./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 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-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-?-3598765 [2022-07-21 11:31:46,209 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 11:31:46,211 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 11:31:46,262 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 11:31:46,263 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 11:31:46,264 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 11:31:46,268 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 11:31:46,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 11:31:46,272 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 11:31:46,276 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 11:31:46,277 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 11:31:46,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 11:31:46,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 11:31:46,281 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 11:31:46,282 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 11:31:46,287 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 11:31:46,287 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 11:31:46,289 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 11:31:46,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 11:31:46,297 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 11:31:46,298 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 11:31:46,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 11:31:46,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 11:31:46,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 11:31:46,304 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 11:31:46,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 11:31:46,306 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 11:31:46,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 11:31:46,308 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 11:31:46,308 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 11:31:46,309 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 11:31:46,309 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 11:31:46,311 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 11:31:46,311 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 11:31:46,313 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 11:31:46,313 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 11:31:46,313 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 11:31:46,314 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 11:31:46,314 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 11:31:46,314 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 11:31:46,315 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 11:31:46,316 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 11:31:46,317 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 11:31:46,348 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 11:31:46,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 11:31:46,349 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 11:31:46,349 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 11:31:46,350 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 11:31:46,350 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 11:31:46,351 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 11:31:46,351 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 11:31:46,351 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 11:31:46,352 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 11:31:46,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 11:31:46,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 11:31:46,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 11:31:46,353 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 11:31:46,353 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 11:31:46,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 11:31:46,353 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 11:31:46,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 11:31:46,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 11:31:46,354 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 11:31:46,354 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 11:31:46,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:31:46,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 11:31:46,354 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 11:31:46,354 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 11:31:46,355 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 11:31:46,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 11:31:46,355 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 11:31:46,355 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 11:31:46,355 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 11:31:46,356 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 28ad7165b7652313e24287c0ae583e63a8e735cceddf7021c32bc93d57d1e3d7 [2022-07-21 11:31:46,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 11:31:46,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 11:31:46,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 11:31:46,678 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 11:31:46,679 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 11:31:46,680 INFO L432 ainManager$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 [2022-07-21 11:31:46,740 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8d4a5c20/8a0432e46ddf43e0a63a6a0cf079edf3/FLAG9c0930827 [2022-07-21 11:31:47,599 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 11:31:47,600 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 [2022-07-21 11:31:47,660 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8d4a5c20/8a0432e46ddf43e0a63a6a0cf079edf3/FLAG9c0930827 [2022-07-21 11:31:47,748 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8d4a5c20/8a0432e46ddf43e0a63a6a0cf079edf3 [2022-07-21 11:31:47,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 11:31:47,751 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 11:31:47,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 11:31:47,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 11:31:47,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 11:31:47,755 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:31:47" (1/1) ... [2022-07-21 11:31:47,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ae3412d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:31:47, skipping insertion in model container [2022-07-21 11:31:47,756 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:31:47" (1/1) ... [2022-07-21 11:31:47,762 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 11:31:47,900 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:31:48,412 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6621] [2022-07-21 11:31:48,413 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] [2022-07-21 11:31:49,520 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] [2022-07-21 11:31:50,919 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-21 11:31:50,960 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:31:50,982 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 11:31:51,171 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6621] [2022-07-21 11:31:51,172 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] [2022-07-21 11:31:51,206 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] [2022-07-21 11:31:51,692 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-21 11:31:51,698 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:31:51,839 INFO L208 MainTranslator]: Completed translation [2022-07-21 11:31:51,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:31:51 WrapperNode [2022-07-21 11:31:51,840 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 11:31:51,841 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 11:31:51,841 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 11:31:51,841 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 11:31:51,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:31:51" (1/1) ... [2022-07-21 11:31:51,965 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:31:51" (1/1) ... [2022-07-21 11:31:52,175 INFO L137 Inliner]: procedures = 383, calls = 6912, calls flagged for inlining = 191, calls inlined = 77, statements flattened = 11282 [2022-07-21 11:31:52,175 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 11:31:52,177 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 11:31:52,177 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 11:31:52,177 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 11:31:52,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:31:51" (1/1) ... [2022-07-21 11:31:52,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:31:51" (1/1) ... [2022-07-21 11:31:52,226 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:31:51" (1/1) ... [2022-07-21 11:31:52,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:31:51" (1/1) ... [2022-07-21 11:31:52,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:31:51" (1/1) ... [2022-07-21 11:31:52,415 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:31:51" (1/1) ... [2022-07-21 11:31:52,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:31:51" (1/1) ... [2022-07-21 11:31:52,466 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 11:31:52,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 11:31:52,467 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 11:31:52,468 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 11:31:52,468 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:31:51" (1/1) ... [2022-07-21 11:31:52,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:31:52,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 11:31:52,496 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 11:31:52,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 11:31:52,536 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-21 11:31:52,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-21 11:31:52,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-21 11:31:52,537 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-21 11:31:52,537 INFO L130 BoogieDeclarations]: Found specification of procedure pktgen_if_write [2022-07-21 11:31:52,537 INFO L138 BoogieDeclarations]: Found implementation of procedure pktgen_if_write [2022-07-21 11:31:52,537 INFO L130 BoogieDeclarations]: Found specification of procedure strn_len [2022-07-21 11:31:52,537 INFO L138 BoogieDeclarations]: Found implementation of procedure strn_len [2022-07-21 11:31:52,537 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-07-21 11:31:52,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 11:31:52,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 11:31:52,538 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-07-21 11:31:52,538 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-07-21 11:31:52,538 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-07-21 11:31:52,538 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-07-21 11:31:52,538 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-21 11:31:52,539 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-21 11:31:52,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-21 11:31:52,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-21 11:31:52,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 11:31:52,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 11:31:52,539 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-07-21 11:31:52,539 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-07-21 11:31:52,540 INFO L130 BoogieDeclarations]: Found specification of procedure pktgen_thread_write [2022-07-21 11:31:52,540 INFO L138 BoogieDeclarations]: Found implementation of procedure pktgen_thread_write [2022-07-21 11:31:52,540 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-21 11:31:52,540 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-21 11:31:52,540 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-21 11:31:52,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 11:31:52,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 11:31:52,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 11:31:52,541 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 11:31:52,541 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 11:31:52,541 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 11:31:52,541 INFO L130 BoogieDeclarations]: Found specification of procedure count_trail_chars [2022-07-21 11:31:52,542 INFO L138 BoogieDeclarations]: Found implementation of procedure count_trail_chars [2022-07-21 11:31:52,542 INFO L130 BoogieDeclarations]: Found specification of procedure dev_net [2022-07-21 11:31:52,542 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_net [2022-07-21 11:31:52,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 11:31:52,542 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-21 11:31:52,542 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-21 11:31:52,543 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_release [2022-07-21 11:31:52,543 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_release [2022-07-21 11:31:52,543 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-21 11:31:52,543 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-21 11:31:52,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 11:31:52,543 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-07-21 11:31:52,544 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-07-21 11:31:52,544 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2022-07-21 11:31:52,544 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2022-07-21 11:31:52,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-21 11:31:52,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-21 11:31:52,545 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-07-21 11:31:52,546 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-07-21 11:31:52,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 11:31:52,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 11:31:52,547 INFO L130 BoogieDeclarations]: Found specification of procedure PDE_DATA [2022-07-21 11:31:52,547 INFO L138 BoogieDeclarations]: Found implementation of procedure PDE_DATA [2022-07-21 11:31:52,547 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-21 11:31:52,548 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-21 11:31:52,548 INFO L130 BoogieDeclarations]: Found specification of procedure __cpu_to_node [2022-07-21 11:31:52,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __cpu_to_node [2022-07-21 11:31:52,548 INFO L130 BoogieDeclarations]: Found specification of procedure hex32_arg [2022-07-21 11:31:52,548 INFO L138 BoogieDeclarations]: Found implementation of procedure hex32_arg [2022-07-21 11:31:52,548 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-21 11:31:52,549 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-21 11:31:52,549 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2022-07-21 11:31:52,549 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2022-07-21 11:31:52,549 INFO L130 BoogieDeclarations]: Found specification of procedure num_arg [2022-07-21 11:31:52,549 INFO L138 BoogieDeclarations]: Found implementation of procedure num_arg [2022-07-21 11:31:52,550 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-21 11:31:52,550 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-21 11:31:52,550 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-21 11:31:52,550 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-21 11:31:52,550 INFO L130 BoogieDeclarations]: Found specification of procedure pktgen_thread_open [2022-07-21 11:31:52,550 INFO L138 BoogieDeclarations]: Found implementation of procedure pktgen_thread_open [2022-07-21 11:31:52,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-21 11:31:52,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-21 11:31:52,551 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-21 11:31:52,551 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-21 11:31:52,551 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-21 11:31:52,551 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-21 11:31:52,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-21 11:31:52,552 INFO L130 BoogieDeclarations]: Found specification of procedure dev_put [2022-07-21 11:31:52,552 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_put [2022-07-21 11:31:52,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 11:31:52,552 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2022-07-21 11:31:52,552 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2022-07-21 11:31:52,553 INFO L130 BoogieDeclarations]: Found specification of procedure pgctrl_write [2022-07-21 11:31:52,553 INFO L138 BoogieDeclarations]: Found implementation of procedure pgctrl_write [2022-07-21 11:31:52,553 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_copy [2022-07-21 11:31:52,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_copy [2022-07-21 11:31:52,553 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-21 11:31:52,554 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-21 11:31:52,554 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-07-21 11:31:52,554 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-07-21 11:31:52,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-21 11:31:52,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-21 11:31:52,554 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2022-07-21 11:31:52,555 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2022-07-21 11:31:52,555 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-07-21 11:31:52,555 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-07-21 11:31:52,555 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 11:31:52,555 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 11:31:52,555 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-07-21 11:31:52,555 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-07-21 11:31:52,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 11:31:52,556 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2022-07-21 11:31:52,556 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2022-07-21 11:31:52,556 INFO L130 BoogieDeclarations]: Found specification of procedure pktgen_clear_counters [2022-07-21 11:31:52,556 INFO L138 BoogieDeclarations]: Found implementation of procedure pktgen_clear_counters [2022-07-21 11:31:52,557 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc_node [2022-07-21 11:31:52,557 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc_node [2022-07-21 11:31:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 11:31:52,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 11:31:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2022-07-21 11:31:52,561 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2022-07-21 11:31:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure in6_pton [2022-07-21 11:31:52,561 INFO L138 BoogieDeclarations]: Found implementation of procedure in6_pton [2022-07-21 11:31:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure proc_create_data [2022-07-21 11:31:52,561 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_create_data [2022-07-21 11:31:52,562 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2022-07-21 11:31:52,566 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2022-07-21 11:31:52,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 11:31:52,567 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2022-07-21 11:31:52,567 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2022-07-21 11:31:52,567 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-21 11:31:52,567 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-21 11:31:52,567 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-07-21 11:31:52,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-07-21 11:31:52,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 11:31:52,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 11:31:52,568 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-07-21 11:31:52,568 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-07-21 11:31:52,568 INFO L130 BoogieDeclarations]: Found specification of procedure __pktgen_NN_threads [2022-07-21 11:31:52,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __pktgen_NN_threads [2022-07-21 11:31:52,568 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-21 11:31:52,568 INFO L130 BoogieDeclarations]: Found specification of procedure pktgen_wait_all_threads_run [2022-07-21 11:31:52,568 INFO L138 BoogieDeclarations]: Found implementation of procedure pktgen_wait_all_threads_run [2022-07-21 11:31:52,569 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_stop [2022-07-21 11:31:52,569 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_stop [2022-07-21 11:31:52,569 INFO L130 BoogieDeclarations]: Found specification of procedure in_aton [2022-07-21 11:31:52,569 INFO L138 BoogieDeclarations]: Found implementation of procedure in_aton [2022-07-21 11:31:52,569 INFO L130 BoogieDeclarations]: Found specification of procedure mac_pton [2022-07-21 11:31:52,569 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_pton [2022-07-21 11:31:52,569 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pernet_subsys [2022-07-21 11:31:52,569 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pernet_subsys [2022-07-21 11:31:52,570 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_acquire [2022-07-21 11:31:52,570 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_acquire [2022-07-21 11:31:52,570 INFO L130 BoogieDeclarations]: Found specification of procedure proc_remove [2022-07-21 11:31:52,570 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_remove [2022-07-21 11:31:52,570 INFO L130 BoogieDeclarations]: Found specification of procedure free_SAs [2022-07-21 11:31:52,570 INFO L138 BoogieDeclarations]: Found implementation of procedure free_SAs [2022-07-21 11:31:52,570 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-21 11:31:52,570 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-21 11:31:52,570 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-21 11:31:52,571 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-21 11:31:52,571 INFO L130 BoogieDeclarations]: Found specification of procedure pgctrl_open [2022-07-21 11:31:52,571 INFO L138 BoogieDeclarations]: Found implementation of procedure pgctrl_open [2022-07-21 11:31:52,571 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-21 11:31:52,571 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-21 11:31:52,571 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-07-21 11:31:52,571 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-07-21 11:31:52,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 11:31:52,572 INFO L130 BoogieDeclarations]: Found specification of procedure pktgen_if_open [2022-07-21 11:31:52,572 INFO L138 BoogieDeclarations]: Found implementation of procedure pktgen_if_open [2022-07-21 11:31:52,572 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-07-21 11:31:52,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 11:31:52,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 11:31:52,572 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-21 11:31:52,572 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-21 11:31:53,290 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 11:31:53,292 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 11:32:08,990 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 11:32:12,146 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 11:32:12,169 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 11:32:12,169 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-21 11:32:12,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:32:12 BoogieIcfgContainer [2022-07-21 11:32:12,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 11:32:12,175 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 11:32:12,175 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 11:32:12,178 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 11:32:12,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:31:47" (1/3) ... [2022-07-21 11:32:12,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ec223bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:32:12, skipping insertion in model container [2022-07-21 11:32:12,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:31:51" (2/3) ... [2022-07-21 11:32:12,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ec223bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:32:12, skipping insertion in model container [2022-07-21 11:32:12,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:32:12" (3/3) ... [2022-07-21 11:32:12,182 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 [2022-07-21 11:32:12,194 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 11:32:12,194 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 11:32:12,283 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 11:32:12,288 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@3135fa7a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@68d14f5b [2022-07-21 11:32:12,288 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 11:32:12,298 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) [2022-07-21 11:32:12,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-07-21 11:32:12,336 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:32:12,337 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] [2022-07-21 11:32:12,338 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:32:12,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:32:12,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1040167170, now seen corresponding path program 1 times [2022-07-21 11:32:12,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:32:12,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079689195] [2022-07-21 11:32:12,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:32:12,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:32:12,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:32:13,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:32:13,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:32:13,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 11:32:13,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:32:13,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 11:32:13,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:32:13,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 11:32:13,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:32:13,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 11:32:13,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:32:13,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 11:32:13,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:32:13,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 11:32:13,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:32:13,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 11:32:13,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:32:13,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:32:13,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:32:13,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 11:32:13,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:32:13,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 11:32:13,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:32:13,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 11:32:13,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:32:13,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 11:32:13,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:32:13,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 11:32:13,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:32:13,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 11:32:13,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:32:13,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-21 11:32:13,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:32:13,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 11:32:13,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:32:13,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-21 11:32:13,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:32:13,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:32:13,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:32:13,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 11:32:13,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:32:13,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 11:32:13,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:32:13,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-21 11:32:13,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:32:13,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-21 11:32:13,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:32:13,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-21 11:32:13,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:32:13,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-21 11:32:13,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:32:13,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:32:13,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:32:13,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 11:32:13,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:32:13,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 11:32:13,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:32:13,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 11:32:13,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:32:13,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-21 11:32:13,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:32:13,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-21 11:32:13,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:32:13,344 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2022-07-21 11:32:13,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:32:13,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079689195] [2022-07-21 11:32:13,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079689195] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:32:13,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:32:13,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:32:13,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472335260] [2022-07-21 11:32:13,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:32:13,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:32:13,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:32:13,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:32:13,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:32:13,379 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) [2022-07-21 11:32:49,376 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 [] [2022-07-21 11:32:51,400 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:32:53,415 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:32:55,443 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:32:57,473 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:32:59,493 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:33:01,527 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:33:03,550 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:33:05,575 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:33:14,029 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:33:16,049 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:33:18,073 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:33:20,104 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:33:22,125 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:33:24,151 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:33:26,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:33:28,198 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:33:30,219 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 [] [2022-07-21 11:33:33,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:33:33,248 INFO L93 Difference]: Finished difference Result 4499 states and 6755 transitions. [2022-07-21 11:33:33,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 11:33:33,253 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 [2022-07-21 11:33:33,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:33:33,284 INFO L225 Difference]: With dead ends: 4499 [2022-07-21 11:33:33,284 INFO L226 Difference]: Without dead ends: 2925 [2022-07-21 11:33:33,297 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 [2022-07-21 11:33:33,300 INFO L413 NwaCegarLoop]: 2401 mSDtfsCounter, 2750 mSDsluCounter, 3736 mSDsCounter, 0 mSdLazyCounter, 3790 mSolverCounterSat, 828 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 78.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2972 SdHoareTripleChecker+Valid, 6137 SdHoareTripleChecker+Invalid, 4636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 828 IncrementalHoareTripleChecker+Valid, 3790 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 79.4s IncrementalHoareTripleChecker+Time [2022-07-21 11:33:33,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2972 Valid, 6137 Invalid, 4636 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [828 Valid, 3790 Invalid, 18 Unknown, 0 Unchecked, 79.4s Time] [2022-07-21 11:33:33,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2022-07-21 11:33:33,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 2750. [2022-07-21 11:33:33,501 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) [2022-07-21 11:33:33,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2750 states to 2750 states and 4045 transitions. [2022-07-21 11:33:33,518 INFO L78 Accepts]: Start accepts. Automaton has 2750 states and 4045 transitions. Word has length 213 [2022-07-21 11:33:33,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:33:33,520 INFO L495 AbstractCegarLoop]: Abstraction has 2750 states and 4045 transitions. [2022-07-21 11:33:33,521 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) [2022-07-21 11:33:33,521 INFO L276 IsEmpty]: Start isEmpty. Operand 2750 states and 4045 transitions. [2022-07-21 11:33:33,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-07-21 11:33:33,533 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:33:33,533 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] [2022-07-21 11:33:33,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 11:33:33,535 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:33:33,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:33:33,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1442494954, now seen corresponding path program 1 times [2022-07-21 11:33:33,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:33:33,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245276047] [2022-07-21 11:33:33,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:33:33,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:33:33,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:33:33,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:33:33,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:33:33,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 11:33:33,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:33:33,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 11:33:33,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:33:33,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 11:33:33,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:33:33,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 11:33:33,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:33:33,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 11:33:33,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:33:33,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 11:33:33,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:33:33,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 11:33:33,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:33:33,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:33:33,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:33:33,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 11:33:33,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:33:33,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 11:33:33,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:33:33,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 11:33:33,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:33:33,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 11:33:33,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:33:33,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 11:33:33,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:33:33,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 11:33:33,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:33:33,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:33:33,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:33:33,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 11:33:33,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:33:33,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 11:33:33,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:33:33,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-21 11:33:33,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:33:33,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-21 11:33:33,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:33:33,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:33:33,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:33:33,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 11:33:33,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:33:33,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:33:33,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:33:33,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 11:33:33,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:33:33,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 11:33:33,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:33:33,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-21 11:33:33,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:33:33,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-21 11:33:34,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:33:34,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 11:33:34,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:33:34,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:33:34,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:33:34,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-21 11:33:34,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:33:34,019 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2022-07-21 11:33:34,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:33:34,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245276047] [2022-07-21 11:33:34,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245276047] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:33:34,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:33:34,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:33:34,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673049371] [2022-07-21 11:33:34,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:33:34,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:33:34,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:33:34,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:33:34,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:33:34,023 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) [2022-07-21 11:33:56,743 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 [] [2022-07-21 11:33:58,774 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:34:00,820 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:34:06,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:34:06,297 INFO L93 Difference]: Finished difference Result 8190 states and 12149 transitions. [2022-07-21 11:34:06,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 11:34:06,297 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 [2022-07-21 11:34:06,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:34:06,327 INFO L225 Difference]: With dead ends: 8190 [2022-07-21 11:34:06,327 INFO L226 Difference]: Without dead ends: 5480 [2022-07-21 11:34:06,339 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 [2022-07-21 11:34:06,340 INFO L413 NwaCegarLoop]: 2496 mSDtfsCounter, 4978 mSDsluCounter, 3281 mSDsCounter, 0 mSdLazyCounter, 2620 mSolverCounterSat, 2174 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5221 SdHoareTripleChecker+Valid, 5777 SdHoareTripleChecker+Invalid, 4797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2174 IncrementalHoareTripleChecker+Valid, 2620 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.0s IncrementalHoareTripleChecker+Time [2022-07-21 11:34:06,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5221 Valid, 5777 Invalid, 4797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2174 Valid, 2620 Invalid, 3 Unknown, 0 Unchecked, 32.0s Time] [2022-07-21 11:34:06,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5480 states. [2022-07-21 11:34:06,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5480 to 5172. [2022-07-21 11:34:06,506 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) [2022-07-21 11:34:06,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5172 states to 5172 states and 7652 transitions. [2022-07-21 11:34:06,534 INFO L78 Accepts]: Start accepts. Automaton has 5172 states and 7652 transitions. Word has length 208 [2022-07-21 11:34:06,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:34:06,535 INFO L495 AbstractCegarLoop]: Abstraction has 5172 states and 7652 transitions. [2022-07-21 11:34:06,535 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) [2022-07-21 11:34:06,535 INFO L276 IsEmpty]: Start isEmpty. Operand 5172 states and 7652 transitions. [2022-07-21 11:34:06,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-07-21 11:34:06,558 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:34:06,558 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] [2022-07-21 11:34:06,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 11:34:06,559 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:34:06,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:34:06,559 INFO L85 PathProgramCache]: Analyzing trace with hash -514015625, now seen corresponding path program 1 times [2022-07-21 11:34:06,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:34:06,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924498067] [2022-07-21 11:34:06,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:34:06,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:34:06,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:06,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:34:06,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:06,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 11:34:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:06,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 11:34:06,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:06,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 11:34:06,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:06,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 11:34:06,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:06,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 11:34:06,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:06,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 11:34:06,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:06,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 11:34:06,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:06,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:34:06,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:06,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 11:34:06,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:06,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 11:34:06,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:06,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 11:34:06,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:06,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 11:34:06,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:06,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 11:34:06,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:06,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 11:34:06,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:06,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 11:34:06,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:06,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-21 11:34:06,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:06,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-21 11:34:06,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:06,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-21 11:34:06,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:06,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 11:34:06,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:06,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-21 11:34:06,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:06,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-21 11:34:06,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:06,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-21 11:34:06,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:06,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-21 11:34:06,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:07,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-21 11:34:07,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:07,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:34:07,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:07,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 11:34:07,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:07,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 11:34:07,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:07,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-21 11:34:07,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:07,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-21 11:34:07,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:07,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-21 11:34:07,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:07,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-07-21 11:34:07,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:07,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:34:07,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:07,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 11:34:07,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:07,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 11:34:07,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:07,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-21 11:34:07,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:07,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-07-21 11:34:07,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:07,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-21 11:34:07,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:34:07,087 INFO L134 CoverageAnalysis]: Checked inductivity of 876 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 872 trivial. 0 not checked. [2022-07-21 11:34:07,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:34:07,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924498067] [2022-07-21 11:34:07,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924498067] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:34:07,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:34:07,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:34:07,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749771396] [2022-07-21 11:34:07,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:34:07,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:34:07,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:34:07,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:34:07,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:34:07,091 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) [2022-07-21 11:34:30,191 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:34:32,215 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:34:34,241 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:34:58,888 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:35:00,914 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:35:02,945 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:35:08,372 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:35:08,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:35:08,874 INFO L93 Difference]: Finished difference Result 13616 states and 20258 transitions. [2022-07-21 11:35:08,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 11:35:08,875 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 [2022-07-21 11:35:08,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:35:08,917 INFO L225 Difference]: With dead ends: 13616 [2022-07-21 11:35:08,918 INFO L226 Difference]: Without dead ends: 8484 [2022-07-21 11:35:08,937 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 [2022-07-21 11:35:08,938 INFO L413 NwaCegarLoop]: 3755 mSDtfsCounter, 3439 mSDsluCounter, 4445 mSDsCounter, 0 mSdLazyCounter, 3226 mSolverCounterSat, 1159 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3679 SdHoareTripleChecker+Valid, 8200 SdHoareTripleChecker+Invalid, 4391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1159 IncrementalHoareTripleChecker+Valid, 3226 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.4s IncrementalHoareTripleChecker+Time [2022-07-21 11:35:08,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3679 Valid, 8200 Invalid, 4391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1159 Valid, 3226 Invalid, 6 Unknown, 0 Unchecked, 61.4s Time] [2022-07-21 11:35:08,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8484 states. [2022-07-21 11:35:09,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8484 to 7924. [2022-07-21 11:35:09,207 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) [2022-07-21 11:35:09,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7924 states to 7924 states and 11735 transitions. [2022-07-21 11:35:09,236 INFO L78 Accepts]: Start accepts. Automaton has 7924 states and 11735 transitions. Word has length 273 [2022-07-21 11:35:09,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:35:09,237 INFO L495 AbstractCegarLoop]: Abstraction has 7924 states and 11735 transitions. [2022-07-21 11:35:09,238 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) [2022-07-21 11:35:09,238 INFO L276 IsEmpty]: Start isEmpty. Operand 7924 states and 11735 transitions. [2022-07-21 11:35:09,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-07-21 11:35:09,262 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:35:09,263 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] [2022-07-21 11:35:09,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 11:35:09,263 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:35:09,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:35:09,264 INFO L85 PathProgramCache]: Analyzing trace with hash 94582647, now seen corresponding path program 1 times [2022-07-21 11:35:09,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:35:09,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775306082] [2022-07-21 11:35:09,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:35:09,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:35:09,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:35:09,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 11:35:09,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 11:35:09,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 11:35:09,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 11:35:09,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 11:35:09,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 11:35:09,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 11:35:09,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:35:09,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 11:35:09,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 11:35:09,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 11:35:09,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 11:35:09,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 11:35:09,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 11:35:09,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 11:35:09,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-21 11:35:09,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-21 11:35:09,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-21 11:35:09,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 11:35:09,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-21 11:35:09,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 11:35:09,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-21 11:35:09,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-21 11:35:09,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-21 11:35:09,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:35:09,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 11:35:09,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 11:35:09,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-07-21 11:35:09,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-21 11:35:09,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-21 11:35:09,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-21 11:35:09,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:35:09,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 11:35:09,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 11:35:09,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-21 11:35:09,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-07-21 11:35:09,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2022-07-21 11:35:09,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:35:09,908 INFO L134 CoverageAnalysis]: Checked inductivity of 876 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 876 trivial. 0 not checked. [2022-07-21 11:35:09,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:35:09,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775306082] [2022-07-21 11:35:09,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775306082] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:35:09,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:35:09,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 11:35:09,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773658335] [2022-07-21 11:35:09,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:35:09,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 11:35:09,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:35:09,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 11:35:09,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-21 11:35:09,911 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) [2022-07-21 11:35:52,748 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 [] [2022-07-21 11:35:54,791 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:35:56,823 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:35:58,844 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:36:00,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:36:02,903 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 []