 28ad7165b7652313e24287c0ae583e63a8e735cceddf7021c32bc93d57d1e3d7 [2022-07-20 00:00:31,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 00:00:31,117 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 00:00:31,119 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 00:00:31,120 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 00:00:31,121 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 00:00:31,122 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-net--core--pktgen.ko-entry_point.cil.out.i [2022-07-20 00:00:31,250 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14e86b396/43da3dfbdd504f4fa8a322183f3f8fc4/FLAG3e86c168f [2022-07-20 00:00:32,125 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 00:00:32,126 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-net--core--pktgen.ko-entry_point.cil.out.i [2022-07-20 00:00:32,192 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14e86b396/43da3dfbdd504f4fa8a322183f3f8fc4/FLAG3e86c168f [2022-07-20 00:00:32,579 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14e86b396/43da3dfbdd504f4fa8a322183f3f8fc4 [2022-07-20 00:00:32,581 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 00:00:32,583 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 00:00:32,584 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 00:00:32,584 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 00:00:32,587 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 00:00:32,588 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:00:32" (1/1) ... [2022-07-20 00:00:32,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@125494f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:00:32, skipping insertion in model container [2022-07-20 00:00:32,589 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:00:32" (1/1) ... [2022-07-20 00:00:32,596 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 00:00:32,776 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 00:00:33,261 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6621] [2022-07-20 00:00:33,265 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6622-6623] [2022-07-20 00:00:34,139 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-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-net--core--pktgen.ko-entry_point.cil.out.i[213931,213944] [2022-07-20 00:00:35,705 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-20 00:00:35,725 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 00:00:35,756 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 00:00:35,872 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6621] [2022-07-20 00:00:35,873 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6622-6623] [2022-07-20 00:00:35,897 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-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-net--core--pktgen.ko-entry_point.cil.out.i[213931,213944] [2022-07-20 00:00:36,361 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-20 00:00:36,366 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 00:00:36,460 INFO L208 MainTranslator]: Completed translation [2022-07-20 00:00:36,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:00:36 WrapperNode [2022-07-20 00:00:36,461 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 00:00:36,462 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 00:00:36,462 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 00:00:36,462 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 00:00:36,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:00:36" (1/1) ... [2022-07-20 00:00:36,650 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:00:36" (1/1) ... [2022-07-20 00:00:36,922 INFO L137 Inliner]: procedures = 383, calls = 6912, calls flagged for inlining = 191, calls inlined = 77, statements flattened = 11282 [2022-07-20 00:00:36,935 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 00:00:36,936 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 00:00:36,937 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 00:00:36,937 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 00:00:36,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:00:36" (1/1) ... [2022-07-20 00:00:36,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:00:36" (1/1) ... [2022-07-20 00:00:37,011 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:00:36" (1/1) ... [2022-07-20 00:00:37,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:00:36" (1/1) ... [2022-07-20 00:00:37,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:00:36" (1/1) ... [2022-07-20 00:00:37,186 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:00:36" (1/1) ... [2022-07-20 00:00:37,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:00:36" (1/1) ... [2022-07-20 00:00:37,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 00:00:37,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 00:00:37,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 00:00:37,258 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 00:00:37,259 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:00:36" (1/1) ... [2022-07-20 00:00:37,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 00:00:37,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 00:00:37,288 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-20 00:00:37,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-20 00:00:37,331 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-20 00:00:37,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-20 00:00:37,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-20 00:00:37,332 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-20 00:00:37,332 INFO L130 BoogieDeclarations]: Found specification of procedure pktgen_if_write [2022-07-20 00:00:37,332 INFO L138 BoogieDeclarations]: Found implementation of procedure pktgen_if_write [2022-07-20 00:00:37,332 INFO L130 BoogieDeclarations]: Found specification of procedure strn_len [2022-07-20 00:00:37,333 INFO L138 BoogieDeclarations]: Found implementation of procedure strn_len [2022-07-20 00:00:37,333 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-07-20 00:00:37,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-20 00:00:37,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-20 00:00:37,333 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-07-20 00:00:37,333 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-07-20 00:00:37,334 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-07-20 00:00:37,334 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-07-20 00:00:37,334 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-20 00:00:37,334 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-20 00:00:37,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-20 00:00:37,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-20 00:00:37,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-20 00:00:37,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-20 00:00:37,335 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-07-20 00:00:37,335 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-07-20 00:00:37,335 INFO L130 BoogieDeclarations]: Found specification of procedure pktgen_thread_write [2022-07-20 00:00:37,335 INFO L138 BoogieDeclarations]: Found implementation of procedure pktgen_thread_write [2022-07-20 00:00:37,335 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-20 00:00:37,336 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-20 00:00:37,336 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-20 00:00:37,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-20 00:00:37,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-20 00:00:37,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-20 00:00:37,336 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-20 00:00:37,337 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-20 00:00:37,337 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-20 00:00:37,337 INFO L130 BoogieDeclarations]: Found specification of procedure count_trail_chars [2022-07-20 00:00:37,337 INFO L138 BoogieDeclarations]: Found implementation of procedure count_trail_chars [2022-07-20 00:00:37,337 INFO L130 BoogieDeclarations]: Found specification of procedure dev_net [2022-07-20 00:00:37,337 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_net [2022-07-20 00:00:37,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 00:00:37,338 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-20 00:00:37,338 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-20 00:00:37,338 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_release [2022-07-20 00:00:37,338 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_release [2022-07-20 00:00:37,338 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-20 00:00:37,339 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-20 00:00:37,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-20 00:00:37,339 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-07-20 00:00:37,340 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-07-20 00:00:37,340 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2022-07-20 00:00:37,341 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2022-07-20 00:00:37,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-20 00:00:37,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-20 00:00:37,342 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-07-20 00:00:37,342 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-07-20 00:00:37,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 00:00:37,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-20 00:00:37,343 INFO L130 BoogieDeclarations]: Found specification of procedure PDE_DATA [2022-07-20 00:00:37,343 INFO L138 BoogieDeclarations]: Found implementation of procedure PDE_DATA [2022-07-20 00:00:37,343 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-20 00:00:37,344 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-20 00:00:37,344 INFO L130 BoogieDeclarations]: Found specification of procedure __cpu_to_node [2022-07-20 00:00:37,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __cpu_to_node [2022-07-20 00:00:37,344 INFO L130 BoogieDeclarations]: Found specification of procedure hex32_arg [2022-07-20 00:00:37,344 INFO L138 BoogieDeclarations]: Found implementation of procedure hex32_arg [2022-07-20 00:00:37,344 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-20 00:00:37,345 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-20 00:00:37,345 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2022-07-20 00:00:37,345 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2022-07-20 00:00:37,345 INFO L130 BoogieDeclarations]: Found specification of procedure num_arg [2022-07-20 00:00:37,346 INFO L138 BoogieDeclarations]: Found implementation of procedure num_arg [2022-07-20 00:00:37,346 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-20 00:00:37,346 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-20 00:00:37,346 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-20 00:00:37,346 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-20 00:00:37,346 INFO L130 BoogieDeclarations]: Found specification of procedure pktgen_thread_open [2022-07-20 00:00:37,346 INFO L138 BoogieDeclarations]: Found implementation of procedure pktgen_thread_open [2022-07-20 00:00:37,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-20 00:00:37,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-20 00:00:37,347 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-20 00:00:37,347 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-20 00:00:37,347 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-20 00:00:37,348 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-20 00:00:37,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-20 00:00:37,348 INFO L130 BoogieDeclarations]: Found specification of procedure dev_put [2022-07-20 00:00:37,348 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_put [2022-07-20 00:00:37,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-20 00:00:37,349 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2022-07-20 00:00:37,349 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2022-07-20 00:00:37,349 INFO L130 BoogieDeclarations]: Found specification of procedure pgctrl_write [2022-07-20 00:00:37,350 INFO L138 BoogieDeclarations]: Found implementation of procedure pgctrl_write [2022-07-20 00:00:37,350 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_copy [2022-07-20 00:00:37,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_copy [2022-07-20 00:00:37,350 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-20 00:00:37,350 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-20 00:00:37,351 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-07-20 00:00:37,351 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-07-20 00:00:37,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-20 00:00:37,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-20 00:00:37,351 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2022-07-20 00:00:37,351 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2022-07-20 00:00:37,351 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-07-20 00:00:37,352 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-07-20 00:00:37,352 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-20 00:00:37,352 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-20 00:00:37,352 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-07-20 00:00:37,352 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-07-20 00:00:37,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-20 00:00:37,353 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2022-07-20 00:00:37,353 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2022-07-20 00:00:37,353 INFO L130 BoogieDeclarations]: Found specification of procedure pktgen_clear_counters [2022-07-20 00:00:37,353 INFO L138 BoogieDeclarations]: Found implementation of procedure pktgen_clear_counters [2022-07-20 00:00:37,354 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc_node [2022-07-20 00:00:37,354 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc_node [2022-07-20 00:00:37,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-20 00:00:37,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-20 00:00:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2022-07-20 00:00:37,358 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2022-07-20 00:00:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure in6_pton [2022-07-20 00:00:37,359 INFO L138 BoogieDeclarations]: Found implementation of procedure in6_pton [2022-07-20 00:00:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure proc_create_data [2022-07-20 00:00:37,359 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_create_data [2022-07-20 00:00:37,360 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2022-07-20 00:00:37,365 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2022-07-20 00:00:37,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 00:00:37,365 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2022-07-20 00:00:37,365 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2022-07-20 00:00:37,366 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-20 00:00:37,366 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-20 00:00:37,366 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-07-20 00:00:37,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-07-20 00:00:37,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 00:00:37,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-20 00:00:37,367 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-07-20 00:00:37,367 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-07-20 00:00:37,367 INFO L130 BoogieDeclarations]: Found specification of procedure __pktgen_NN_threads [2022-07-20 00:00:37,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __pktgen_NN_threads [2022-07-20 00:00:37,367 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-20 00:00:37,368 INFO L130 BoogieDeclarations]: Found specification of procedure pktgen_wait_all_threads_run [2022-07-20 00:00:37,368 INFO L138 BoogieDeclarations]: Found implementation of procedure pktgen_wait_all_threads_run [2022-07-20 00:00:37,368 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_stop [2022-07-20 00:00:37,368 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_stop [2022-07-20 00:00:37,368 INFO L130 BoogieDeclarations]: Found specification of procedure in_aton [2022-07-20 00:00:37,368 INFO L138 BoogieDeclarations]: Found implementation of procedure in_aton [2022-07-20 00:00:37,368 INFO L130 BoogieDeclarations]: Found specification of procedure mac_pton [2022-07-20 00:00:37,369 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_pton [2022-07-20 00:00:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pernet_subsys [2022-07-20 00:00:37,369 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pernet_subsys [2022-07-20 00:00:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_acquire [2022-07-20 00:00:37,369 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_acquire [2022-07-20 00:00:37,369 INFO L130 BoogieDeclarations]: Found specification of procedure proc_remove [2022-07-20 00:00:37,369 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_remove [2022-07-20 00:00:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure free_SAs [2022-07-20 00:00:37,370 INFO L138 BoogieDeclarations]: Found implementation of procedure free_SAs [2022-07-20 00:00:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-20 00:00:37,370 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-20 00:00:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-20 00:00:37,370 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-20 00:00:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure pgctrl_open [2022-07-20 00:00:37,371 INFO L138 BoogieDeclarations]: Found implementation of procedure pgctrl_open [2022-07-20 00:00:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-20 00:00:37,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-20 00:00:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-07-20 00:00:37,371 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-07-20 00:00:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-20 00:00:37,371 INFO L130 BoogieDeclarations]: Found specification of procedure pktgen_if_open [2022-07-20 00:00:37,372 INFO L138 BoogieDeclarations]: Found implementation of procedure pktgen_if_open [2022-07-20 00:00:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-07-20 00:00:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 00:00:37,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 00:00:37,372 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-20 00:00:37,372 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-20 00:00:38,159 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 00:00:38,162 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 00:00:54,385 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-20 00:00:57,238 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 00:00:57,256 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 00:00:57,256 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-20 00:00:57,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:00:57 BoogieIcfgContainer [2022-07-20 00:00:57,261 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 00:00:57,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 00:00:57,263 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 00:00:57,266 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 00:00:57,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 12:00:32" (1/3) ... [2022-07-20 00:00:57,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d8b91eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:00:57, skipping insertion in model container [2022-07-20 00:00:57,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:00:36" (2/3) ... [2022-07-20 00:00:57,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d8b91eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:00:57, skipping insertion in model container [2022-07-20 00:00:57,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:00:57" (3/3) ... [2022-07-20 00:00:57,269 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-net--core--pktgen.ko-entry_point.cil.out.i [2022-07-20 00:00:57,302 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 00:00:57,303 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-20 00:00:57,385 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 00:00:57,398 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@368b4f33, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@10486494 [2022-07-20 00:00:57,399 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-20 00:00:57,409 INFO L276 IsEmpty]: Start isEmpty. Operand has 1542 states, 1153 states have (on average 1.448395490026019) internal successors, (1670), 1170 states have internal predecessors, (1670), 311 states have call successors, (311), 77 states have call predecessors, (311), 76 states have return successors, (304), 303 states have call predecessors, (304), 304 states have call successors, (304) [2022-07-20 00:00:57,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-07-20 00:00:57,449 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:00:57,451 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:00:57,451 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:00:57,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:00:57,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1040167170, now seen corresponding path program 1 times [2022-07-20 00:00:57,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:00:57,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659445256] [2022-07-20 00:00:57,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:00:57,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:00:57,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:00:58,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:00:58,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:00:58,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-20 00:00:58,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:00:58,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 00:00:58,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:00:58,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-20 00:00:58,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:00:58,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-20 00:00:58,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:00:58,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-20 00:00:58,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:00:58,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-20 00:00:58,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:00:58,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-20 00:00:58,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:00:58,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:00:58,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:00:58,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-20 00:00:58,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:00:58,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-20 00:00:58,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:00:58,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-20 00:00:58,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:00:58,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-20 00:00:58,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:00:58,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-20 00:00:58,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:00:58,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:00:58,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:00:58,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-20 00:00:58,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:00:58,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-20 00:00:58,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:00:58,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-20 00:00:58,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:00:58,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:00:58,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:00:58,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-20 00:00:58,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:00:58,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-20 00:00:58,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:00:58,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-20 00:00:58,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:00:58,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-20 00:00:58,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:00:58,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-20 00:00:58,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:00:58,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-20 00:00:58,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:00:58,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:00:58,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:00:58,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-20 00:00:58,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:00:58,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-20 00:00:58,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:00:58,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-20 00:00:58,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:00:58,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-20 00:00:58,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:00:58,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-20 00:00:58,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:00:58,585 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2022-07-20 00:00:58,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:00:58,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659445256] [2022-07-20 00:00:58,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659445256] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:00:58,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:00:58,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 00:00:58,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328971130] [2022-07-20 00:00:58,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:00:58,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 00:00:58,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:00:58,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 00:00:58,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 00:00:58,630 INFO L87 Difference]: Start difference. First operand has 1542 states, 1153 states have (on average 1.448395490026019) internal successors, (1670), 1170 states have internal predecessors, (1670), 311 states have call successors, (311), 77 states have call predecessors, (311), 76 states have return successors, (304), 303 states have call predecessors, (304), 304 states have call successors, (304) Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (32), 5 states have call predecessors, (32), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-20 00:01:36,097 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:01:38,121 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:01:40,142 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:01:42,172 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:01:44,194 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:01:46,216 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:01:48,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:01:50,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:01:52,302 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:02:01,135 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:02:03,154 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:02:05,177 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:02:07,205 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:02:09,224 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:02:11,247 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:02:13,285 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:02:15,304 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:02:17,324 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:02:20,759 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:02:22,054 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:02:23,206 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:02:23,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:02:23,655 INFO L93 Difference]: Finished difference Result 4499 states and 6755 transitions. [2022-07-20 00:02:23,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-20 00:02:23,657 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (32), 5 states have call predecessors, (32), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 213 [2022-07-20 00:02:23,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:02:23,693 INFO L225 Difference]: With dead ends: 4499 [2022-07-20 00:02:23,693 INFO L226 Difference]: Without dead ends: 2925 [2022-07-20 00:02:23,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-07-20 00:02:23,716 INFO L413 NwaCegarLoop]: 2399 mSDtfsCounter, 2750 mSDsluCounter, 3736 mSDsCounter, 0 mSdLazyCounter, 3781 mSolverCounterSat, 828 mSolverCounterUnsat, 19 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 82.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2972 SdHoareTripleChecker+Valid, 6135 SdHoareTripleChecker+Invalid, 4628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 828 IncrementalHoareTripleChecker+Valid, 3781 IncrementalHoareTripleChecker+Invalid, 19 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 84.4s IncrementalHoareTripleChecker+Time [2022-07-20 00:02:23,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2972 Valid, 6135 Invalid, 4628 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [828 Valid, 3781 Invalid, 19 Unknown, 0 Unchecked, 84.4s Time] [2022-07-20 00:02:23,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2022-07-20 00:02:23,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 2750. [2022-07-20 00:02:23,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2750 states, 2066 states have (on average 1.4351403678606003) internal successors, (2965), 2081 states have internal predecessors, (2965), 541 states have call successors, (541), 143 states have call predecessors, (541), 142 states have return successors, (539), 537 states have call predecessors, (539), 539 states have call successors, (539) [2022-07-20 00:02:23,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2750 states to 2750 states and 4045 transitions. [2022-07-20 00:02:23,978 INFO L78 Accepts]: Start accepts. Automaton has 2750 states and 4045 transitions. Word has length 213 [2022-07-20 00:02:23,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:02:23,980 INFO L495 AbstractCegarLoop]: Abstraction has 2750 states and 4045 transitions. [2022-07-20 00:02:23,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (32), 5 states have call predecessors, (32), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-20 00:02:23,980 INFO L276 IsEmpty]: Start isEmpty. Operand 2750 states and 4045 transitions. [2022-07-20 00:02:23,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-07-20 00:02:23,995 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:02:23,995 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 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] [2022-07-20 00:02:23,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-20 00:02:23,996 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:02:23,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:02:23,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1442494954, now seen corresponding path program 1 times [2022-07-20 00:02:23,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:02:23,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122971965] [2022-07-20 00:02:23,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:02:23,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:02:24,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:02:24,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:02:24,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:02:24,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-20 00:02:24,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:02:24,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 00:02:24,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:02:24,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-20 00:02:24,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:02:24,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-20 00:02:24,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:02:24,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-20 00:02:24,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:02:24,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-20 00:02:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:02:24,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-20 00:02:24,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:02:24,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:02:24,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:02:24,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-20 00:02:24,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:02:24,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-20 00:02:24,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:02:24,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-20 00:02:24,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:02:24,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-20 00:02:24,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:02:24,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-20 00:02:24,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:02:24,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-20 00:02:24,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:02:24,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:02:24,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:02:24,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-20 00:02:24,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:02:24,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-20 00:02:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:02:24,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-20 00:02:24,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:02:24,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-20 00:02:24,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:02:24,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 00:02:24,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:02:24,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-20 00:02:24,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:02:24,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:02:24,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:02:24,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-20 00:02:24,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:02:24,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-20 00:02:24,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:02:24,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-20 00:02:24,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:02:24,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-20 00:02:24,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:02:24,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-20 00:02:24,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:02:24,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:02:24,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:02:24,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-20 00:02:24,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:02:24,661 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2022-07-20 00:02:24,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:02:24,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122971965] [2022-07-20 00:02:24,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122971965] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:02:24,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:02:24,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 00:02:24,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513207810] [2022-07-20 00:02:24,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:02:24,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 00:02:24,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:02:24,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 00:02:24,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-20 00:02:24,666 INFO L87 Difference]: Start difference. First operand 2750 states and 4045 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (33), 5 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-20 00:02:49,104 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:02:51,140 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:02:53,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:03:00,744 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:03:01,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:03:01,404 INFO L93 Difference]: Finished difference Result 8190 states and 12149 transitions. [2022-07-20 00:03:01,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-20 00:03:01,405 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (33), 5 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 208 [2022-07-20 00:03:01,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:03:01,443 INFO L225 Difference]: With dead ends: 8190 [2022-07-20 00:03:01,443 INFO L226 Difference]: Without dead ends: 5480 [2022-07-20 00:03:01,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-07-20 00:03:01,461 INFO L413 NwaCegarLoop]: 2496 mSDtfsCounter, 4978 mSDsluCounter, 3281 mSDsCounter, 0 mSdLazyCounter, 2619 mSolverCounterSat, 2174 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5221 SdHoareTripleChecker+Valid, 5777 SdHoareTripleChecker+Invalid, 4797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2174 IncrementalHoareTripleChecker+Valid, 2619 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.3s IncrementalHoareTripleChecker+Time [2022-07-20 00:03:01,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5221 Valid, 5777 Invalid, 4797 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2174 Valid, 2619 Invalid, 4 Unknown, 0 Unchecked, 36.3s Time] [2022-07-20 00:03:01,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5480 states. [2022-07-20 00:03:01,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5480 to 5172. [2022-07-20 00:03:01,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5172 states, 3914 states have (on average 1.4491568727644353) internal successors, (5672), 3942 states have internal predecessors, (5672), 991 states have call successors, (991), 267 states have call predecessors, (991), 266 states have return successors, (989), 984 states have call predecessors, (989), 989 states have call successors, (989) [2022-07-20 00:03:01,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5172 states to 5172 states and 7652 transitions. [2022-07-20 00:03:01,706 INFO L78 Accepts]: Start accepts. Automaton has 5172 states and 7652 transitions. Word has length 208 [2022-07-20 00:03:01,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:03:01,706 INFO L495 AbstractCegarLoop]: Abstraction has 5172 states and 7652 transitions. [2022-07-20 00:03:01,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (33), 5 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-20 00:03:01,707 INFO L276 IsEmpty]: Start isEmpty. Operand 5172 states and 7652 transitions. [2022-07-20 00:03:01,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-07-20 00:03:01,800 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:03:01,801 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:03:01,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-20 00:03:01,801 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:03:01,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:03:01,802 INFO L85 PathProgramCache]: Analyzing trace with hash -514015625, now seen corresponding path program 1 times [2022-07-20 00:03:01,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:03:01,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88154268] [2022-07-20 00:03:01,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:03:01,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:03:01,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:03:02,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-20 00:03:02,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 00:03:02,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-20 00:03:02,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-20 00:03:02,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-20 00:03:02,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-20 00:03:02,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-20 00:03:02,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:03:02,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-20 00:03:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-20 00:03:02,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-20 00:03:02,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-20 00:03:02,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-20 00:03:02,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:03:02,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-20 00:03:02,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-20 00:03:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-20 00:03:02,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-20 00:03:02,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-20 00:03:02,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-20 00:03:02,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-20 00:03:02,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-20 00:03:02,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-20 00:03:02,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-20 00:03:02,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:03:02,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-20 00:03:02,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-20 00:03:02,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-20 00:03:02,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-20 00:03:02,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-20 00:03:02,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-07-20 00:03:02,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:03:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-20 00:03:02,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-20 00:03:02,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-20 00:03:02,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-07-20 00:03:02,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-20 00:03:02,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:03:02,427 INFO L134 CoverageAnalysis]: Checked inductivity of 876 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 872 trivial. 0 not checked. [2022-07-20 00:03:02,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:03:02,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88154268] [2022-07-20 00:03:02,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88154268] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:03:02,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:03:02,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 00:03:02,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281699675] [2022-07-20 00:03:02,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:03:02,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 00:03:02,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:03:02,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 00:03:02,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 00:03:02,431 INFO L87 Difference]: Start difference. First operand 5172 states and 7652 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (39), 5 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-07-20 00:03:26,879 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:03:28,909 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:03:30,943 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:03:56,886 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:03:58,916 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:04:00,939 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:04:07,251 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:04:07,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:04:07,803 INFO L93 Difference]: Finished difference Result 13616 states and 20258 transitions. [2022-07-20 00:04:07,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-20 00:04:07,804 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (39), 5 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 273 [2022-07-20 00:04:07,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:04:07,855 INFO L225 Difference]: With dead ends: 13616 [2022-07-20 00:04:07,855 INFO L226 Difference]: Without dead ends: 8484 [2022-07-20 00:04:07,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-07-20 00:04:07,880 INFO L413 NwaCegarLoop]: 3757 mSDtfsCounter, 3439 mSDsluCounter, 4445 mSDsCounter, 0 mSdLazyCounter, 3232 mSolverCounterSat, 1159 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 63.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3679 SdHoareTripleChecker+Valid, 8202 SdHoareTripleChecker+Invalid, 4397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1159 IncrementalHoareTripleChecker+Valid, 3232 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.0s IncrementalHoareTripleChecker+Time [2022-07-20 00:04:07,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3679 Valid, 8202 Invalid, 4397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1159 Valid, 3232 Invalid, 6 Unknown, 0 Unchecked, 65.0s Time] [2022-07-20 00:04:07,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8484 states. [2022-07-20 00:04:08,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8484 to 7924. [2022-07-20 00:04:08,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7924 states, 6022 states have (on average 1.452507472600465) internal successors, (8747), 6063 states have internal predecessors, (8747), 1495 states have call successors, (1495), 407 states have call predecessors, (1495), 406 states have return successors, (1493), 1486 states have call predecessors, (1493), 1493 states have call successors, (1493) [2022-07-20 00:04:08,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7924 states to 7924 states and 11735 transitions. [2022-07-20 00:04:08,209 INFO L78 Accepts]: Start accepts. Automaton has 7924 states and 11735 transitions. Word has length 273 [2022-07-20 00:04:08,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:04:08,210 INFO L495 AbstractCegarLoop]: Abstraction has 7924 states and 11735 transitions. [2022-07-20 00:04:08,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (39), 5 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-07-20 00:04:08,211 INFO L276 IsEmpty]: Start isEmpty. Operand 7924 states and 11735 transitions. [2022-07-20 00:04:08,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-07-20 00:04:08,238 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:04:08,238 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:04:08,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-20 00:04:08,239 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:04:08,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:04:08,239 INFO L85 PathProgramCache]: Analyzing trace with hash 94582647, now seen corresponding path program 1 times [2022-07-20 00:04:08,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:04:08,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594631149] [2022-07-20 00:04:08,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:04:08,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:04:08,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:04:08,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-20 00:04:08,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-20 00:04:08,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-20 00:04:08,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-20 00:04:08,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-20 00:04:08,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-20 00:04:08,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-20 00:04:08,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 00:04:08,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-20 00:04:08,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-20 00:04:08,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-20 00:04:08,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-20 00:04:08,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-20 00:04:08,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:04:08,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-20 00:04:08,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-20 00:04:08,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-20 00:04:08,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-20 00:04:08,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-20 00:04:08,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-20 00:04:08,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-20 00:04:08,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-20 00:04:08,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-20 00:04:08,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-20 00:04:08,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:04:08,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-20 00:04:08,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-20 00:04:08,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-07-20 00:04:08,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-20 00:04:08,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-20 00:04:08,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-20 00:04:08,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:04:08,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-20 00:04:08,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-20 00:04:08,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-20 00:04:08,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-07-20 00:04:08,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2022-07-20 00:04:08,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:04:08,978 INFO L134 CoverageAnalysis]: Checked inductivity of 876 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 876 trivial. 0 not checked. [2022-07-20 00:04:08,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:04:08,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594631149] [2022-07-20 00:04:08,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594631149] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:04:08,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:04:08,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-20 00:04:08,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670513834] [2022-07-20 00:04:08,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:04:08,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-20 00:04:08,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:04:08,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-20 00:04:08,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-20 00:04:08,981 INFO L87 Difference]: Start difference. First operand 7924 states and 11735 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 4 states have internal predecessors, (107), 3 states have call successors, (39), 6 states have call predecessors, (39), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35)